MASTER Net MASTER Database: GRB210822.39 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 GRB210822.39
Trignum 1069788
Trigger time 2021-08-22 09:18:18.16
Notice time 2021-08-22 09:19:23.65949
Coord, eb (20h 17m 54.24s , +05d 15m 54.0s) , 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)

You are viewing outdated information, relevant error box is here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
2238829 2023-07-13 07:05:10.739108 20h 17m 54.24s +05d 15m 54.0s SWIFT 0.05 retraction 1069788 1 4044 retraction
1697252 2021-08-22 17:11:56.301644 20h 17m 45.12s +05d 16m 58.8s SWIFT 0.000111111 alert 1069788 4 81 alert
1697032 2021-08-22 09:20:35.968276 20h 17m 45.12s +05d 16m 44.4s SWIFT 0 alert 1069788 1 78 alert
1697031 2021-08-22 09:20:33.493682 20h 17m 45.12s +05d 16m 44.4s SWIFT 0.00169444 alert 1069788 7 69 alert
1697033 2021-08-22 09:39:00.041617 20h 17m 49.34s +05d 16m 39.0s SWIFT 0 alert 1069788 16 68 alert
1697025 2021-08-22 09:20:22.134544 20h 17m 45.12s +05d 16m 44.4s SWIFT 0.00169444 alert 1069788 7 67 alert
1697016 2021-08-22 09:19:31.99112 20h 17m 54.24s +05d 15m 54.0s SWIFT 0.05 alert 1069788 9 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

2021-08-22 09:18:18 (JD 2459448.887708)

Siderial time 9.873344 h

Ra 20:17:54.24 Dec 05:15:54.00
(304.476000d, 5.265000d)

Rise 2021-08-22 16:07:58

Transit 2021-08-22 22:42:05

Set 2021-08-22 05:20:09

Amur

Object: Altitude: 18.91 Azimuth: 285.13

Sun: Altitude: 11.16 Azimuth: 95.02

Moon: Altitude: -15.29 Azimuth: 278.18

Tunka

Object: Altitude: 3.56 Azimuth: 266.01

Sun: Altitude: 26.25 Azimuth: 74.96

Moon: Altitude: -30.51 Azimuth: 258.25

Kislovodsk

Object: Altitude: -34.65 Azimuth: 215.32

Sun: Altitude: 57.97 Azimuth: 3.09

Moon: Altitude: -63.13 Azimuth: 182.72

Tavrida

Object: Altitude: -36.88 Azimuth: 205.23

Sun: Altitude: 56.50 Azimuth: 347.81

Moon: Altitude: -61.51 Azimuth: 165.40

SAAO

Object: Altitude: -62.15 Azimuth: 345.35

Sun: Altitude: 41.89 Azimuth: 206.79

Moon: Altitude: -36.99 Azimuth: 24.71

IAC

Object: Altitude: -45.39 Azimuth: 133.97

Sun: Altitude: 34.16 Azimuth: 274.92

Moon: Altitude: -35.97 Azimuth: 89.02

Argentina

Object: Altitude: -8.44 Azimuth: 90.98

Sun: Altitude: -23.23 Azimuth: 270.30

Moon: Altitude: 26.03 Azimuth: 85.54

Mexico

Object: Altitude: 31.94 Azimuth: 75.57

Sun: Altitude: -39.06 Azimuth: 217.36

Moon: Altitude: 34.84 Azimuth: 33.65

Ural

Object: Altitude: -17.60 Azimuth: 228.22

Sun: Altitude: 42.49 Azimuth: 25.18

Moon: Altitude: -47.57 Azimuth: 206.45

Vostryakovo

Object: Altitude: -26.23 Azimuth: 206.63

Sun: Altitude: 46.31 Azimuth: 355.69

Moon: Altitude: -51.42 Azimuth: 174.74

Gal. latitude: -16.988513 Gal. longitude: 48.452268

Dist. to Sun: 148.326799

Dist. to Moon: 34.870139

Moon coord.: (331.719356 d, -16.893354 d)

Sun coord.: (151.333846 d, 11.751583 d)

Lunar disk: 0.997991

Lunar phase: 5.138405

Lunar bright limb: 175.790452

No SN in this field

2021-08-22 09:19:23 (JD 2459448.888461)

