MASTER Net MASTER Database: GRB210726.81 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 GRB210726.81
Trignum 1061687
Trigger time 2021-07-26 19:20:22
Notice time 2021-07-26 19:33:53.363122
Coord, eb (12h 53m 09.84s , +19d 11m 24.0s) , 0.0005
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)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
2459675 2024-05-17 01:47:19.069288 12h 53m 22.08s +19d 11m 06.0s SWIFT 0.05 retraction 1061687 1 4044 retraction
1671127 2021-07-26 19:21:00.315833 12h 53m 20.47s +19d 11m 20.8s SWIFT 0 alert 1061687 8 68 alert
1671142 2021-07-26 19:33:53.363122 12h 53m 09.84s +19d 11m 24.0s SWIFT 0.0005 alert 1061687 7 67 alert
1671125 2021-07-26 19:20:02.008322 12h 53m 22.08s +19d 11m 06.0s SWIFT 0.05 alert 1061687 4 61 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory links
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-07-26 19:20:22 (JD 2459422.305810)

Siderial time 18.161097 h

Ra 12:53:09.84 Dec 19:11:24.00
(193.291000d, 19.190000d)

Rise 2021-07-27 05:54:10

Transit 2021-07-27 14:00:48

Set 2021-07-27 22:07:24

Amur

Object: Altitude: -19.81 Azimuth: 168.95

Sun: Altitude: -4.59 Azimuth: 231.92

Moon: Altitude: 24.23 Azimuth: 21.51

Tunka

Object: Altitude: -12.56 Azimuth: 145.88

Sun: Altitude: -13.63 Azimuth: 210.81

Moon: Altitude: 25.02 Azimuth: 355.33

Kislovodsk

Object: Altitude: 17.35 Azimuth: 100.23

Sun: Altitude: -21.66 Azimuth: 150.81

Moon: Altitude: 8.19 Azimuth: 296.98

Tavrida

Object: Altitude: 23.52 Azimuth: 94.21

Sun: Altitude: -17.52 Azimuth: 143.24

Moon: Altitude: 2.22 Azimuth: 290.90

SAAO

Object: Altitude: 11.22 Azimuth: 121.50

Sun: Altitude: -43.23 Azimuth: 86.66

Moon: Altitude: 9.77 Azimuth: 279.34

IAC

Object: Altitude: 65.44 Azimuth: 73.74

Sun: Altitude: 7.13 Azimuth: 108.14

Moon: Altitude: -35.86 Azimuth: 265.84

Argentina

Object: Altitude: 32.46 Azimuth: 211.49

Sun: Altitude: 26.42 Azimuth: 137.98

Moon: Altitude: -45.03 Azimuth: 355.50

Mexico

Object: Altitude: 27.46 Azimuth: 263.14

Sun: Altitude: 78.18 Azimuth: 352.52

Moon: Altitude: -50.90 Azimuth: 108.82

Ural

Object: Altitude: 10.21 Azimuth: 109.64

Sun: Altitude: -13.01 Azimuth: 168.68

Moon: Altitude: 9.55 Azimuth: 312.89

Vostryakovo

Object: Altitude: 21.71 Azimuth: 92.63

Sun: Altitude: -10.08 Azimuth: 148.13

Moon: Altitude: 0.40 Azimuth: 294.06

Gal. latitude: 81.734659 Gal. longitude: 309.854947

Dist. to Sun: 63.044827

Dist. to Moon: 149.565212

Moon coord.: (342.210657 d, -13.058377 d)

Sun coord.: (126.031965 d, 19.325549 d)

Lunar disk: 0.908809

Lunar phase: 35.152920

Lunar bright limb: 74.872292

No SN in this field

2021-07-26 19:33:53 (JD 2459422.315197)

Siderial time 18.386991 h

Ra 12:53:09.84 Dec 19:11:24.00
(193.291000d, 19.190000d)

