MASTER Net MASTER Database: GRB220218.94 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name SWIFT GRB220218.94
Trignum 1093860
Trigger time 2022-02-18 22:28:59.35
Notice time 2022-02-18 22:30:41.722149
Coord, eb (08h 55m 19.20s , +31d 59m 02.4s) , 0.05
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
1887825 2022-02-18 22:30:41.722149 08h 55m 19.20s +31d 59m 02.4s SWIFT 0.05 alert 1093860 1 61 alert

DAYS:

MASTER optical transients in this field
Will be published in GCN, ATEL

Synchronous WFC images
Distance datetime coord2000 observatory camera links
6.4 2022-02-18 22:28:58.128 09h 25m 03.00s +33d 30m 41.0s Kislovodsk 29007 Database Kislovodsk
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2022-02-18 22:28:59 (JD 2459629.436794)

Siderial time 10.915249 h

Ra 08:55:19.20 Dec 31:59:02.40
(133.830000d, 31.984000d)

Rise 2022-02-19 12:48:42

Transit 2022-02-19 23:25:46

Set 2022-02-19 10:06:47

Amur

Object: Altitude: 7.98 Azimuth: 131.97

Sun: Altitude: -1.60 Azimuth: 286.17

Moon: Altitude: 13.67 Azimuth: 81.64

Tunka

Object: Altitude: 21.56 Azimuth: 114.77

Sun: Altitude: -16.94 Azimuth: 267.12

Moon: Altitude: 27.64 Azimuth: 60.11

Kislovodsk

Object: Altitude: 60.39 Azimuth: 78.45

Sun: Altitude: -54.71 Azimuth: 208.99

Moon: Altitude: 50.51 Azimuth: 344.10

Tavrida

Object: Altitude: 65.92 Azimuth: 67.08

Sun: Altitude: -56.05 Azimuth: 194.31

Moon: Altitude: 47.32 Azimuth: 332.09

SAAO

Object: Altitude: 24.46 Azimuth: 167.82

Sun: Altitude: -45.85 Azimuth: 7.20

Moon: Altitude: 41.74 Azimuth: 224.66

IAC

Object: Altitude: 68.77 Azimuth: 254.02

Sun: Altitude: -47.00 Azimuth: 104.21

Moon: Altitude: 20.86 Azimuth: 275.38

Argentina

Object: Altitude: -6.75 Azimuth: 236.34

Sun: Altitude: 10.44 Azimuth: 82.86

Moon: Altitude: -29.73 Azimuth: 283.28

Mexico

Object: Altitude: -3.96 Azimuth: 228.59

Sun: Altitude: 30.28 Azimuth: 51.62

Moon: Altitude: -50.21 Azimuth: 207.09

Ural

Object: Altitude: 46.86 Azimuth: 77.18

Sun: Altitude: -37.68 Azimuth: 223.28

Moon: Altitude: 37.94 Azimuth: 8.78

Vostryakovo

Object: Altitude: 58.52 Azimuth: 54.53

Sun: Altitude: -45.14 Azimuth: 196.63

Moon: Altitude: 38.50 Azimuth: 341.05

Gal. latitude: 39.651698 Gal. longitude: 192.801136

Dist. to Sun: 153.528973

Dist. to Moon: 49.677887

Moon coord.: (178.709028 d, 5.263158 d)

Sun coord.: (332.031224 d, -11.496342 d)

Lunar disk: 0.945352

Lunar phase: 27.038141

Lunar bright limb: 105.032462

No SN in this field

2022-02-18 22:30:41 (JD 2459629.437975)

Siderial time 10.943659 h

Ra 08:55:19.20 Dec 31:59:02.40
(133.830000d, 31.984000d)

Rise 2022-02-19 12:48:42

Transit 2022-02-19 23:25:46

Set 2022-02-19 10:06:47

Amur

Object: Altitude: 7.78 Azimuth: 132.27

Sun: Altitude: -1.34 Azimuth: 286.50

Moon: Altitude: 13.41 Azimuth: 81.96

Tunka

Object: Altitude: 21.32 Azimuth: 115.06

Sun: Altitude: -16.68 Azimuth: 267.45

Moon: Altitude: 27.42 Azimuth: 60.50

Kislovodsk

Object: Altitude: 60.09 Azimuth: 78.85

Sun: Altitude: -54.56 Azimuth: 209.66

Moon: Altitude: 50.58 Azimuth: 344.74

Tavrida

Object: Altitude: 65.64 Azimuth: 67.64

Sun: Altitude: -55.97 Azimuth: 195.04

Moon: Altitude: 47.45 Azimuth: 332.67

SAAO

Object: Altitude: 24.38 Azimuth: 167.43

Sun: Altitude: -45.90 Azimuth: 6.60

Moon: Altitude: 41.98 Azimuth: 224.23

IAC

Object: Altitude: 69.13 Azimuth: 253.95

Sun: Altitude: -47.36 Azimuth: 104.51

Moon: Altitude: 21.22 Azimuth: 275.59

Argentina

Object: Altitude: -6.45 Azimuth: 236.14

Sun: Altitude: 10.08 Azimuth: 82.65

Moon: Altitude: -29.38 Azimuth: 283.03

Mexico

Object: Altitude: -3.69 Azimuth: 228.82

Sun: Altitude: 29.99 Azimuth: 51.97

Moon: Altitude: -50.06 Azimuth: 207.68

Ural

Object: Altitude: 46.63 Azimuth: 77.60

Sun: Altitude: -37.52 Azimuth: 223.76

Moon: Altitude: 37.90 Azimuth: 9.30

Vostryakovo

Object: Altitude: 58.32 Azimuth: 55.10

Sun: Altitude: -45.07 Azimuth: 197.21

Moon: Altitude: 38.56 Azimuth: 341.57

Gal. latitude: 39.651698 Gal. longitude: 192.801136

Dist. to Sun: 153.527974

Dist. to Moon: 49.693136

Moon coord.: (178.723106 d, 5.256307 d)