Siderial time 9.891449 h

Ra 20:17:54.24 Dec 05:15:54.00
(304.476000d, 5.265000d)

Rise 2021-08-22 16:07:58

Transit 2021-08-22 22:42:05

Set 2021-08-22 05:20:09

Amur

Object: Altitude: 19.07 Azimuth: 285.35

Sun: Altitude: 10.98 Azimuth: 95.22

Moon: Altitude: -15.12 Azimuth: 278.38

Tunka

Object: Altitude: 3.73 Azimuth: 266.23

Sun: Altitude: 26.09 Azimuth: 75.19

Moon: Altitude: -30.35 Azimuth: 258.48

Kislovodsk

Object: Altitude: -34.54 Azimuth: 215.62

Sun: Altitude: 57.96 Azimuth: 3.59

Moon: Altitude: -63.11 Azimuth: 183.28

Tavrida

Object: Altitude: -36.79 Azimuth: 205.55

Sun: Altitude: 56.54 Azimuth: 348.29

Moon: Altitude: -61.55 Azimuth: 165.91

SAAO

Object: Altitude: -62.09 Azimuth: 344.78

Sun: Altitude: 41.99 Azimuth: 206.46

Moon: Altitude: -37.08 Azimuth: 24.42

IAC

Object: Altitude: -45.56 Azimuth: 134.26

Sun: Altitude: 34.40 Azimuth: 275.07

Moon: Altitude: -36.20 Azimuth: 89.15

Argentina

Object: Altitude: -8.67 Azimuth: 90.84

Sun: Altitude: -22.99 Azimuth: 270.16

Moon: Altitude: 25.80 Azimuth: 85.42

Mexico

Object: Altitude: 31.71 Azimuth: 75.75

Sun: Altitude: -38.92 Azimuth: 217.64

Moon: Altitude: 34.72 Azimuth: 33.92

Ural

Object: Altitude: -17.49 Azimuth: 228.48

Sun: Altitude: 42.43 Azimuth: 25.53

Moon: Altitude: -47.50 Azimuth: 206.81

Vostryakovo

Object: Altitude: -26.16 Azimuth: 206.92

Sun: Altitude: 46.32 Azimuth: 356.07

Moon: Altitude: -51.43 Azimuth: 175.14

Gal. latitude: -16.988513 Gal. longitude: 48.452268

Dist. to Sun: 148.326347

Dist. to Moon: 34.875728

Moon coord.: (331.729425 d, -16.889884 d)

Sun coord.: (151.334539 d, 11.751330 d)

Lunar disk: 0.997993

Lunar phase: 5.135872

Lunar bright limb: 175.685754

No SN in this field

2021-08-22 10:19:23 (JD 2459448.930127)

Siderial time 10.894187 h

Ra 20:17:54.24 Dec 05:15:54.00
(304.476000d, 5.265000d)

