MASTER Net MASTER Database: GRB220421.35 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 FERMI GRB220421.35
Trignum 672221879
Trigger time 2022-04-21 08:17:54.53
Notice time 2022-04-21 12:42:01.088282
Coord, eb (04h 57m 40.80s , +23d 08m 24.0s) , 2.09
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
1950247 2022-04-21 12:42:01.088282 04h 57m 40.80s +23d 08m 24.0s FERMI 2.09 alert 672221879 42 115 alert

DAYS:

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

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

2022-04-21 08:17:54 (JD 2459690.845764)

Siderial time 0.765699 h

Ra 04:57:40.80 Dec 23:08:24.00
( 74.420000d, 23.140000d)

Rise 2022-04-21 06:49:10

Transit 2022-04-21 15:28:57

Set 2022-04-22 00:08:42

Amur

Object: Altitude: 55.68 Azimuth: 47.62

Sun: Altitude: 20.15 Azimuth: 84.18

Moon: Altitude: -65.56 Azimuth: 199.10

Tunka

Object: Altitude: 61.27 Azimuth: 4.81

Sun: Altitude: 34.36 Azimuth: 62.05

Moon: Altitude: -62.34 Azimuth: 148.67

Kislovodsk

Object: Altitude: 38.57 Azimuth: 273.87

Sun: Altitude: 56.31 Azimuth: 337.76

Moon: Altitude: -27.73 Azimuth: 78.34

Tavrida

Object: Altitude: 32.46 Azimuth: 268.54

Sun: Altitude: 52.52 Azimuth: 324.99

Moon: Altitude: -22.06 Azimuth: 73.53

SAAO

Object: Altitude: -4.14 Azimuth: 245.12

Sun: Altitude: 35.11 Azimuth: 222.13

Moon: Altitude: 20.22 Azimuth: 70.40

IAC

Object: Altitude: -10.49 Azimuth: 236.39

Sun: Altitude: 21.81 Azimuth: 268.02

Moon: Altitude: 20.15 Azimuth: 42.00

Argentina

Object: Altitude: -77.54 Azimuth: 311.52

Sun: Altitude: -35.15 Azimuth: 278.19

Moon: Altitude: 81.36 Azimuth: 236.69

Mexico

Object: Altitude: -28.23 Azimuth: 147.55

Sun: Altitude: -44.89 Azimuth: 200.53

Moon: Altitude: 15.52 Azimuth: 315.52

Ural

Object: Altitude: 45.01 Azimuth: 301.40

Sun: Altitude: 44.62 Azimuth: 6.37

Moon: Altitude: -38.82 Azimuth: 100.20

Vostryakovo

Object: Altitude: 34.24 Azimuth: 278.58

Sun: Altitude: 44.41 Azimuth: 336.24

Moon: Altitude: -26.80 Azimuth: 80.94

Gal. latitude: -11.553435 Gal. longitude: 179.099432

Dist. to Sun: 44.793880

Dist. to Moon: 163.113850

Moon coord.: (272.622619 d, -26.804245 d)

Sun coord.: (28.778597 d, 11.793388 d)

Lunar disk: 0.739652

Lunar phase: 61.360035

Lunar bright limb: 90.776056

No SN in this field

2022-04-21 12:42:01 (JD 2459691.029178)

Siderial time 5.179696 h

Ra 04:57:40.80 Dec 23:08:24.00
( 74.420000d, 23.140000d)