Sun coord.: (332.032361 d, -11.495924 d)

Lunar disk: 0.945296

Lunar phase: 27.052258

Lunar bright limb: 105.039138

No SN in this field

2022-02-18 23:30:41 (JD 2459629.479641)

Siderial time 11.946397 h

Ra 08:55:19.20 Dec 31:59:02.40
(133.830000d, 31.984000d)

Rise 2022-02-19 12:48:42

Transit 2022-02-19 23:25:46

Set 2022-02-19 10:06:47

Amur

Object: Altitude: 1.33 Azimuth: 143.31

Sun: Altitude: 7.51 Azimuth: 298.26

Moon: Altitude: 3.96 Azimuth: 93.08

Tunka

Object: Altitude: 13.29 Azimuth: 125.44

Sun: Altitude: -7.43 Azimuth: 279.15

Moon: Altitude: 18.96 Azimuth: 73.31

Kislovodsk

Object: Altitude: 49.28 Azimuth: 90.68

Sun: Altitude: -47.55 Azimuth: 230.35

Moon: Altitude: 51.03 Azimuth: 7.75

Tavrida

Object: Altitude: 55.31 Azimuth: 83.04

Sun: Altitude: -51.12 Azimuth: 218.54

Moon: Altitude: 50.16 Azimuth: 354.36

SAAO

Object: Altitude: 20.21 Azimuth: 154.40

Sun: Altitude: -45.04 Azimuth: 345.62

Moon: Altitude: 49.33 Azimuth: 206.27

IAC

Object: Altitude: 81.58 Azimuth: 241.92

Sun: Altitude: -59.67 Azimuth: 118.21

Moon: Altitude: 33.72 Azimuth: 283.89

Argentina

Object: Altitude: 3.67 Azimuth: 228.37

Sun: Altitude: -2.42 Azimuth: 74.89

Moon: Altitude: -17.05 Azimuth: 274.74

Mexico

Object: Altitude: 6.56 Azimuth: 236.42

Sun: Altitude: 19.16 Azimuth: 62.92

Moon: Altitude: -42.76 Azimuth: 225.92

Ural

Object: Altitude: 38.51 Azimuth: 90.98

Sun: Altitude: -31.10 Azimuth: 239.81

Moon: Altitude: 35.19 Azimuth: 27.04

Vostryakovo

Object: Altitude: 50.65 Azimuth: 72.77

Sun: Altitude: -41.18 Azimuth: 216.69

Moon: Altitude: 39.63 Azimuth: 0.22

Gal. latitude: 39.651698 Gal. longitude: 192.801136

Dist. to Sun: 153.492707

Dist. to Moon: 50.231599

Moon coord.: (179.219929 d, 5.014230 d)

Sun coord.: (332.072505 d, -11.481155 d)

Lunar disk: 0.943300

Lunar phase: 27.550816

Lunar bright limb: 105.270080

No SN in this field

2024-11-03 12:03:12 (JD 2460618.002222)

Siderial time 17.443987 h

Ra 08:55:19.20 Dec 31:59:02.40
(133.830000d, 31.984000d)

Rise 2024-11-04 19:48:22

Transit 2024-11-04 06:29:21

Set 2024-11-04 17:06:24

Amur

Object: Altitude: -1.20 Azimuth: 211.25

Sun: Altitude: -38.31 Azimuth: 115.40

Moon: Altitude: -32.49 Azimuth: 88.93

Tunka

Object: Altitude: -5.40 Azimuth: 191.28

Sun: Altitude: -23.18 Azimuth: 94.76

Moon: Altitude: -17.67 Azimuth: 71.71

Kislovodsk

Object: Altitude: -2.84 Azimuth: 141.41

Sun: Altitude: 16.69 Azimuth: 48.25

Moon: Altitude: 17.05 Azimuth: 24.97

Tavrida

Object: Altitude: 1.94 Azimuth: 135.44

Sun: Altitude: 20.26 Azimuth: 40.62

Moon: Altitude: 18.32 Azimuth: 17.11

SAAO

Object: Altitude: -32.73 Azimuth: 109.76

Sun: Altitude: 60.75 Azimuth: 119.80

Moon: Altitude: 81.57 Azimuth: 149.24

IAC

Object: Altitude: 27.43 Azimuth: 113.47

Sun: Altitude: 45.16 Azimuth: 344.51

Moon: Altitude: 28.13 Azimuth: 326.42

Argentina

Object: Altitude: 23.23 Azimuth: 160.79

Sun: Altitude: 29.78 Azimuth: 270.03

Moon: Altitude: 16.56 Azimuth: 289.59

Mexico

Object: Altitude: 72.80 Azimuth: 261.62

Sun: Altitude: -20.55 Azimuth: 275.80

Moon: Altitude: -42.80 Azimuth: 276.66

Ural

Object: Altitude: 2.62 Azimuth: 154.68

Sun: Altitude: 0.21 Azimuth: 60.82

Moon: Altitude: 0.14 Azimuth: 38.56

Vostryakovo

Object: Altitude: 8.00 Azimuth: 137.56

Sun: Altitude: 10.65 Azimuth: 42.10

Moon: Altitude: 7.45 Azimuth: 19.79

Gal. latitude: 39.651698 Gal. longitude: 192.801136

Dist. to Sun: 93.839651

Dist. to Moon: 116.079167

Moon coord.: (240.105269 d, -25.048575 d)