Rise 2021-07-27 05:54:10

Transit 2021-07-27 14:00:48

Set 2021-07-27 22:07:24

Amur

Object: Altitude: -20.17 Azimuth: 172.33

Sun: Altitude: -2.87 Azimuth: 234.61

Moon: Altitude: 23.45 Azimuth: 24.88

Tunka

Object: Altitude: -13.69 Azimuth: 148.96

Sun: Altitude: -12.51 Azimuth: 213.87

Moon: Altitude: 25.17 Azimuth: 358.84

Kislovodsk

Object: Altitude: 14.95 Azimuth: 102.44

Sun: Altitude: -22.79 Azimuth: 154.03

Moon: Altitude: 10.31 Azimuth: 299.39

Tavrida

Object: Altitude: 21.12 Azimuth: 96.51

Sun: Altitude: -18.90 Azimuth: 146.26

Moon: Altitude: 4.41 Azimuth: 293.22

SAAO

Object: Altitude: 8.75 Azimuth: 119.43

Sun: Altitude: -46.08 Azimuth: 84.63

Moon: Altitude: 12.48 Azimuth: 277.62

IAC

Object: Altitude: 62.55 Azimuth: 76.90

Sun: Altitude: 4.32 Azimuth: 109.65

Moon: Altitude: -32.96 Azimuth: 267.45

Argentina

Object: Altitude: 33.89 Azimuth: 208.07

Sun: Altitude: 24.45 Azimuth: 135.20

Moon: Altitude: -44.75 Azimuth: 351.02

Mexico

Object: Altitude: 30.35 Azimuth: 264.71

Sun: Altitude: 78.16 Azimuth: 8.13

Moon: Altitude: -53.49 Azimuth: 111.83

Ural

Object: Altitude: 8.49 Azimuth: 112.37

Sun: Altitude: -13.32 Azimuth: 171.94

Moon: Altitude: 10.87 Azimuth: 315.84

Vostryakovo

Object: Altitude: 19.79 Azimuth: 95.37

Sun: Altitude: -11.06 Azimuth: 151.22

Moon: Altitude: 2.12 Azimuth: 296.75

Gal. latitude: 81.734659 Gal. longitude: 309.854947

Dist. to Sun: 63.036753

Dist. to Moon: 149.663812

Moon coord.: (342.329670 d, -13.010737 d)

Sun coord.: (126.041205 d, 19.323450 d)

Lunar disk: 0.908229

Lunar phase: 35.268162

Lunar bright limb: 74.825907

No SN in this field

2021-07-26 20:33:53 (JD 2459422.356863)

Siderial time 19.389729 h

Ra 12:53:09.84 Dec 19:11:24.00
(193.291000d, 19.190000d)

Rise 2021-07-27 05:54:10

Transit 2021-07-27 14:00:48

Set 2021-07-27 22:07:24

Amur

Object: Altitude: -20.18 Azimuth: 187.47

Sun: Altitude: 5.44 Azimuth: 246.08

Moon: Altitude: 18.73 Azimuth: 39.19

Tunka

Object: Altitude: -17.46 Azimuth: 163.18

Sun: Altitude: -6.51 Azimuth: 226.88

Moon: Altitude: 24.35 Azimuth: 14.40

Kislovodsk

Object: Altitude: 4.59 Azimuth: 112.31

Sun: Altitude: -26.23 Azimuth: 169.12

Moon: Altitude: 19.04 Azimuth: 310.91

Tavrida

Object: Altitude: 10.67 Azimuth: 106.51

Sun: Altitude: -23.69 Azimuth: 160.56

Moon: Altitude: 13.61 Azimuth: 304.11

SAAO

Object: Altitude: -2.74 Azimuth: 111.06

Sun: Altitude: -58.50 Azimuth: 73.42

Moon: Altitude: 24.59 Azimuth: 269.90

IAC

Object: Altitude: 49.44 Azimuth: 86.85

Sun: Altitude: -7.82 Azimuth: 116.94

Moon: Altitude: -20.10 Azimuth: 274.06

Argentina

Object: Altitude: 38.22 Azimuth: 191.31

Sun: Altitude: 14.65 Azimuth: 124.35

Moon: Altitude: -41.05 Azimuth: 332.33

Mexico

Object: Altitude: 43.22 Azimuth: 272.25

Sun: Altitude: 70.86 Azimuth: 56.12

Moon: Altitude: -64.06 Azimuth: 130.28

Ural

Object: Altitude: 1.31 Azimuth: 124.68

Sun: Altitude: -13.44 Azimuth: 186.49

Moon: Altitude: 15.86 Azimuth: 329.46

Vostryakovo

Object: Altitude: 11.43 Azimuth: 107.30

Sun: Altitude: -14.22 Azimuth: 165.36

Moon: Altitude: 9.21 Azimuth: 309.05

Gal. latitude: 81.734659 Gal. longitude: 309.854947

Dist. to Sun: 63.000915

Dist. to Moon: 150.098969

Moon coord.: (342.857009 d, -12.798770 d)