Rise 2021-08-22 16:07:58

Transit 2021-08-22 22:42:05

Set 2021-08-22 05:20:09

Amur

Object: Altitude: 27.97 Azimuth: 298.52

Sun: Altitude: 1.58 Azimuth: 106.59

Moon: Altitude: -6.00 Azimuth: 289.01

Tunka

Object: Altitude: 13.01 Azimuth: 278.12

Sun: Altitude: 16.92 Azimuth: 87.55

Moon: Altitude: -21.30 Azimuth: 270.18

Kislovodsk

Object: Altitude: -27.09 Azimuth: 230.78

Sun: Altitude: 54.81 Azimuth: 29.68

Moon: Altitude: -59.74 Azimuth: 211.66

Tavrida

Object: Altitude: -30.83 Azimuth: 222.12

Sun: Altitude: 56.22 Azimuth: 14.98

Moon: Altitude: -61.26 Azimuth: 195.12

SAAO

Object: Altitude: -55.91 Azimuth: 317.99

Sun: Altitude: 45.65 Azimuth: 186.68

Moon: Altitude: -40.62 Azimuth: 7.18

IAC

Object: Altitude: -53.38 Azimuth: 154.06

Sun: Altitude: 47.41 Azimuth: 284.14

Moon: Altitude: -48.85 Azimuth: 96.91

Argentina

Object: Altitude: -21.42 Azimuth: 82.69

Sun: Altitude: -10.27 Azimuth: 262.48

Moon: Altitude: 13.53 Azimuth: 78.55

Mexico

Object: Altitude: 19.03 Azimuth: 84.59

Sun: Altitude: -29.87 Azimuth: 231.71

Moon: Altitude: 26.79 Azimuth: 47.18

Ural

Object: Altitude: -10.77 Azimuth: 242.29

Sun: Altitude: 37.77 Azimuth: 43.79

Moon: Altitude: -42.68 Azimuth: 225.28

Vostryakovo

Object: Altitude: -21.30 Azimuth: 222.41

Sun: Altitude: 45.32 Azimuth: 17.16

Moon: Altitude: -50.36 Azimuth: 197.13

Gal. latitude: -16.988513 Gal. longitude: 48.452268

Dist. to Sun: 148.301332

Dist. to Moon: 35.187982

Moon coord.: (332.286302 d, -16.697011 d)

Sun coord.: (151.372957 d, 11.737314 d)

Lunar disk: 0.998081

Lunar phase: 5.021665

Lunar bright limb: 169.749892

No SN in this field

2024-07-07 07:41:32 (JD 2460498.820509)

Siderial time 5.251467 h

Ra 20:17:54.24 Dec 05:15:54.00
(304.476000d, 5.265000d)

Rise 2024-07-07 19:07:45

Transit 2024-07-08 01:41:52

Set 2024-07-07 08:19:56

Amur

Object: Altitude: -22.68 Azimuth: 228.75

Sun: Altitude: 34.91 Azimuth: 83.78

Moon: Altitude: 47.59 Azimuth: 68.74

Tunka

Object: Altitude: -30.49 Azimuth: 202.98

Sun: Altitude: 48.95 Azimuth: 59.01

Moon: Altitude: 58.86 Azimuth: 35.40

Kislovodsk

Object: Altitude: -28.76 Azimuth: 132.08

Sun: Altitude: 61.58 Azimuth: 310.75

Moon: Altitude: 51.18 Azimuth: 286.23

Tavrida

Object: Altitude: -23.37 Azimuth: 124.67

Sun: Altitude: 56.04 Azimuth: 300.28

Moon: Altitude: 45.02 Azimuth: 279.83

SAAO

Object: Altitude: -25.93 Azimuth: 79.19

Sun: Altitude: 20.42 Azimuth: 223.87

Moon: Altitude: 7.35 Azimuth: 234.98

IAC

Object: Altitude: 11.14 Azimuth: 90.01

Sun: Altitude: 17.15 Azimuth: 253.15

Moon: Altitude: 2.91 Azimuth: 243.82

Argentina

Object: Altitude: 44.69 Azimuth: 139.94

Sun: Altitude: -49.07 Azimuth: 271.49

Moon: Altitude: -65.28 Azimuth: 280.79

Mexico

Object: Altitude: 61.18 Azimuth: 330.70

Sun: Altitude: -36.24 Azimuth: 184.71

Moon: Altitude: -32.95 Azimuth: 164.49

Ural

Object: Altitude: -24.76 Azimuth: 153.76

Sun: Altitude: 55.25 Azimuth: 350.31

Moon: Altitude: 52.89 Azimuth: 321.52

Vostryakovo

Object: Altitude: -18.72 Azimuth: 131.40

Sun: Altitude: 51.29 Azimuth: 316.66

Moon: Altitude: 44.29 Azimuth: 293.56

Gal. latitude: -16.988513 Gal. longitude: 48.452268

Dist. to Sun: 147.167297

Dist. to Moon: 150.392355

Moon coord.: (125.025740 d, 24.337801 d)

Sun coord.: (106.660200 d, 22.562761 d)

Lunar disk: 0.021778

Lunar phase: 163.027496

Lunar bright limb: 268.024038

No SN in this field
Recent coverage and limits telegrams

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

  ID = 4857
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 210822A ( K. L. Page et al., GCN 30677) errorbox  27300 sec after notice time and 27365 sec after trigger time at 2021-08-22 16:54:24 UT, with upper limit up to  17.7 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -8.8 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210822A errorbox  28318 sec after notice time and 28384 sec after trigger time at 2021-08-22 17:11:22 UT, with upper limit up to  17.1 mag. Observations started at twilight.  The observations began at zenith distance = 48 deg. The sun  altitude  is -12.4 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210822A errorbox  31405 sec after notice time and 31471 sec after trigger time at 2021-08-22 18:02:49 UT, with upper limit up to  16.8 mag. Observations started at twilight.  The observations began at zenith distance = 46 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -17 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697012

We obtain a following upper limits.  