Rise 2022-04-22 06:45:14

Transit 2022-04-22 15:25:01

Set 2022-04-23 00:04:46

Amur

Object: Altitude: 15.68 Azimuth: 107.51

Sun: Altitude: -18.10 Azimuth: 137.10

Moon: Altitude: -31.63 Azimuth: 275.17

Tunka

Object: Altitude: 31.01 Azimuth: 88.71

Sun: Altitude: -4.96 Azimuth: 116.35

Moon: Altitude: -46.70 Azimuth: 253.65

Kislovodsk

Object: Altitude: 68.32 Azimuth: 20.74

Sun: Altitude: 34.13 Azimuth: 72.23

Moon: Altitude: -70.16 Azimuth: 143.81

Tavrida

Object: Altitude: 68.41 Azimuth: 359.19

Sun: Altitude: 39.42 Azimuth: 63.90

Moon: Altitude: -65.23 Azimuth: 128.77

SAAO

Object: Altitude: 32.99 Azimuth: 194.86

Sun: Altitude: 36.25 Azimuth: 140.06

Moon: Altitude: -22.13 Azimuth: 33.23

IAC

Object: Altitude: 44.22 Azimuth: 264.33

Sun: Altitude: 72.80 Azimuth: 341.91

Moon: Altitude: -27.19 Azimuth: 72.47

Argentina

Object: Altitude: -23.07 Azimuth: 256.20

Sun: Altitude: 19.27 Azimuth: 241.78

Moon: Altitude: 42.17 Azimuth: 80.98

Mexico

Object: Altitude: -26.13 Azimuth: 216.26

Sun: Altitude: -1.66 Azimuth: 255.09

Moon: Altitude: 30.49 Azimuth: 14.61

Ural

Object: Altitude: 51.48 Azimuth: 38.95

Sun: Altitude: 20.40 Azimuth: 80.17

Moon: Altitude: -59.74 Azimuth: 187.15

Vostryakovo

Object: Altitude: 57.66 Azimuth: 5.97

Sun: Altitude: 32.30 Azimuth: 60.80

Moon: Altitude: -58.77 Azimuth: 148.48

Gal. latitude: -11.553435 Gal. longitude: 179.099432

Dist. to Sun: 44.614946

Dist. to Moon: 160.480710

Moon coord.: (275.583936 d, -26.910786 d)

Sun coord.: (28.949968 d, 11.855732 d)

Lunar disk: 0.720595

Lunar phase: 63.820224

Lunar bright limb: 89.502913

No SN in this field

2022-04-21 13:42:01 (JD 2459691.070845)

Siderial time 6.182433 h

Ra 04:57:40.80 Dec 23:08:24.00
( 74.420000d, 23.140000d)

Rise 2022-04-22 06:45:14

Transit 2022-04-22 15:25:01

Set 2022-04-23 00:04:46

Amur

Object: Altitude: 6.85 Azimuth: 118.37

Sun: Altitude: -23.67 Azimuth: 151.65

Moon: Altitude: -22.63 Azimuth: 285.42

Tunka

Object: Altitude: 21.75 Azimuth: 100.20

Sun: Altitude: -12.75 Azimuth: 128.96

Moon: Altitude: -37.98 Azimuth: 266.38

Kislovodsk

Object: Altitude: 61.91 Azimuth: 50.35

Sun: Altitude: 23.55 Azimuth: 83.88

Moon: Altitude: -73.14 Azimuth: 184.26

Tavrida

Object: Altitude: 65.29 Azimuth: 33.97

Sun: Altitude: 29.40 Azimuth: 76.95

Moon: Altitude: -71.30 Azimuth: 159.83

SAAO

Object: Altitude: 34.46 Azimuth: 178.32

Sun: Altitude: 27.01 Azimuth: 126.63

Moon: Altitude: -27.62 Azimuth: 20.46

IAC

Object: Altitude: 57.45 Azimuth: 270.80

Sun: Altitude: 71.27 Azimuth: 30.62

Moon: Altitude: -39.40 Azimuth: 77.10

Argentina

Object: Altitude: -10.86 Azimuth: 249.40

Sun: Altitude: 29.86 Azimuth: 230.57

Moon: Altitude: 30.24 Azimuth: 75.21

Mexico

Object: Altitude: -17.48 Azimuth: 227.89

Sun: Altitude: 10.95 Azimuth: 262.64

Moon: Altitude: 25.96 Azimuth: 28.22

Ural

Object: Altitude: 45.37 Azimuth: 57.73

Sun: Altitude: 12.28 Azimuth: 92.93

Moon: Altitude: -57.17 Azimuth: 211.28

Vostryakovo

Object: Altitude: 54.96 Azimuth: 30.56

Sun: Altitude: 24.43 Azimuth: 74.91

Moon: Altitude: -61.44 Azimuth: 173.78

Gal. latitude: -11.553435 Gal. longitude: 179.099432

Dist. to Sun: 44.574299

Dist. to Moon: 159.882933

Moon coord.: (276.256453 d, -26.926362 d)

Sun coord.: (28.988907 d, 11.869880 d)

Lunar disk: 0.716213

Lunar phase: 64.378378

Lunar bright limb: 89.212261

No SN in this field

2024-12-08 18:43:31 (JD 2460653.280220)

Siderial time 2.434043 h

Ra 04:57:40.80 Dec 23:08:24.00
( 74.420000d, 23.140000d)