Sun coord.: (126.082217 d, 19.314124 d)

Lunar disk: 0.905637

Lunar phase: 35.779358

Lunar bright limb: 74.623114

No SN in this field

2024-07-04 03:06:41 (JD 2460495.629641)

Siderial time 0.460962 h

Ra 12:53:09.84 Dec 19:11:24.00
(193.291000d, 19.190000d)

Rise 2024-07-04 07:23:31

Transit 2024-07-04 15:30:09

Set 2024-07-04 23:36:45

Amur

Object: Altitude: 10.64 Azimuth: 252.70

Sun: Altitude: 62.08 Azimuth: 346.93

Moon: Altitude: 63.41 Azimuth: 38.59

Tunka

Object: Altitude: -2.39 Azimuth: 234.18

Sun: Altitude: 52.54 Azimuth: 308.69

Moon: Altitude: 65.47 Azimuth: 347.04

Kislovodsk

Object: Altitude: -27.05 Azimuth: 178.44

Sun: Altitude: 14.52 Azimuth: 252.06

Moon: Altitude: 35.15 Azimuth: 263.51

Tavrida

Object: Altitude: -25.43 Azimuth: 169.56

Sun: Altitude: 9.16 Azimuth: 246.76

Moon: Altitude: 29.28 Azimuth: 258.77

SAAO

Object: Altitude: -65.40 Azimuth: 63.26

Sun: Altitude: -31.04 Azimuth: 261.05

Moon: Altitude: -13.10 Azimuth: 245.32

IAC

Object: Altitude: -14.69 Azimuth: 121.81

Sun: Altitude: -31.49 Azimuth: 212.04

Moon: Altitude: -13.51 Azimuth: 227.75

Argentina

Object: Altitude: 8.31 Azimuth: 118.78

Sun: Altitude: -67.44 Azimuth: 72.53

Moon: Altitude: -85.68 Azimuth: 341.21

Mexico

Object: Altitude: 64.04 Azimuth: 68.89

Sun: Altitude: -8.03 Azimuth: 122.90

Moon: Altitude: -20.22 Azimuth: 143.13

Ural

Object: Altitude: -12.67 Azimuth: 195.04

Sun: Altitude: 27.37 Azimuth: 269.65

Moon: Altitude: 44.63 Azimuth: 288.76

Vostryakovo

Object: Altitude: -15.24 Azimuth: 173.95

Sun: Altitude: 15.23 Azimuth: 251.65

Moon: Altitude: 32.95 Azimuth: 267.92

Gal. latitude: 81.734659 Gal. longitude: 309.854947

Dist. to Sun: 82.582830

Dist. to Moon: 101.487206

Moon coord.: (78.399136 d, 27.702054 d)

Sun coord.: (103.377286 d, 22.876652 d)

Lunar disk: 0.040135

Lunar phase: 156.886759

Lunar bright limb: 96.169883

No SN in this field

Recent coverage and limits telegrams

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

  ID = 4697
TYPE = 35
DAYS = 1


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210726A ( M. G. Bernardini et al., GCN 30523) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210726A errorbox  5124 sec after notice time and 5147 sec after trigger time at 2021-07-26 20:44:51 UT, with upper limit up to  19.5 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -10.5 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 210726A errorbox  13491 sec after notice time and 13514 sec after trigger time at 2021-07-26 23:04:18 UT, with upper limit up to  19.2 mag. Observations started at twilight.  The observations began at zenith distance = 57 deg. The sun  altitude  is -14.5 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671125