Sun coord.: (218.789352 d, -15.200526 d)

Lunar disk: 0.037444

Lunar phase: 157.685392

Lunar bright limb: 292.119801

No SN in this field
Recent coverage and limits telegrams

 #######################################################################################
#######################################################################################

  ID = 5798
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 220218A ( V. D'Elia et al., GCN 31608) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  17.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 220218A errorbox  19 sec after notice time and 104 sec after trigger time at 2022-02-18 22:30:43 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 20 deg. The sun  altitude  is -47.9 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 220218A errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 220218A errorbox  6013 sec after notice time and 6098 sec after trigger time at 2022-02-19 00:10:38 UT, with upper limit up to  18.2 mag. Observations started at twilight.  The observations began at zenith distance = 79 deg. The sun  altitude  is -11.1 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     134 |         MASTER-SAAO | P\  |    80 | 17.3 |  Coadd 
     489 |         MASTER-SAAO | P\  |   790 | 17.8 |  Coadd 
     114 |          MASTER-IAC |  P| |    20 | 17.2 |        
     144 |          MASTER-IAC |  P| |    80 | 18.1 |  Coadd 
     449 |          MASTER-IAC |  P| |   690 | 19.5 |  Coadd 
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     162 |   MASTER-Kislovodsk |  P- |    90 | 16.0 |  Coadd 
     467 |   MASTER-Kislovodsk |  P- |   700 | 17.2 |  Coadd 
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     148 |          MASTER-IAC |  P| |    30 | 17.4 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     186 |          MASTER-IAC |  P| |    30 | 17.6 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        
     285 |         MASTER-SAAO | P\  |   150 | 17.5 |  Coadd 
     231 |          MASTER-IAC |  P| |    40 | 17.5 |        
     291 |          MASTER-IAC |  P| |   160 | 18.7 |  Coadd 
     285 |          MASTER-IAC |  P| |    50 | 17.8 |        
     285 |          MASTER-IAC |  P- |    50 | 17.0 |        
     370 |          MASTER-IAC |  P- |   220 | 17.9 |  Coadd 
     287 |         MASTER-SAAO | P\  |    50 | 17.0 |        
     292 |   MASTER-Kislovodsk |  P- |    50 | 15.9 |        
     372 |   MASTER-Kislovodsk |  P- |   210 | 16.6 |  Coadd 
     354 |         MASTER-SAAO | P\  |    60 | 17.3 |        
     360 |          MASTER-IAC |  P| |    70 | 18.1 |        
     360 |          MASTER-IAC |  P- |    70 | 17.1 |        
     372 |   MASTER-Kislovodsk |  P- |    70 | 15.9 |        
     438 |         MASTER-SAAO | P\  |    80 | 17.0 |        
     543 |         MASTER-SAAO | P\  |   290 | 17.5 |  Coadd 
     444 |          MASTER-IAC |  P| |    80 | 18.2 |        
     554 |          MASTER-IAC |  P| |   300 | 19.2 |  Coadd 
     472 |   MASTER-Kislovodsk |  P- |    90 | 15.9 |        
     548 |          MASTER-IAC |  P| |   100 | 18.3 |        
     548 |          MASTER-IAC |  P- |   100 | 17.6 |        
     575 |         MASTER-SAAO | P\  |   100 | 16.3 |        
     592 |   MASTER-Kislovodsk |  P- |   110 | 15.9 |        
     737 |   MASTER-Kislovodsk |  P- |   400 | 16.5 |  Coadd 
     594 |         MASTER-SAAO | P\  |   110 | 17.4 |        
     666 |          MASTER-IAC |  P| |   120 | 18.6 |        
     732 |   MASTER-Kislovodsk |  P- |   130 | 15.9 |        
     774 |         MASTER-SAAO | P\  |   130 | 16.9 |        
     790 |         MASTER-SAAO | P\  |   140 | 17.5 |        
     809 |          MASTER-IAC |  P| |   150 | 18.7 |        
     989 |          MASTER-IAC |  P| |   510 | 18.7 |  Coadd 
     897 |   MASTER-Kislovodsk |  P- |   160 | 15.9 |        
     982 |          MASTER-IAC |  P| |   180 | 18.3 |        
     982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1018 |         MASTER-SAAO | P\  |   180 | 16.4 |        
    1087 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
    1267 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    1182 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1182 |          MASTER-IAC |  P| |   180 | 18.2 |        
    1287 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1348 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    1528 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1562 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    1382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1488 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1548 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    1582 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1582 |          MASTER-IAC |  P- |   180 | 17.9 |        
    1762 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1689 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    1869 |   MASTER-Kislovodsk |  P- |   540 | 15.9 |  Coadd 
    1747 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    1782 |          MASTER-IAC |  P| |   180 | 18.4 |        
    1782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1889 |   MASTER-Kislovodsk |  P- |   180 | 15.6 |        
    1947 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2127 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2162 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    1982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2089 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    2146 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2182 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2182 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2362 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    2290 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
    2470 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    2346 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2382 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2490 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
    2545 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    2725 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    2582 |          MASTER-IAC |  P| |   180 | 18.4 |        
    2762 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    2582 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2691 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2745 |         MASTER-SAAO | P\  |   180 | 16.9 |        
    2782 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2962 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    2944 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2981 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2981 |          MASTER-IAC |  P- |   180 | 17.7 |        