Rise 2024-12-09 15:31:02

Transit 2024-12-10 00:10:48

Set 2024-12-09 08:54:31

Amur

Object: Altitude: 41.63 Azimuth: 75.65

Sun: Altitude: -42.16 Azimuth: 254.17

Moon: Altitude: -32.42 Azimuth: 125.57

Tunka

Object: Altitude: 54.39 Azimuth: 46.90

Sun: Altitude: -54.65 Azimuth: 224.84

Moon: Altitude: -17.93 Azimuth: 104.06

Kislovodsk

Object: Altitude: 55.98 Azimuth: 296.46

Sun: Altitude: -54.91 Azimuth: 115.43

Moon: Altitude: 22.32 Azimuth: 57.22

Tavrida

Object: Altitude: 49.97 Azimuth: 288.63

Sun: Altitude: -48.88 Azimuth: 107.79

Moon: Altitude: 26.62 Azimuth: 49.26

SAAO

Object: Altitude: 13.77 Azimuth: 230.61

Sun: Altitude: -13.18 Azimuth: 51.71

Moon: Altitude: 51.54 Azimuth: 127.57

IAC

Object: Altitude: 9.06 Azimuth: 248.53

Sun: Altitude: -7.86 Azimuth: 68.29

Moon: Altitude: 55.22 Azimuth: 346.62

Argentina

Object: Altitude: -57.79 Azimuth: 276.71

Sun: Altitude: 58.73 Azimuth: 98.21

Moon: Altitude: 28.00 Azimuth: 258.61

Mexico

Object: Altitude: -35.51 Azimuth: 173.32

Sun: Altitude: 35.71 Azimuth: 351.83

Moon: Altitude: -12.77 Azimuth: 268.98

Ural

Object: Altitude: 54.16 Azimuth: 334.37

Sun: Altitude: -53.52 Azimuth: 152.60

Moon: Altitude: 6.65 Azimuth: 68.69

Vostryakovo

Object: Altitude: 47.45 Azimuth: 303.71

Sun: Altitude: -46.54 Azimuth: 122.50

Moon: Altitude: 17.83 Azimuth: 49.52

Gal. latitude: -11.553435 Gal. longitude: 179.099432

Dist. to Sun: 178.776177

Dist. to Moon: 87.126858

Moon coord.: (350.007402 d, -5.690378 d)

Sun coord.: (255.695394 d, -22.795317 d)

Lunar disk: 0.516552

Lunar phase: 88.102981

Lunar bright limb: 246.879097

No SN in this field
Recent coverage and limits telegrams

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

  ID = 6107
TYPE = 35
DAYS = 2


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) started inspect of the FERMI GRB220421.35 (trigger No 672221879,04h 57m 40.80s , +23d 08m 24.0s, R=2.09) errorbox  16459 sec after notice time and 32297 sec after trigger time at 2022-04-21 17:16:12 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -14.4 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB220421.35 errorbox  38132 sec after notice time and 53970 sec after trigger time at 2022-04-21 23:17:25 UT, with upper limit up to  16.1 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -15.5 deg. 

MASTER-OAGH robotic telescope  located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the FERMI GRB220421.35 errorbox  56537 sec after notice time and 72375 sec after trigger time at 2022-04-22 04:24:10 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 80 deg. The sun  altitude  is -30.1 deg. 

The galactic latitude b = -12 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1950247