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

   27456 |         MASTER-SAAO |   C |   180 | 16.2 |        
   27818 |         MASTER-SAAO |   C |   180 | 17.0 |        
   28474 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
   28474 |   MASTER-Kislovodsk |  P| |   180 | 16.6 |        
   28654 |   MASTER-Kislovodsk |  P| |   540 | 17.1 |  Coadd 
   28486 |         MASTER-SAAO | P\  |   180 | 16.2 |        
   28666 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   28675 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
   28675 |   MASTER-Kislovodsk |  P| |   180 | 16.5 |        
   28686 |         MASTER-SAAO | P\  |   180 | 16.3 |        
   28875 |   MASTER-Kislovodsk |  P- |   180 | 15.9 |        
   28875 |   MASTER-Kislovodsk |  P| |   180 | 16.3 |        
   28885 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   29076 |   MASTER-Kislovodsk |  P- |   180 | 16.1 |        
   29085 |         MASTER-SAAO | P\  |   180 | 16.3 |        
   29265 |         MASTER-SAAO | P\  |   540 | 16.7 |  Coadd 
   29276 |   MASTER-Kislovodsk |  P- |   180 | 15.5 |        
   29276 |   MASTER-Kislovodsk |  P| |   180 | 15.7 |        
   29284 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   29476 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29476 |   MASTER-Kislovodsk |  P| |   180 | 15.4 |        
   29484 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   29677 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29677 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   29683 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   29863 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   29877 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29877 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   29882 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   30077 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   30077 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30082 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30278 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   30278 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30281 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30461 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   30478 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   30478 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   30481 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   30679 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   30679 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30680 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30879 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   30879 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
   30880 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   31060 |         MASTER-SAAO | P\  |   540 | 16.7 |  Coadd 
   31079 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
   31079 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   31080 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   31279 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   31280 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   31280 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   31478 |         MASTER-SAAO | P\  |   180 | 16.2 |        
   31480 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
   31480 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   31561 |      MASTER-Tavrida |   C |   180 | 16.8 |        
   31681 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   31681 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   31881 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   32061 |   MASTER-Kislovodsk |  P| |   540 | 15.6 |  Coadd 
   31881 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   32082 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   32282 |   MASTER-Kislovodsk |  P- |   180 | 14.7 |        
   32282 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   32483 |   MASTER-Kislovodsk |  P- |   180 | 14.1 |        
   32483 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
   32663 |   MASTER-Kislovodsk |  P| |   540 | 15.9 |  Coadd 
   32683 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   32683 |   MASTER-Kislovodsk |  P| |   180 | 15.9 |        
   32883 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
   32884 |   MASTER-Kislovodsk |  P| |   180 | 15.5 |        
   33084 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   33084 |   MASTER-Kislovodsk |  P| |   180 | 15.8 |        
   33284 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   33284 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   33485 |   MASTER-Kislovodsk |  P- |   180 | 14.6 |        
   33485 |   MASTER-Kislovodsk |  P| |   180 | 14.8 |        
   33685 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   33685 |   MASTER-Kislovodsk |  P| |   180 | 15.1 |        
   33886 |   MASTER-Kislovodsk |  P- |   180 | 15.6 |        
   33886 |   MASTER-Kislovodsk |  P| |   180 | 16.1 |        
   34066 |   MASTER-Kislovodsk |  P| |   540 | 16.8 |  Coadd 
   34086 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34086 |   MASTER-Kislovodsk |  P| |   180 | 16.2 |        
   34287 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34287 |   MASTER-Kislovodsk |  P| |   180 | 16.4 |        
   34414 |      MASTER-Tavrida |   C |   180 | 16.0 |        
   34487 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34487 |   MASTER-Kislovodsk |  P| |   180 | 16.4 |        
   34667 |   MASTER-Kislovodsk |  P| |   540 | 16.1 |  Coadd 
   34636 |         MASTER-SAAO |   C |   180 | 17.7 |        
   34688 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   34888 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
   35544 |      MASTER-Tavrida |   C |   180 | 16.3 |        
   39754 |   MASTER-Kislovodsk |   C |   180 | 15.5 |        
   39754 |   MASTER-Kislovodsk |   C |   180 | 16.2 |        
   40034 |   MASTER-Kislovodsk |   C |   180 | 15.6 |        
   40034 |   MASTER-Kislovodsk |   C |   180 | 16.3 |        
   41722 |         MASTER-SAAO |   C |   180 | 15.8 |        
   41922 |         MASTER-SAAO |   C |   180 | 15.0 |        
   42121 |         MASTER-SAAO |   C |   180 | 16.0 |        
   42624 |         MASTER-SAAO |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4851
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 210822A ( K. L. Page et al., GCN 30677) errorbox  27300 sec after notice time and 27365 sec after trigger time at 2021-08-22 16:54:24 UT, with upper limit up to  17.7 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -8.8 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210822A errorbox  28318 sec after notice time and 28384 sec after trigger time at 2021-08-22 17:11:22 UT, with upper limit up to  17.1 mag. Observations started at twilight.  The observations began at zenith distance = 48 deg. The sun  altitude  is -12.4 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210822A errorbox  31405 sec after notice time and 31471 sec after trigger time at 2021-08-22 18:02:49 UT, with upper limit up to  16.8 mag. Observations started at twilight.  The observations began at zenith distance = 46 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -17 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697012