    3144 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3324 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    3181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3361 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3344 |         MASTER-SAAO | P\  |   180 | 16.5 |        
    3382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3562 |          MASTER-IAC |  P- |   540 | 18.3 |  Coadd 
    3382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3544 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    3581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3744 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3924 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    3781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3961 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3943 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    3982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    4162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4143 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4181 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4342 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4522 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
    4381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4561 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    4381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4542 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4581 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4761 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4741 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    4781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4941 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    5121 |         MASTER-SAAO | P\  |   540 | 16.3 |  Coadd 
    4981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5161 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    4981 |          MASTER-IAC |  P- |   180 | 17.9 |        
    5140 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    5181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5181 |          MASTER-IAC |  P- |   180 | 17.7 |        
    5361 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    5340 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5761 |          MASTER-IAC |  P| |   540 | 19.1 |  Coadd 
    5581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5781 |          MASTER-IAC |  P| |   180 | 18.4 |        
    5781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5961 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    5819 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5999 |         MASTER-SAAO | P\  |   540 | 16.4 |  Coadd 
    5981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6019 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6361 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6189 |         MASTER-OAFA |   C |   180 | 15.6 |        
    6369 |         MASTER-OAFA |   C |   540 | 16.8 |  Coadd 
    6218 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6381 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6561 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    6389 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6418 |         MASTER-SAAO | P\  |   180 | 15.9 |        
    6581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6588 |         MASTER-OAFA |   C |   180 | 16.8 |        
    6781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6961 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6781 |          MASTER-IAC |  P- |   180 | 17.9 |        
    6788 |         MASTER-OAFA |   C |   180 | 17.3 |        
    6968 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
    6830 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    6981 |          MASTER-IAC |  P| |   180 | 18.4 |        
    6981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7161 |          MASTER-IAC |  P- |   540 | 17.9 |  Coadd 
    6988 |         MASTER-OAFA |   C |   180 | 17.6 |        
    7030 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    7181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7187 |         MASTER-OAFA |   C |   180 | 17.9 |        
    7229 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7381 |          MASTER-IAC |  P| |   180 | 15.9 |        
    7381 |          MASTER-IAC |  P- |   180 | 15.4 |        
    7387 |         MASTER-OAFA |   C |   180 | 18.0 |        
    7429 |         MASTER-SAAO | P\  |   180 | 15.6 |        
    7628 |         MASTER-SAAO | P\  |   180 | 15.2 |        
    7828 |         MASTER-SAAO | P\  |   180 | 14.7 |        
    8028 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    8227 |         MASTER-SAAO | P\  |   180 | 14.3 |        
    8427 |         MASTER-SAAO | P\  |   180 | 13.6 |        
    8627 |         MASTER-SAAO | P\  |   180 | 14.3 |        
    8733 |          MASTER-IAC |   C |   180 | 14.7 |        
    8733 |          MASTER-IAC |   C |   180 | 14.6 |        
    8826 |         MASTER-SAAO | P\  |   180 | 13.4 |        
    9025 |         MASTER-SAAO | P\  |   180 | 13.4 |        
    9213 |         MASTER-OAFA |   C |   180 | 17.5 |        
    9224 |         MASTER-SAAO | P\  |   180 | 12.3 |        
   11197 |         MASTER-OAFA |   C |   180 | 16.6 |        
   13015 |         MASTER-OAFA |   C |   180 | 16.6 |        
   14828 |         MASTER-OAFA |   C |   180 | 17.3 |        
   16727 |         MASTER-OAFA |   C |   180 | 17.3 |        
   17155 |          MASTER-IAC |   C |   180 | 18.2 |        
   17155 |          MASTER-IAC |   C |   180 | 18.2 |        
   18666 |         MASTER-OAFA |   C |   180 | 13.5 |        
   19399 |          MASTER-IAC |   C |   180 | 18.4 |        
   19399 |          MASTER-IAC |   C |   180 | 18.0 |        
   20647 |         MASTER-OAFA |   C |   180 | 17.2 |        
   21277 |          MASTER-IAC |   C |   180 | 18.5 |        
   21277 |          MASTER-IAC |   C |   180 | 18.0 |        
   22462 |         MASTER-OAFA |   C |   180 | 17.5 |        
   23281 |          MASTER-IAC |   C |   180 | 17.9 |        
   23281 |          MASTER-IAC |   C |   180 | 18.5 |        
   24325 |         MASTER-OAFA |   C |   180 | 17.5 |        
   26200 |         MASTER-OAFA |   C |   180 | 17.2 |        
   26970 |          MASTER-IAC |   C |   180 | 17.3 |        
   26970 |          MASTER-IAC |   C |   180 | 16.4 |        
   28112 |         MASTER-OAFA |   C |   180 | 16.9 |        
   28910 |          MASTER-IAC |   C |   180 | 17.3 |        
   28910 |          MASTER-IAC |   C |   180 | 14.4 |        
   29933 |         MASTER-OAFA |   C |   180 | 16.6 |        
   31928 |         MASTER-OAFA |   C |   180 | 14.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 5797
TYPE = 35
DAYS = 0.5