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32328 | 2022-04-21 17:16:12 |         MASTER-SAAO | (04h 55m 32.93s , +23d 59m 04.1s) |   C |    60 | 15.1 |        
   32407 | 2022-04-21 17:17:31 |         MASTER-SAAO | (05h 04m 15.50s , +24d 00m 52.6s) |   C |    60 | 15.4 |        
   33239 | 2022-04-21 17:31:23 |         MASTER-SAAO | (05h 09m 08.86s , +25d 54m 24.7s) |   C |    60 | 15.2 |        
   33413 | 2022-04-21 17:34:17 |         MASTER-SAAO | (05h 04m 26.29s , +24d 01m 23.3s) |   C |    60 | 14.1 |        
   33492 | 2022-04-21 17:35:36 |         MASTER-SAAO | (05h 00m 15.90s , +22d 07m 05.2s) |   C |    60 | 13.8 |        
   54001 | 2022-04-21 23:17:25 |         MASTER-OAFA | (04h 53m 17.21s , +23d 15m 08.9s) |   C |    60 | 15.4 |        
   54080 | 2022-04-21 23:18:44 |         MASTER-OAFA | (05h 02m 02.83s , +23d 16m 36.6s) |   C |    60 | 15.4 |        
   54160 | 2022-04-21 23:20:04 |         MASTER-OAFA | (04h 49m 08.74s , +21d 19m 59.7s) |   C |    60 | 15.7 |        
   54243 | 2022-04-21 23:21:27 |         MASTER-OAFA | (04h 57m 53.59s , +21d 20m 27.0s) |   C |    60 | 15.9 |        
   54487 | 2022-04-21 23:25:31 |         MASTER-OAFA | (04h 57m 51.31s , +25d 10m 03.2s) |   C |    60 | 15.4 |        
   54566 | 2022-04-21 23:26:50 |         MASTER-OAFA | (05h 06m 50.47s , +25d 09m 32.8s) |   C |    60 | 15.5 |        
   54646 | 2022-04-21 23:28:10 |         MASTER-OAFA | (05h 05m 39.31s , +21d 20m 54.9s) |   C |    60 | 16.1 |        
   55086 | 2022-04-21 23:35:30 |         MASTER-OAFA | (05h 02m 08.90s , +23d 15m 11.8s) |   C |    60 | 15.3 |        
   55167 | 2022-04-21 23:36:51 |         MASTER-OAFA | (04h 57m 52.83s , +21d 20m 21.2s) |   C |    60 | 15.8 |        
   55489 | 2022-04-21 23:42:13 |         MASTER-OAFA | (04h 54m 04.18s , +19d 26m 55.1s) |   C |    60 | 15.5 |        
   55569 | 2022-04-21 23:43:33 |         MASTER-OAFA | (05h 05m 39.87s , +21d 20m 43.4s) |   C |    60 | 15.6 |        
   55648 | 2022-04-21 23:44:52 |         MASTER-OAFA | (05h 01m 42.26s , +19d 26m 48.2s) |   C |    60 | 15.7 |        
   72406 | 2022-04-22 04:24:10 |         MASTER-OAGH | (04h 55m 30.89s , +23d 58m 54.2s) |   C |    60 | 17.5 |        
   72406 | 2022-04-22 04:24:10 |         MASTER-OAGH | (04h 54m 45.56s , +24d 27m 10.2s) |   C |    60 | 17.9 |        
   72488 | 2022-04-22 04:25:32 |         MASTER-OAGH | (05h 04m 09.09s , +23d 57m 50.4s) |   C |    60 | 17.0 |        
   72488 | 2022-04-22 04:25:32 |         MASTER-OAGH | (05h 03m 24.21s , +24d 26m 05.6s) |   C |    60 | 17.3 |        
   72570 | 2022-04-22 04:26:54 |         MASTER-OAGH | (05h 00m 02.06s , +25d 53m 18.5s) |   C |    60 | 17.3 |        
   72570 | 2022-04-22 04:26:54 |         MASTER-OAGH | (04h 59m 16.36s , +26d 21m 34.8s) |   C |    60 | 17.8 |        
   72651 | 2022-04-22 04:28:15 |         MASTER-OAGH | (05h 08m 54.44s , +25d 52m 02.3s) |   C |    60 | 17.6 |        
   72651 | 2022-04-22 04:28:15 |         MASTER-OAGH | (05h 08m 09.26s , +26d 20m 17.5s) |   C |    60 | 17.7 |        
   72732 | 2022-04-22 04:29:36 |         MASTER-OAGH | (05h 07m 39.43s , +22d 04m 44.9s) |   C |    60 | 17.1 |        
   72732 | 2022-04-22 04:29:36 |         MASTER-OAGH | (05h 06m 54.84s , +22d 33m 01.3s) |   C |    60 | 17.4 |        
   72895 | 2022-04-22 04:32:19 |         MASTER-OAGH | (05h 12m 00.88s , +23d 57m 44.2s) |   C |    60 | 17.1 |        
   72895 | 2022-04-22 04:32:19 |         MASTER-OAGH | (05h 11m 16.01s , +24d 25m 58.5s) |   C |    60 | 17.4 |        