We obtain a following upper limits.  

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

   27456 |         MASTER-SAAO |   C |   180 | 16.2 |        
   27818 |         MASTER-SAAO |   C |   180 | 17.0 |        
   28474 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
   28474 |   MASTER-Kislovodsk |  P| |   180 | 16.6 |        
   28654 |   MASTER-Kislovodsk |  P| |   540 | 17.1 |  Coadd 
   28486 |         MASTER-SAAO | P\  |   180 | 16.2 |        
   28666 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   28675 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
   28675 |   MASTER-Kislovodsk |  P| |   180 | 16.5 |        
   28686 |         MASTER-SAAO | P\  |   180 | 16.3 |        
   28875 |   MASTER-Kislovodsk |  P- |   180 | 15.9 |        
   28875 |   MASTER-Kislovodsk |  P| |   180 | 16.3 |        
   28885 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   29076 |   MASTER-Kislovodsk |  P- |   180 | 16.1 |        
   29085 |         MASTER-SAAO | P\  |   180 | 16.3 |        
   29265 |         MASTER-SAAO | P\  |   540 | 16.7 |  Coadd 
   29276 |   MASTER-Kislovodsk |  P- |   180 | 15.5 |        
   29276 |   MASTER-Kislovodsk |  P| |   180 | 15.7 |        
   29284 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   29476 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29476 |   MASTER-Kislovodsk |  P| |   180 | 15.4 |        
   29484 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   29677 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29677 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   29683 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   29863 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   29877 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   29877 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   29882 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   30077 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   30077 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30082 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30278 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   30278 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30281 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30461 |         MASTER-SAAO | P\  |   540 | 16.6 |  Coadd 
   30478 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   30478 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   30481 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   30679 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   30679 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   30680 |         MASTER-SAAO | P\  |   180 | 16.4 |        
   30879 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   30879 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
   30880 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   31060 |         MASTER-SAAO | P\  |   540 | 16.7 |  Coadd 
   31079 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
   31079 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   31080 |         MASTER-SAAO | P\  |   180 | 16.5 |        
   31279 |         MASTER-SAAO | P\  |   180 | 16.6 |        
   31280 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   31280 |   MASTER-Kislovodsk |  P- |   180 | 15.3 |        
   31478 |         MASTER-SAAO | P\  |   180 | 16.2 |        
   31480 |   MASTER-Kislovodsk |  P- |   180 | 15.0 |        
   31480 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   31561 |      MASTER-Tavrida |   C |   180 | 16.8 |        
   31681 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   31681 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   31881 |   MASTER-Kislovodsk |  P| |   180 | 15.3 |        
   32061 |   MASTER-Kislovodsk |  P| |   540 | 15.6 |  Coadd 
   31881 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   32082 |   MASTER-Kislovodsk |  P| |   180 | 14.9 |        
   32282 |   MASTER-Kislovodsk |  P- |   180 | 14.7 |        
   32282 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   32483 |   MASTER-Kislovodsk |  P- |   180 | 14.1 |        