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 220218A ( V. D'Elia et al., GCN 31608) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  17.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 220218A errorbox  19 sec after notice time and 104 sec after trigger time at 2022-02-18 22:30:43 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 20 deg. The sun  altitude  is -47.9 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 220218A errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 220218A errorbox  6013 sec after notice time and 6098 sec after trigger time at 2022-02-19 00:10:38 UT, with upper limit up to  18.2 mag. Observations started at twilight.  The observations began at zenith distance = 79 deg. The sun  altitude  is -11.1 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     134 |         MASTER-SAAO | P\  |    80 | 17.3 |  Coadd 
     489 |         MASTER-SAAO | P\  |   790 | 17.8 |  Coadd 
     114 |          MASTER-IAC |  P| |    20 | 17.2 |        
     144 |          MASTER-IAC |  P| |    80 | 18.1 |  Coadd 
     449 |          MASTER-IAC |  P| |   690 | 19.5 |  Coadd 
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     162 |   MASTER-Kislovodsk |  P- |    90 | 16.0 |  Coadd 
     467 |   MASTER-Kislovodsk |  P- |   700 | 17.2 |  Coadd 
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     148 |          MASTER-IAC |  P| |    30 | 17.4 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     186 |          MASTER-IAC |  P| |    30 | 17.6 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        
     285 |         MASTER-SAAO | P\  |   150 | 17.5 |  Coadd 
     231 |          MASTER-IAC |  P| |    40 | 17.5 |        
     291 |          MASTER-IAC |  P| |   160 | 18.7 |  Coadd 
     285 |          MASTER-IAC |  P| |    50 | 17.8 |        
     285 |          MASTER-IAC |  P- |    50 | 17.0 |        
     370 |          MASTER-IAC |  P- |   220 | 17.9 |  Coadd 
     287 |         MASTER-SAAO | P\  |    50 | 17.0 |        
     292 |   MASTER-Kislovodsk |  P- |    50 | 15.9 |        
     372 |   MASTER-Kislovodsk |  P- |   210 | 16.6 |  Coadd 
     354 |         MASTER-SAAO | P\  |    60 | 17.3 |        
     360 |          MASTER-IAC |  P| |    70 | 18.1 |        
     360 |          MASTER-IAC |  P- |    70 | 17.1 |        
     372 |   MASTER-Kislovodsk |  P- |    70 | 15.9 |        
     438 |         MASTER-SAAO | P\  |    80 | 17.0 |        
     543 |         MASTER-SAAO | P\  |   290 | 17.5 |  Coadd 
     444 |          MASTER-IAC |  P| |    80 | 18.2 |        
     554 |          MASTER-IAC |  P| |   300 | 19.2 |  Coadd 
     472 |   MASTER-Kislovodsk |  P- |    90 | 15.9 |        
     548 |          MASTER-IAC |  P| |   100 | 18.3 |        
     548 |          MASTER-IAC |  P- |   100 | 17.6 |        
     575 |         MASTER-SAAO | P\  |   100 | 16.3 |        
     592 |   MASTER-Kislovodsk |  P- |   110 | 15.9 |        
     737 |   MASTER-Kislovodsk |  P- |   400 | 16.5 |  Coadd 
     594 |         MASTER-SAAO | P\  |   110 | 17.4 |        
     666 |          MASTER-IAC |  P| |   120 | 18.6 |        
     732 |   MASTER-Kislovodsk |  P- |   130 | 15.9 |        
     774 |         MASTER-SAAO | P\  |   130 | 16.9 |        
     790 |         MASTER-SAAO | P\  |   140 | 17.5 |        
     809 |          MASTER-IAC |  P| |   150 | 18.7 |        
     989 |          MASTER-IAC |  P| |   510 | 18.7 |  Coadd 
     897 |   MASTER-Kislovodsk |  P- |   160 | 15.9 |        
     982 |          MASTER-IAC |  P| |   180 | 18.3 |        
     982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1018 |         MASTER-SAAO | P\  |   180 | 16.4 |        
    1087 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
    1267 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    1182 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1182 |          MASTER-IAC |  P| |   180 | 18.2 |        
    1287 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1348 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    1528 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1562 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    1382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1488 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1548 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    1582 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1582 |          MASTER-IAC |  P- |   180 | 17.9 |        
    1762 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1689 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    1869 |   MASTER-Kislovodsk |  P- |   540 | 15.9 |  Coadd 
    1747 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    1782 |          MASTER-IAC |  P| |   180 | 18.4 |        
    1782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1889 |   MASTER-Kislovodsk |  P- |   180 | 15.6 |        
    1947 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2127 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2162 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    1982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2089 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    2146 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2182 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2182 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2362 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    2290 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
    2470 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    2346 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2382 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2490 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
    2545 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    2725 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    2582 |          MASTER-IAC |  P| |   180 | 18.4 |        
    2762 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    2582 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2691 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2745 |         MASTER-SAAO | P\  |   180 | 16.9 |        
    2782 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2962 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    2944 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2981 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2981 |          MASTER-IAC |  P- |   180 | 17.7 |        
    3144 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3324 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    3181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3361 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3344 |         MASTER-SAAO | P\  |   180 | 16.5 |        