   73597 | 2022-04-22 04:44:01 |         MASTER-OAGH | (05h 08m 52.63s , +25d 53m 44.0s) |   C |    60 | 17.9 |        
   73597 | 2022-04-22 04:44:01 |         MASTER-OAGH | (05h 08m 06.14s , +26d 21m 55.2s) |   C |    60 | 17.7 |        
  140088 | 2022-04-22 23:12:12 |         MASTER-OAFA | (04h 45m 18.34s , +23d 13m 32.4s) |   C |    60 | 14.5 |        
  140807 | 2022-04-22 23:24:11 |         MASTER-OAFA | (04h 53m 10.77s , +23d 14m 40.9s) |   C |    60 | 15.0 |        
  140886 | 2022-04-22 23:25:30 |         MASTER-OAFA | (05h 01m 56.36s , +23d 16m 09.9s) |   C |    60 | 15.3 |        
  141045 | 2022-04-22 23:28:09 |         MASTER-OAFA | (04h 57m 44.70s , +21d 21m 33.4s) |   C |    60 | 15.8 |        
  141204 | 2022-04-22 23:30:48 |         MASTER-OAFA | (05h 06m 38.86s , +25d 10m 11.3s) |   C |    60 | 15.2 |        
  141291 | 2022-04-22 23:32:15 |         MASTER-OAFA | (05h 05m 27.80s , +21d 20m 23.2s) |   C |    60 | 15.8 |        
  142145 | 2022-04-22 23:46:29 |         MASTER-OAFA | (05h 01m 34.44s , +19d 26m 59.1s) |   C |    60 | 13.9 |        
  152552 | 2022-04-23 02:39:57 |         MASTER-OAGH | (04h 59m 52.29s , +22d 04m 23.9s) |   C |    60 | 13.1 |        
  152552 | 2022-04-23 02:39:57 |         MASTER-OAGH | (04h 59m 14.14s , +22d 32m 10.8s) |   C |    60 | 14.4 |        
  152773 | 2022-04-23 02:43:37 |         MASTER-OAGH | (04h 47m 30.46s , +20d 10m 44.6s) |   C |    60 | 14.6 |        
  152773 | 2022-04-23 02:43:37 |         MASTER-OAGH | (04h 46m 51.37s , +20d 38m 33.7s) |   C |    60 | 15.5 |        
  152900 | 2022-04-23 02:45:44 |         MASTER-OAGH | (04h 55m 25.70s , +20d 39m 49.0s) |   C |    60 | 14.8 |        
  153412 | 2022-04-23 02:54:16 |         MASTER-OAGH | (04h 47m 24.29s , +23d 58m 30.7s) |   C |    60 | 14.4 |        
  153412 | 2022-04-23 02:54:16 |         MASTER-OAGH | (04h 46m 44.46s , +24d 26m 04.1s) |   C |    60 | 13.8 |        
  153633 | 2022-04-23 02:57:57 |         MASTER-OAGH | (04h 51m 16.53s , +22d 04m 38.1s) |   C |    60 | 13.2 |        
  153633 | 2022-04-23 02:57:57 |         MASTER-OAGH | (04h 50m 36.92s , +22d 32m 19.4s) |   C |    60 | 14.3 |        
  153789 | 2022-04-23 03:00:33 |         MASTER-OAGH | (04h 59m 49.87s , +22d 06m 20.0s) |   C |    60 | 15.6 |        
  153789 | 2022-04-23 03:00:33 |         MASTER-OAGH | (04h 59m 10.48s , +22d 33m 59.2s) |   C |    60 | 16.6 |        
  154018 | 2022-04-23 03:04:22 |         MASTER-OAGH | (04h 47m 32.20s , +20d 10m 34.8s) |   C |    60 | 14.8 |        
  154018 | 2022-04-23 03:04:22 |         MASTER-OAGH | (04h 46m 52.02s , +20d 38m 13.6s) |   C |    60 | 15.9 |        
  154227 | 2022-04-23 03:07:51 |         MASTER-OAGH | (04h 56m 05.41s , +20d 12m 03.6s) |   C |    60 | 15.4 |        
  154227 | 2022-04-23 03:07:51 |         MASTER-OAGH | (04h 55m 25.45s , +20d 39m 41.2s) |   C |    60 | 16.5 |        
  154683 | 2022-04-23 03:15:28 |         MASTER-OAGH | (04h 47m 31.51s , +23d 59m 21.6s) |   C |    60 | 17.9 |        
  154683 | 2022-04-23 03:15:28 |         MASTER-OAGH | (04h 46m 50.06s , +24d 26m 58.7s) |   C |    60 | 18.1 |        
  154765 | 2022-04-23 03:16:49 |         MASTER-OAGH | (04h 51m 10.90s , +22d 04m 25.1s) |   C |    60 | 16.6 |        
  154765 | 2022-04-23 03:16:49 |         MASTER-OAGH | (04h 50m 29.89s , +22d 32m 02.5s) |   C |    60 | 17.2 |        
  154846 | 2022-04-23 03:18:10 |         MASTER-OAGH | (04h 59m 55.21s , +22d 04m 44.3s) |   C |    60 | 15.7 |        