   32483 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
   32663 |   MASTER-Kislovodsk |  P| |   540 | 15.9 |  Coadd 
   32683 |   MASTER-Kislovodsk |  P- |   180 | 15.4 |        
   32683 |   MASTER-Kislovodsk |  P| |   180 | 15.9 |        
   32883 |   MASTER-Kislovodsk |  P- |   180 | 15.1 |        
   32884 |   MASTER-Kislovodsk |  P| |   180 | 15.5 |        
   33084 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   33084 |   MASTER-Kislovodsk |  P| |   180 | 15.8 |        
   33284 |   MASTER-Kislovodsk |  P- |   180 | 14.9 |        
   33284 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   33485 |   MASTER-Kislovodsk |  P- |   180 | 14.6 |        
   33485 |   MASTER-Kislovodsk |  P| |   180 | 14.8 |        
   33685 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   33685 |   MASTER-Kislovodsk |  P| |   180 | 15.1 |        
   33886 |   MASTER-Kislovodsk |  P- |   180 | 15.6 |        
   33886 |   MASTER-Kislovodsk |  P| |   180 | 16.1 |        
   34066 |   MASTER-Kislovodsk |  P| |   540 | 16.8 |  Coadd 
   34086 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34086 |   MASTER-Kislovodsk |  P| |   180 | 16.2 |        
   34287 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34287 |   MASTER-Kislovodsk |  P| |   180 | 16.4 |        
   34414 |      MASTER-Tavrida |   C |   180 | 16.0 |        
   34487 |   MASTER-Kislovodsk |  P- |   180 | 15.7 |        
   34487 |   MASTER-Kislovodsk |  P| |   180 | 16.4 |        
   34667 |   MASTER-Kislovodsk |  P| |   540 | 16.1 |  Coadd 
   34636 |         MASTER-SAAO |   C |   180 | 17.7 |        
   34688 |   MASTER-Kislovodsk |  P| |   180 | 15.2 |        
   34888 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
   35544 |      MASTER-Tavrida |   C |   180 | 16.3 |        
   39754 |   MASTER-Kislovodsk |   C |   180 | 15.5 |        
   39754 |   MASTER-Kislovodsk |   C |   180 | 16.2 |        
   40034 |   MASTER-Kislovodsk |   C |   180 | 15.6 |        
   40034 |   MASTER-Kislovodsk |   C |   180 | 16.3 |        
   41722 |         MASTER-SAAO |   C |   180 | 15.8 |        
   41922 |         MASTER-SAAO |   C |   180 | 15.0 |        
   42121 |         MASTER-SAAO |   C |   180 | 16.0 |        
   42624 |         MASTER-SAAO |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4846
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 GRB 210822A ( K. L. Page et al., GCN 30677) errorbox  27300 sec after notice time and 27365 sec after trigger time at 2021-08-22 16:54:24 UT, with upper limit up to  16.2 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -8.8 deg. 

The galactic latitude b = -17 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697012

We obtain a following upper limits.  

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

   27456 |         MASTER-SAAO |   C |   180 | 16.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4845
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 GRB 210822A ( K. L. Page et al., GCN 30677) errorbox  27300 sec after notice time and 27365 sec after trigger time at 2021-08-22 16:54:24 UT, with upper limit up to  16.2 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -8.8 deg. 

The galactic latitude b = -17 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697012

We obtain a following upper limits.  

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

   27456 |         MASTER-SAAO |   C |   180 | 16.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4844
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 GRB 210822A ( K. L. Page et al., GCN 30677) errorbox  27300 sec after notice time and 27365 sec after trigger time at 2021-08-22 16:54:24 UT, with upper limit up to  16.2 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -8.8 deg. 

The galactic latitude b = -17 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697012

We obtain a following upper limits.  

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

   27456 |         MASTER-SAAO |   C |   180 | 16.2 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024