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        
     134 |      MASTER-Tavrida |  P\ |    20 | 15.1 |        
     178 |      MASTER-Tavrida |  P\ |    30 | 15.6 |        
     373 |      MASTER-Tavrida |  P\ |    50 | 15.8 |        
     452 |      MASTER-Tavrida |  P\ |    70 | 16.0 |        
     547 |      MASTER-Tavrida |  P\ |    80 | 16.2 |        
     968 |      MASTER-Tavrida |  P\ |   160 | 16.1 |        
    1157 |      MASTER-Tavrida |  P\ |   180 | 16.1 |        
    1357 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1556 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1755 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1955 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2154 |      MASTER-Tavrida |  P\ |   180 | 16.0 |        
    2354 |      MASTER-Tavrida |  P\ |   180 | 15.8 |        
    2553 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2753 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    2952 |      MASTER-Tavrida |  P\ |   180 | 15.5 |        
    3152 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    3351 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    3794 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    3993 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    4193 |      MASTER-Tavrida |  P\ |   180 | 14.6 |        
    4392 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    5238 |          MASTER-IAC |   C |   180 | 17.3 |        
    5418 |          MASTER-IAC |   C |   540 | 18.2 |  Coadd 
    5238 |          MASTER-IAC |   C |   180 | 17.1 |        
    5418 |          MASTER-IAC |   C |   540 | 18.0 |  Coadd 
    5437 |          MASTER-IAC |   C |   180 | 17.7 |        
    5437 |          MASTER-IAC |   C |   180 | 17.3 |        
    5638 |          MASTER-IAC |   C |   180 | 17.9 |        
    5638 |          MASTER-IAC |   C |   180 | 17.7 |        
    5837 |          MASTER-IAC |   C |   180 | 18.4 |        
    6017 |          MASTER-IAC |   C |   540 | 19.1 |  Coadd 
    5837 |          MASTER-IAC |   C |   180 | 18.0 |        
    6017 |          MASTER-IAC |   C |   540 | 19.0 |  Coadd 
    6037 |          MASTER-IAC |   C |   180 | 18.7 |        
    6037 |          MASTER-IAC |   C |   180 | 18.3 |        
    6237 |          MASTER-IAC |   C |   180 | 18.8 |        
    6237 |          MASTER-IAC |   C |   180 | 18.6 |        
    6437 |          MASTER-IAC |   C |   180 | 19.0 |        
    6617 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    6437 |          MASTER-IAC |   C |   180 | 18.7 |        
    6617 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    6637 |          MASTER-IAC |   C |   180 | 19.1 |        
    6637 |          MASTER-IAC |   C |   180 | 18.7 |        
    6838 |          MASTER-IAC |   C |   180 | 19.1 |        
    6838 |          MASTER-IAC |   C |   180 | 18.8 |        
    7037 |          MASTER-IAC |   C |   180 | 19.0 |        
    7217 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    7037 |          MASTER-IAC |   C |   180 | 18.8 |        
    7217 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    7237 |          MASTER-IAC |   C |   180 | 19.1 |        
    7237 |          MASTER-IAC |   C |   180 | 18.8 |        
    7439 |          MASTER-IAC |   C |   180 | 19.2 |        
    7439 |          MASTER-IAC |   C |   180 | 19.0 |        
    9406 |          MASTER-IAC |   C |   180 | 19.0 |        
    9406 |          MASTER-IAC |   C |   180 | 18.8 |        
   11245 |          MASTER-IAC |   C |   180 | 18.5 |        
   11245 |          MASTER-IAC |   C |   180 | 18.3 |        
   13123 |          MASTER-IAC |   C |   180 | 17.6 |        
   13123 |          MASTER-IAC |   C |   180 | 16.8 |        
   13605 |         MASTER-OAFA |   C |   180 | 18.8 |        
   15207 |          MASTER-IAC |   C |   180 | 16.8 |        
   15480 |         MASTER-OAFA |   C |   180 | 19.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4693
TYPE = 35
DAYS = 0.5


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210726A ( M. G. Bernardini et al., GCN 30523) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210726A errorbox  5124 sec after notice time and 5147 sec after trigger time at 2021-07-26 20:44:51 UT, with upper limit up to  19.5 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -10.5 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 210726A errorbox  13491 sec after notice time and 13514 sec after trigger time at 2021-07-26 23:04:18 UT, with upper limit up to  19.2 mag. Observations started at twilight.  The observations began at zenith distance = 57 deg. The sun  altitude  is -14.5 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671125