  154846 | 2022-04-23 03:18:10 |         MASTER-OAGH | (04h 59m 14.76s , +22d 32m 20.1s) |   C |    60 | 15.6 |        
  154940 | 2022-04-23 03:19:44 |         MASTER-OAGH | (04h 47m 32.95s , +20d 12m 04.9s) |   C |    60 | 16.9 |        
  154940 | 2022-04-23 03:19:44 |         MASTER-OAGH | (04h 46m 51.63s , +20d 39m 45.8s) |   C |    60 | 17.5 |        
  155041 | 2022-04-23 03:21:25 |         MASTER-OAGH | (04h 56m 03.33s , +20d 10m 30.0s) |   C |    60 | 16.8 |        
  155041 | 2022-04-23 03:21:25 |         MASTER-OAGH | (04h 55m 22.69s , +20d 38m 09.9s) |   C |    60 | 15.0 |        
  155258 | 2022-04-23 03:25:02 |         MASTER-OAGH | (04h 51m 54.99s , +25d 54m 22.7s) |   C |    60 | 15.9 |        
  155258 | 2022-04-23 03:25:02 |         MASTER-OAGH | (04h 51m 12.72s , +26d 21m 57.3s) |   C |    60 | 16.7 |        
  155700 | 2022-04-23 03:32:24 |         MASTER-OAGH | (04h 47m 28.83s , +23d 58m 22.5s) |   C |    60 | 15.9 |        
  155700 | 2022-04-23 03:32:24 |         MASTER-OAGH | (04h 46m 46.12s , +24d 26m 01.5s) |   C |    60 | 17.0 |        
  155923 | 2022-04-23 03:36:07 |         MASTER-OAGH | (05h 03m 44.22s , +20d 11m 59.4s) |   C |    60 | 15.7 |        
  155923 | 2022-04-23 03:36:07 |         MASTER-OAGH | (05h 03m 02.98s , +20d 39m 40.0s) |   C |    60 | 16.7 |        
  156118 | 2022-04-23 03:39:22 |         MASTER-OAGH | (05h 11m 34.99s , +20d 38m 20.4s) |   C |    60 | 16.5 |        
  156376 | 2022-04-23 03:43:40 |         MASTER-OAGH | (04h 51m 56.54s , +25d 53m 19.3s) |   C |    60 | 17.5 |        
  156376 | 2022-04-23 03:43:40 |         MASTER-OAGH | (04h 51m 12.94s , +26d 20m 57.9s) |   C |    60 | 17.4 |        
  157003 | 2022-04-23 03:54:07 |         MASTER-OAGH | (05h 03m 47.83s , +20d 11m 56.4s) |   C |    60 | 18.0 |        
  157003 | 2022-04-23 03:54:07 |         MASTER-OAGH | (05h 03m 05.08s , +20d 39m 39.1s) |   C |    60 | 17.4 |        
  157098 | 2022-04-23 03:55:42 |         MASTER-OAGH | (05h 11m 30.71s , +20d 39m 04.3s) |   C |    60 | 17.2 |        
  157342 | 2022-04-23 03:59:46 |         MASTER-OAGH | (04h 43m 35.68s , +22d 04m 28.5s) |   C |    60 | 17.4 |        
  157342 | 2022-04-23 03:59:46 |         MASTER-OAGH | (04h 42m 50.57s , +22d 32m 14.1s) |   C |    60 | 17.2 |        
  157429 | 2022-04-23 04:01:13 |         MASTER-OAGH | (04h 52m 00.30s , +25d 53m 58.7s) |   C |    60 | 17.8 |        
  157429 | 2022-04-23 04:01:13 |         MASTER-OAGH | (04h 51m 14.90s , +26d 21m 40.1s) |   C |    60 | 17.4 |        
  157935 | 2022-04-23 04:09:39 |         MASTER-OAGH | (05h 03m 50.31s , +20d 11m 22.7s) |   C |    60 | 17.4 |        
  157935 | 2022-04-23 04:09:39 |         MASTER-OAGH | (05h 03m 06.24s , +20d 39m 05.8s) |   C |    60 | 17.1 |        
  158016 | 2022-04-23 04:11:00 |         MASTER-OAGH | (05h 11m 32.42s , +20d 38m 06.8s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 6105
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) started inspect of the FERMI GRB220421.35 (trigger No 672221879,04h 57m 40.80s , +23d 08m 24.0s, R=2.09) errorbox  16459 sec after notice time and 32297 sec after trigger time at 2022-04-21 17:16:12 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -14.4 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB220421.35 errorbox  38132 sec after notice time and 53970 sec after trigger time at 2022-04-21 23:17:25 UT, with upper limit up to  16.1 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -15.5 deg. 