    3382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3562 |          MASTER-IAC |  P- |   540 | 18.3 |  Coadd 
    3382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3544 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    3581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3744 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3924 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    3781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3961 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3943 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    3982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    4162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4143 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4181 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4342 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4522 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
    4381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4561 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    4381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4542 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4581 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4761 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4741 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    4781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4941 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    5121 |         MASTER-SAAO | P\  |   540 | 16.3 |  Coadd 
    4981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5161 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    4981 |          MASTER-IAC |  P- |   180 | 17.9 |        
    5140 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    5181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5181 |          MASTER-IAC |  P- |   180 | 17.7 |        
    5361 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    5340 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5761 |          MASTER-IAC |  P| |   540 | 19.1 |  Coadd 
    5581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5781 |          MASTER-IAC |  P| |   180 | 18.4 |        
    5781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5961 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    5819 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5999 |         MASTER-SAAO | P\  |   540 | 16.4 |  Coadd 
    5981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6019 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6361 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6189 |         MASTER-OAFA |   C |   180 | 15.6 |        
    6369 |         MASTER-OAFA |   C |   540 | 16.8 |  Coadd 
    6218 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6381 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6561 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    6389 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6418 |         MASTER-SAAO | P\  |   180 | 15.9 |        
    6581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6588 |         MASTER-OAFA |   C |   180 | 16.8 |        
    6781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6961 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6781 |          MASTER-IAC |  P- |   180 | 17.9 |        
    6788 |         MASTER-OAFA |   C |   180 | 17.3 |        
    6968 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
    6830 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    6981 |          MASTER-IAC |  P| |   180 | 18.4 |        
    6981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7161 |          MASTER-IAC |  P- |   540 | 17.9 |  Coadd 
    6988 |         MASTER-OAFA |   C |   180 | 17.6 |        
    7030 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    7181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7187 |         MASTER-OAFA |   C |   180 | 17.9 |        
    7229 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7381 |          MASTER-IAC |  P| |   180 | 15.9 |        
    7381 |          MASTER-IAC |  P- |   180 | 15.4 |        
    7387 |         MASTER-OAFA |   C |   180 | 18.0 |        
    7429 |         MASTER-SAAO | P\  |   180 | 15.6 |        
    7628 |         MASTER-SAAO | P\  |   180 | 15.2 |        
    7828 |         MASTER-SAAO | P\  |   180 | 14.7 |        
    8028 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    8227 |         MASTER-SAAO | P\  |   180 | 14.3 |        
    8427 |         MASTER-SAAO | P\  |   180 | 13.6 |        
    8627 |         MASTER-SAAO | P\  |   180 | 14.3 |        
    8733 |          MASTER-IAC |   C |   180 | 14.7 |        
    8733 |          MASTER-IAC |   C |   180 | 14.6 |        
    8826 |         MASTER-SAAO | P\  |   180 | 13.4 |        
    9025 |         MASTER-SAAO | P\  |   180 | 13.4 |        
    9213 |         MASTER-OAFA |   C |   180 | 17.5 |        
    9224 |         MASTER-SAAO | P\  |   180 | 12.3 |        
   11197 |         MASTER-OAFA |   C |   180 | 16.6 |        
   13015 |         MASTER-OAFA |   C |   180 | 16.6 |        
   14828 |         MASTER-OAFA |   C |   180 | 17.3 |        
   16727 |         MASTER-OAFA |   C |   180 | 17.3 |        
   17155 |          MASTER-IAC |   C |   180 | 18.2 |        
   17155 |          MASTER-IAC |   C |   180 | 18.2 |        
   18666 |         MASTER-OAFA |   C |   180 | 13.5 |        
   19399 |          MASTER-IAC |   C |   180 | 18.4 |        
   19399 |          MASTER-IAC |   C |   180 | 18.0 |        
   20647 |         MASTER-OAFA |   C |   180 | 17.2 |        
   21277 |          MASTER-IAC |   C |   180 | 18.5 |        
   21277 |          MASTER-IAC |   C |   180 | 18.0 |        
   22462 |         MASTER-OAFA |   C |   180 | 17.5 |        
   23281 |          MASTER-IAC |   C |   180 | 17.9 |        
   23281 |          MASTER-IAC |   C |   180 | 18.5 |        
   24325 |         MASTER-OAFA |   C |   180 | 17.5 |        
   26200 |         MASTER-OAFA |   C |   180 | 17.2 |        
   26970 |          MASTER-IAC |   C |   180 | 17.3 |        
   26970 |          MASTER-IAC |   C |   180 | 16.4 |        
   28112 |         MASTER-OAFA |   C |   180 | 16.9 |        
   28910 |          MASTER-IAC |   C |   180 | 17.3 |        
   28910 |          MASTER-IAC |   C |   180 | 14.4 |        
   29933 |         MASTER-OAFA |   C |   180 | 16.6 |        
   31928 |         MASTER-OAFA |   C |   180 | 14.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 5796
TYPE = 35