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        
     134 |      MASTER-Tavrida |  P\ |    20 | 15.1 |        
     178 |      MASTER-Tavrida |  P\ |    30 | 15.6 |        
     373 |      MASTER-Tavrida |  P\ |    50 | 15.8 |        
     452 |      MASTER-Tavrida |  P\ |    70 | 16.0 |        
     547 |      MASTER-Tavrida |  P\ |    80 | 16.2 |        
     968 |      MASTER-Tavrida |  P\ |   160 | 16.1 |        
    1157 |      MASTER-Tavrida |  P\ |   180 | 16.1 |        
    1357 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1556 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1755 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1955 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2154 |      MASTER-Tavrida |  P\ |   180 | 16.0 |        
    2354 |      MASTER-Tavrida |  P\ |   180 | 15.8 |        
    2553 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2753 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    2952 |      MASTER-Tavrida |  P\ |   180 | 15.5 |        
    3152 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    3351 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    3794 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    3993 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    4193 |      MASTER-Tavrida |  P\ |   180 | 14.6 |        
    4392 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    5238 |          MASTER-IAC |   C |   180 | 17.3 |        
    5418 |          MASTER-IAC |   C |   540 | 18.2 |  Coadd 
    5238 |          MASTER-IAC |   C |   180 | 17.1 |        
    5418 |          MASTER-IAC |   C |   540 | 18.0 |  Coadd 
    5437 |          MASTER-IAC |   C |   180 | 17.7 |        
    5437 |          MASTER-IAC |   C |   180 | 17.3 |        
    5638 |          MASTER-IAC |   C |   180 | 17.9 |        
    5638 |          MASTER-IAC |   C |   180 | 17.7 |        
    5837 |          MASTER-IAC |   C |   180 | 18.4 |        
    6017 |          MASTER-IAC |   C |   540 | 19.1 |  Coadd 
    5837 |          MASTER-IAC |   C |   180 | 18.0 |        
    6017 |          MASTER-IAC |   C |   540 | 19.0 |  Coadd 
    6037 |          MASTER-IAC |   C |   180 | 18.7 |        
    6037 |          MASTER-IAC |   C |   180 | 18.3 |        
    6237 |          MASTER-IAC |   C |   180 | 18.8 |        
    6237 |          MASTER-IAC |   C |   180 | 18.6 |        
    6437 |          MASTER-IAC |   C |   180 | 19.0 |        
    6617 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    6437 |          MASTER-IAC |   C |   180 | 18.7 |        
    6617 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    6637 |          MASTER-IAC |   C |   180 | 19.1 |        
    6637 |          MASTER-IAC |   C |   180 | 18.7 |        
    6838 |          MASTER-IAC |   C |   180 | 19.1 |        
    6838 |          MASTER-IAC |   C |   180 | 18.8 |        
    7037 |          MASTER-IAC |   C |   180 | 19.0 |        
    7217 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    7037 |          MASTER-IAC |   C |   180 | 18.8 |        
    7217 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    7237 |          MASTER-IAC |   C |   180 | 19.1 |        
    7237 |          MASTER-IAC |   C |   180 | 18.8 |        
    7439 |          MASTER-IAC |   C |   180 | 19.2 |        
    7439 |          MASTER-IAC |   C |   180 | 19.0 |        
    9406 |          MASTER-IAC |   C |   180 | 19.0 |        
    9406 |          MASTER-IAC |   C |   180 | 18.8 |        
   11245 |          MASTER-IAC |   C |   180 | 18.5 |        
   11245 |          MASTER-IAC |   C |   180 | 18.3 |        
   13123 |          MASTER-IAC |   C |   180 | 17.6 |        
   13123 |          MASTER-IAC |   C |   180 | 16.8 |        
   13605 |         MASTER-OAFA |   C |   180 | 18.8 |        
   15207 |          MASTER-IAC |   C |   180 | 16.8 |        
   15480 |         MASTER-OAFA |   C |   180 | 19.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4689
TYPE = 35
DAYS = 0.1


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210726A ( M. G. Bernardini et al., GCN 30523) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210726A errorbox  5124 sec after notice time and 5147 sec after trigger time at 2021-07-26 20:44:51 UT, with upper limit up to  19.5 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -10.5 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671119