MASTER-OAGH robotic telescope  located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the FERMI GRB220421.35 errorbox  56537 sec after notice time and 72375 sec after trigger time at 2022-04-22 04:24:10 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 80 deg. The sun  altitude  is -30.1 deg. 

The galactic latitude b = -12 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1950241

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32328 | 2022-04-21 17:16:12 |         MASTER-SAAO | (04h 55m 32.93s , +23d 59m 04.1s) |   C |    60 | 15.1 |        
   32407 | 2022-04-21 17:17:31 |         MASTER-SAAO | (05h 04m 15.50s , +24d 00m 52.6s) |   C |    60 | 15.4 |        
   33239 | 2022-04-21 17:31:23 |         MASTER-SAAO | (05h 09m 08.86s , +25d 54m 24.7s) |   C |    60 | 15.2 |        
   33413 | 2022-04-21 17:34:17 |         MASTER-SAAO | (05h 04m 26.29s , +24d 01m 23.3s) |   C |    60 | 14.1 |        
   33492 | 2022-04-21 17:35:36 |         MASTER-SAAO | (05h 00m 15.90s , +22d 07m 05.2s) |   C |    60 | 13.8 |        
   54001 | 2022-04-21 23:17:25 |         MASTER-OAFA | (04h 53m 17.21s , +23d 15m 08.9s) |   C |    60 | 15.4 |        
   54080 | 2022-04-21 23:18:44 |         MASTER-OAFA | (05h 02m 02.83s , +23d 16m 36.6s) |   C |    60 | 15.4 |        
   54160 | 2022-04-21 23:20:04 |         MASTER-OAFA | (04h 49m 08.74s , +21d 19m 59.7s) |   C |    60 | 15.7 |        
   54243 | 2022-04-21 23:21:27 |         MASTER-OAFA | (04h 57m 53.59s , +21d 20m 27.0s) |   C |    60 | 15.9 |        
   54487 | 2022-04-21 23:25:31 |         MASTER-OAFA | (04h 57m 51.31s , +25d 10m 03.2s) |   C |    60 | 15.4 |        
   54566 | 2022-04-21 23:26:50 |         MASTER-OAFA | (05h 06m 50.47s , +25d 09m 32.8s) |   C |    60 | 15.5 |        
   54646 | 2022-04-21 23:28:10 |         MASTER-OAFA | (05h 05m 39.31s , +21d 20m 54.9s) |   C |    60 | 16.1 |        
   55086 | 2022-04-21 23:35:30 |         MASTER-OAFA | (05h 02m 08.90s , +23d 15m 11.8s) |   C |    60 | 15.3 |        
   55167 | 2022-04-21 23:36:51 |         MASTER-OAFA | (04h 57m 52.83s , +21d 20m 21.2s) |   C |    60 | 15.8 |        
   55489 | 2022-04-21 23:42:13 |         MASTER-OAFA | (04h 54m 04.18s , +19d 26m 55.1s) |   C |    60 | 15.5 |        
   55569 | 2022-04-21 23:43:33 |         MASTER-OAFA | (05h 05m 39.87s , +21d 20m 43.4s) |   C |    60 | 15.6 |        
   55648 | 2022-04-21 23:44:52 |         MASTER-OAFA | (05h 01m 42.26s , +19d 26m 48.2s) |   C |    60 | 15.7 |        
   72406 | 2022-04-22 04:24:10 |         MASTER-OAGH | (04h 55m 30.89s , +23d 58m 54.2s) |   C |    60 | 17.5 |        
   72406 | 2022-04-22 04:24:10 |         MASTER-OAGH | (04h 54m 45.56s , +24d 27m 10.2s) |   C |    60 | 17.9 |        
   72488 | 2022-04-22 04:25:32 |         MASTER-OAGH | (05h 04m 09.09s , +23d 57m 50.4s) |   C |    60 | 17.0 |        
   72488 | 2022-04-22 04:25:32 |         MASTER-OAGH | (05h 03m 24.21s , +24d 26m 05.6s) |   C |    60 | 17.3 |        
   72570 | 2022-04-22 04:26:54 |         MASTER-OAGH | (05h 00m 02.06s , +25d 53m 18.5s) |   C |    60 | 17.3 |        
   72570 | 2022-04-22 04:26:54 |         MASTER-OAGH | (04h 59m 16.36s , +26d 21m 34.8s) |   C |    60 | 17.8 |        
   72651 | 2022-04-22 04:28:15 |         MASTER-OAGH | (05h 08m 54.44s , +25d 52m 02.3s) |   C |    60 | 17.6 |        
   72651 | 2022-04-22 04:28:15 |         MASTER-OAGH | (05h 08m 09.26s , +26d 20m 17.5s) |   C |    60 | 17.7 |        
   72732 | 2022-04-22 04:29:36 |         MASTER-OAGH | (05h 07m 39.43s , +22d 04m 44.9s) |   C |    60 | 17.1 |        
   72732 | 2022-04-22 04:29:36 |         MASTER-OAGH | (05h 06m 54.84s , +22d 33m 01.3s) |   C |    60 | 17.4 |        
   72895 | 2022-04-22 04:32:19 |         MASTER-OAGH | (05h 12m 00.88s , +23d 57m 44.2s) |   C |    60 | 17.1 |        
   72895 | 2022-04-22 04:32:19 |         MASTER-OAGH | (05h 11m 16.01s , +24d 25m 58.5s) |   C |    60 | 17.4 |        
   73597 | 2022-04-22 04:44:01 |         MASTER-OAGH | (05h 08m 52.63s , +25d 53m 44.0s) |   C |    60 | 17.9 |        
   73597 | 2022-04-22 04:44:01 |         MASTER-OAGH | (05h 08m 06.14s , +26d 21m 55.2s) |   C |    60 | 17.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 6102
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) started inspect of the FERMI GRB220421.35 (trigger No 672221879,04h 57m 40.80s , +23d 08m 24.0s, R=2.09) errorbox  16459 sec after notice time and 32297 sec after trigger time at 2022-04-21 17:16:12 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -14.4 deg. 