DAYS = 0.1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 220218A ( V. D'Elia et al., GCN 31608) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  17.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 220218A errorbox  19 sec after notice time and 104 sec after trigger time at 2022-02-18 22:30:43 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 20 deg. The sun  altitude  is -47.9 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 220218A errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 220218A errorbox  6013 sec after notice time and 6098 sec after trigger time at 2022-02-19 00:10:38 UT, with upper limit up to  18.2 mag. Observations started at twilight.  The observations began at zenith distance = 79 deg. The sun  altitude  is -11.1 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     134 |         MASTER-SAAO | P\  |    80 | 17.3 |  Coadd 
     489 |         MASTER-SAAO | P\  |   790 | 17.8 |  Coadd 
     114 |          MASTER-IAC |  P| |    20 | 17.2 |        
     144 |          MASTER-IAC |  P| |    80 | 18.1 |  Coadd 
     449 |          MASTER-IAC |  P| |   690 | 19.5 |  Coadd 
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     162 |   MASTER-Kislovodsk |  P- |    90 | 16.0 |  Coadd 
     467 |   MASTER-Kislovodsk |  P- |   700 | 17.2 |  Coadd 
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     148 |          MASTER-IAC |  P| |    30 | 17.4 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     186 |          MASTER-IAC |  P| |    30 | 17.6 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        
     285 |         MASTER-SAAO | P\  |   150 | 17.5 |  Coadd 
     231 |          MASTER-IAC |  P| |    40 | 17.5 |        
     291 |          MASTER-IAC |  P| |   160 | 18.7 |  Coadd 
     285 |          MASTER-IAC |  P| |    50 | 17.8 |        
     285 |          MASTER-IAC |  P- |    50 | 17.0 |        
     370 |          MASTER-IAC |  P- |   220 | 17.9 |  Coadd 
     287 |         MASTER-SAAO | P\  |    50 | 17.0 |        
     292 |   MASTER-Kislovodsk |  P- |    50 | 15.9 |        
     372 |   MASTER-Kislovodsk |  P- |   210 | 16.6 |  Coadd 
     354 |         MASTER-SAAO | P\  |    60 | 17.3 |        
     360 |          MASTER-IAC |  P| |    70 | 18.1 |        
     360 |          MASTER-IAC |  P- |    70 | 17.1 |        
     372 |   MASTER-Kislovodsk |  P- |    70 | 15.9 |        
     438 |         MASTER-SAAO | P\  |    80 | 17.0 |        
     543 |         MASTER-SAAO | P\  |   290 | 17.5 |  Coadd 
     444 |          MASTER-IAC |  P| |    80 | 18.2 |        
     554 |          MASTER-IAC |  P| |   300 | 19.2 |  Coadd 
     472 |   MASTER-Kislovodsk |  P- |    90 | 15.9 |        
     548 |          MASTER-IAC |  P| |   100 | 18.3 |        
     548 |          MASTER-IAC |  P- |   100 | 17.6 |        
     575 |         MASTER-SAAO | P\  |   100 | 16.3 |        
     592 |   MASTER-Kislovodsk |  P- |   110 | 15.9 |        
     737 |   MASTER-Kislovodsk |  P- |   400 | 16.5 |  Coadd 
     594 |         MASTER-SAAO | P\  |   110 | 17.4 |        
     666 |          MASTER-IAC |  P| |   120 | 18.6 |        
     732 |   MASTER-Kislovodsk |  P- |   130 | 15.9 |        
     774 |         MASTER-SAAO | P\  |   130 | 16.9 |        
     790 |         MASTER-SAAO | P\  |   140 | 17.5 |        
     809 |          MASTER-IAC |  P| |   150 | 18.7 |        
     989 |          MASTER-IAC |  P| |   510 | 18.7 |  Coadd 
     897 |   MASTER-Kislovodsk |  P- |   160 | 15.9 |        
     982 |          MASTER-IAC |  P| |   180 | 18.3 |        
     982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1018 |         MASTER-SAAO | P\  |   180 | 16.4 |        
    1087 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
    1267 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    1182 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1182 |          MASTER-IAC |  P| |   180 | 18.2 |        
    1287 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1348 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    1528 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1562 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    1382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1488 |   MASTER-Kislovodsk |  P- |   180 | 14.5 |        
    1548 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    1582 |          MASTER-IAC |  P| |   180 | 18.3 |        
    1582 |          MASTER-IAC |  P- |   180 | 17.9 |        
    1762 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    1689 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    1869 |   MASTER-Kislovodsk |  P- |   540 | 15.9 |  Coadd 
    1747 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    1782 |          MASTER-IAC |  P| |   180 | 18.4 |        
    1782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    1889 |   MASTER-Kislovodsk |  P- |   180 | 15.6 |        
    1947 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2127 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    1982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2162 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    1982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2089 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
    2146 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    2182 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2182 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2362 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    2290 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
    2470 |   MASTER-Kislovodsk |  P- |   540 | 15.5 |  Coadd 
    2346 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2382 |          MASTER-IAC |  P- |   180 | 17.7 |        
    2490 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
    2545 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    2725 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    2582 |          MASTER-IAC |  P| |   180 | 18.4 |        
    2762 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    2582 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2691 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2745 |         MASTER-SAAO | P\  |   180 | 16.9 |        
    2782 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2782 |          MASTER-IAC |  P- |   180 | 17.8 |        
    2962 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    2944 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    2981 |          MASTER-IAC |  P| |   180 | 18.3 |        
    2981 |          MASTER-IAC |  P- |   180 | 17.7 |        
    3144 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3324 |         MASTER-SAAO | P\  |   540 | 16.9 |  Coadd 
    3181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3361 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3344 |         MASTER-SAAO | P\  |   180 | 16.5 |        
    3382 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3562 |          MASTER-IAC |  P- |   540 | 18.3 |  Coadd 