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        
     134 |      MASTER-Tavrida |  P\ |    20 | 15.1 |        
     178 |      MASTER-Tavrida |  P\ |    30 | 15.6 |        
     373 |      MASTER-Tavrida |  P\ |    50 | 15.8 |        
     452 |      MASTER-Tavrida |  P\ |    70 | 16.0 |        
     547 |      MASTER-Tavrida |  P\ |    80 | 16.2 |        
     968 |      MASTER-Tavrida |  P\ |   160 | 16.1 |        
    1157 |      MASTER-Tavrida |  P\ |   180 | 16.1 |        
    1357 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1556 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1755 |      MASTER-Tavrida |  P\ |   180 | 15.9 |        
    1955 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2154 |      MASTER-Tavrida |  P\ |   180 | 16.0 |        
    2354 |      MASTER-Tavrida |  P\ |   180 | 15.8 |        
    2553 |      MASTER-Tavrida |  P\ |   180 | 15.7 |        
    2753 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    2952 |      MASTER-Tavrida |  P\ |   180 | 15.5 |        
    3152 |      MASTER-Tavrida |  P\ |   180 | 15.4 |        
    3351 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    3794 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    3993 |      MASTER-Tavrida |  P\ |   180 | 14.7 |        
    4193 |      MASTER-Tavrida |  P\ |   180 | 14.6 |        
    4392 |      MASTER-Tavrida |  P\ |   180 | 14.1 |        
    5238 |          MASTER-IAC |   C |   180 | 17.3 |        
    5418 |          MASTER-IAC |   C |   540 | 18.2 |  Coadd 
    5238 |          MASTER-IAC |   C |   180 | 17.1 |        
    5418 |          MASTER-IAC |   C |   540 | 18.0 |  Coadd 
    5437 |          MASTER-IAC |   C |   180 | 17.7 |        
    5437 |          MASTER-IAC |   C |   180 | 17.3 |        
    5638 |          MASTER-IAC |   C |   180 | 17.9 |        
    5638 |          MASTER-IAC |   C |   180 | 17.7 |        
    5837 |          MASTER-IAC |   C |   180 | 18.4 |        
    6017 |          MASTER-IAC |   C |   540 | 19.1 |  Coadd 
    5837 |          MASTER-IAC |   C |   180 | 18.0 |        
    6017 |          MASTER-IAC |   C |   540 | 19.0 |  Coadd 
    6037 |          MASTER-IAC |   C |   180 | 18.7 |        
    6037 |          MASTER-IAC |   C |   180 | 18.3 |        
    6237 |          MASTER-IAC |   C |   180 | 18.8 |        
    6237 |          MASTER-IAC |   C |   180 | 18.6 |        
    6437 |          MASTER-IAC |   C |   180 | 19.0 |        
    6617 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    6437 |          MASTER-IAC |   C |   180 | 18.7 |        
    6617 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    6637 |          MASTER-IAC |   C |   180 | 19.1 |        
    6637 |          MASTER-IAC |   C |   180 | 18.7 |        
    6838 |          MASTER-IAC |   C |   180 | 19.1 |        
    6838 |          MASTER-IAC |   C |   180 | 18.8 |        
    7037 |          MASTER-IAC |   C |   180 | 19.0 |        
    7217 |          MASTER-IAC |   C |   540 | 19.5 |  Coadd 
    7037 |          MASTER-IAC |   C |   180 | 18.8 |        
    7217 |          MASTER-IAC |   C |   540 | 19.4 |  Coadd 
    7237 |          MASTER-IAC |   C |   180 | 19.1 |        
    7237 |          MASTER-IAC |   C |   180 | 18.8 |        
    7439 |          MASTER-IAC |   C |   180 | 19.2 |        
    7439 |          MASTER-IAC |   C |   180 | 19.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4688
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB210726.80 (trigger No 1061687,12h 53m 22.08s , +19d 11m 06.0s, R=0.05) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  15.0 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671119

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        


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



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

  ID = 4687
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB210726.80 (trigger No 1061687,12h 53m 22.08s , +19d 11m 06.0s, R=0.05) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  15.0 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671119

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        


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



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

  ID = 4686
TYPE = 34
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB210726.80 (trigger No 1061687,12h 53m 22.08s , +19d 11m 06.0s, R=0.05) errorbox  31 sec after notice time and 54 sec after trigger time at 2021-07-26 19:19:58 UT, with upper limit up to  15.0 mag. The observations began at zenith distance = 66 deg. The sun  altitude  is -18.0 deg. 

The galactic latitude b = 82 deg., longitude l = 310 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1671119

We obtain a following upper limits.  

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

      59 |      MASTER-Tavrida |  P\ |    10 | 14.1 |        
      94 |      MASTER-Tavrida |  P\ |    20 | 15.0 |        


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



 

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