The galactic latitude b = -12 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1950247

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32328 | 2022-04-21 17:16:12 |         MASTER-SAAO | (04h 55m 32.93s , +23d 59m 04.1s) |   C |    60 | 15.1 |        
   32407 | 2022-04-21 17:17:31 |         MASTER-SAAO | (05h 04m 15.50s , +24d 00m 52.6s) |   C |    60 | 15.4 |        
   33239 | 2022-04-21 17:31:23 |         MASTER-SAAO | (05h 09m 08.86s , +25d 54m 24.7s) |   C |    60 | 15.2 |        
   33413 | 2022-04-21 17:34:17 |         MASTER-SAAO | (05h 04m 26.29s , +24d 01m 23.3s) |   C |    60 | 14.1 |        
   33492 | 2022-04-21 17:35:36 |         MASTER-SAAO | (05h 00m 15.90s , +22d 07m 05.2s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 6101
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) started inspect of the FERMI GRB220421.35 (trigger No 672221879,04h 57m 40.80s , +23d 08m 24.0s, R=2.09) errorbox  16459 sec after notice time and 32297 sec after trigger time at 2022-04-21 17:16:12 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -14.4 deg. 

The galactic latitude b = -12 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1950247

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32328 | 2022-04-21 17:16:12 |         MASTER-SAAO | (04h 55m 32.93s , +23d 59m 04.1s) |   C |    60 | 15.1 |        
   32407 | 2022-04-21 17:17:31 |         MASTER-SAAO | (05h 04m 15.50s , +24d 00m 52.6s) |   C |    60 | 15.4 |        
   33239 | 2022-04-21 17:31:23 |         MASTER-SAAO | (05h 09m 08.86s , +25d 54m 24.7s) |   C |    60 | 15.2 |        
   33413 | 2022-04-21 17:34:17 |         MASTER-SAAO | (05h 04m 26.29s , +24d 01m 23.3s) |   C |    60 | 14.1 |        
   33492 | 2022-04-21 17:35:36 |         MASTER-SAAO | (05h 00m 15.90s , +22d 07m 05.2s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 6100
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) started inspect of the FERMI GRB220421.35 (trigger No 672221879,04h 57m 40.80s , +23d 08m 24.0s, R=2.09) errorbox  16459 sec after notice time and 32297 sec after trigger time at 2022-04-21 17:16:12 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -14.4 deg. 

The galactic latitude b = -12 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1950247

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32328 | 2022-04-21 17:16:12 |         MASTER-SAAO | (04h 55m 32.93s , +23d 59m 04.1s) |   C |    60 | 15.1 |        
   32407 | 2022-04-21 17:17:31 |         MASTER-SAAO | (05h 04m 15.50s , +24d 00m 52.6s) |   C |    60 | 15.4 |        
   33239 | 2022-04-21 17:31:23 |         MASTER-SAAO | (05h 09m 08.86s , +25d 54m 24.7s) |   C |    60 | 15.2 |        
   33413 | 2022-04-21 17:34:17 |         MASTER-SAAO | (05h 04m 26.29s , +24d 01m 23.3s) |   C |    60 | 14.1 |        
   33492 | 2022-04-21 17:35:36 |         MASTER-SAAO | (05h 00m 15.90s , +22d 07m 05.2s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024