    3382 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3544 |         MASTER-SAAO | P\  |   180 | 16.8 |        
    3581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3744 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3924 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    3781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3961 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    3781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    3943 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    3982 |          MASTER-IAC |  P| |   180 | 18.3 |        
    3982 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4162 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4143 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4181 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4342 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    4522 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
    4381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4561 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    4381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4542 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4581 |          MASTER-IAC |  P| |   180 | 18.2 |        
    4761 |          MASTER-IAC |  P- |   540 | 18.5 |  Coadd 
    4741 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    4781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    4941 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    5121 |         MASTER-SAAO | P\  |   540 | 16.3 |  Coadd 
    4981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5161 |          MASTER-IAC |  P| |   540 | 18.9 |  Coadd 
    4981 |          MASTER-IAC |  P- |   180 | 17.9 |        
    5140 |         MASTER-SAAO | P\  |   180 | 16.7 |        
    5181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5181 |          MASTER-IAC |  P- |   180 | 17.7 |        
    5361 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    5340 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5381 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    5761 |          MASTER-IAC |  P| |   540 | 19.1 |  Coadd 
    5581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5781 |          MASTER-IAC |  P| |   180 | 18.4 |        
    5781 |          MASTER-IAC |  P- |   180 | 17.8 |        
    5961 |          MASTER-IAC |  P- |   540 | 18.4 |  Coadd 
    5819 |         MASTER-SAAO | P\  |   180 | 16.2 |        
    5999 |         MASTER-SAAO | P\  |   540 | 16.4 |  Coadd 
    5981 |          MASTER-IAC |  P| |   180 | 18.2 |        
    5981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6019 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6361 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6189 |         MASTER-OAFA |   C |   180 | 15.6 |        
    6369 |         MASTER-OAFA |   C |   540 | 16.8 |  Coadd 
    6218 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    6381 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6381 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6561 |          MASTER-IAC |  P- |   540 | 18.6 |  Coadd 
    6389 |         MASTER-OAFA |   C |   180 | 16.5 |        
    6418 |         MASTER-SAAO | P\  |   180 | 15.9 |        
    6581 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6581 |          MASTER-IAC |  P- |   180 | 17.8 |        
    6588 |         MASTER-OAFA |   C |   180 | 16.8 |        
    6781 |          MASTER-IAC |  P| |   180 | 18.3 |        
    6961 |          MASTER-IAC |  P| |   540 | 19.0 |  Coadd 
    6781 |          MASTER-IAC |  P- |   180 | 17.9 |        
    6788 |         MASTER-OAFA |   C |   180 | 17.3 |        
    6968 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd 
    6830 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    6981 |          MASTER-IAC |  P| |   180 | 18.4 |        
    6981 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7161 |          MASTER-IAC |  P- |   540 | 17.9 |  Coadd 
    6988 |         MASTER-OAFA |   C |   180 | 17.6 |        
    7030 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7181 |          MASTER-IAC |  P- |   180 | 17.8 |        
    7181 |          MASTER-IAC |  P| |   180 | 18.3 |        
    7187 |         MASTER-OAFA |   C |   180 | 17.9 |        
    7229 |         MASTER-SAAO | P\  |   180 | 15.7 |        
    7381 |          MASTER-IAC |  P- |   180 | 15.4 |        
    7381 |          MASTER-IAC |  P| |   180 | 15.9 |        
    7387 |         MASTER-OAFA |   C |   180 | 18.0 |        
    7429 |         MASTER-SAAO | P\  |   180 | 15.6 |        
    7628 |         MASTER-SAAO | P\  |   180 | 15.2 |        
    7828 |         MASTER-SAAO | P\  |   180 | 14.7 |        
    8028 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    8227 |         MASTER-SAAO | P\  |   180 | 14.3 |        
    8427 |         MASTER-SAAO | P\  |   180 | 13.6 |        
    8627 |         MASTER-SAAO | P\  |   180 | 14.3 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 5795
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB220218.94 (trigger No 1093860,08h 55m 19.20s , +31d 59m 02.4s, R=0.05) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB220218.94 errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 5794
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB220218.94 (trigger No 1093860,08h 55m 19.20s , +31d 59m 02.4s, R=0.05) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB220218.94 errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 5793
TYPE = 34
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB220218.94 (trigger No 1093860,08h 55m 19.20s , +31d 59m 02.4s, R=0.05) errorbox  8 sec after notice time and 93 sec after trigger time at 2022-02-18 22:30:33 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -46.2 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB220218.94 errorbox  32 sec after notice time and 117 sec after trigger time at 2022-02-18 22:30:56 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -55.4 deg. 

The galactic latitude b = 40 deg., longitude l = 193 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1887825

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     104 |         MASTER-SAAO | P\  |    20 | 16.5 |        
     127 |   MASTER-Kislovodsk |  P- |    20 | 15.1 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     172 |   MASTER-Kislovodsk |  P- |    30 | 15.1 |        
     182 |         MASTER-SAAO | P\  |    30 | 16.8 |        
     227 |   MASTER-Kislovodsk |  P- |    40 | 15.9 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.8 |        


The observation and reduction will continue. 
The message may be cited.

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