MASTER Net MASTER Database: GRB230227.43 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 GRB230227.43
Trignum 699186128
Trigger time 2023-02-27 10:22:03.23
Notice time 2023-02-27 10:22:32.999958
Coord, eb (01h 47m 21.60s , -06d 10m 12.0s) , 13.75
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You are viewing outdated information, relevant error box is here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
2201434 2023-02-27 10:31:35.251624 23h 12m 12.00s -50d 22m 48.0s FERMI 1.75 alert 699186128 6 115 alert
2201429 2023-02-27 10:22:32.999958 01h 47m 21.60s -06d 10m 12.0s FERMI 13.75 alert 699186128 4 112 alert
2201424 2023-02-27 10:22:20.816093 02h 28m 55.92s -11d 04m 01.2s FERMI 25.77 alert 699186128 28 111 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

2023-02-27 10:22:03 (JD 2460002.931979)

Siderial time 23.341996 h

Ra 01:47:21.60 Dec -6:10:12.00
( 26.840000d, -6.170000d)

Rise 2023-02-27 10:21:50

Transit 2023-02-27 15:48:29

Set 2023-02-27 21:15:09

Amur

Object: Altitude: 17.33 Azimuth: 56.46

Sun: Altitude: -12.97 Azimuth: 92.32

Moon: Altitude: 62.47 Azimuth: 25.95

Tunka

Object: Altitude: 27.03 Azimuth: 32.46

Sun: Altitude: 2.01 Azimuth: 73.53

Moon: Altitude: 61.44 Azimuth: 337.60

Kislovodsk

Object: Altitude: 32.42 Azimuth: 321.63

Sun: Altitude: 35.99 Azimuth: 18.64

Moon: Altitude: 29.35 Azimuth: 262.87

Tavrida

Object: Altitude: 27.58 Azimuth: 313.48

Sun: Altitude: 36.45 Azimuth: 8.18

Moon: Altitude: 23.51 Azimuth: 257.92

SAAO

Object: Altitude: 33.83 Azimuth: 254.23

Sun: Altitude: 65.34 Azimuth: 195.71

Moon: Altitude: -15.93 Azimuth: 250.57

IAC

Object: Altitude: -3.66 Azimuth: 275.04

Sun: Altitude: 33.90 Azimuth: 304.31

Moon: Altitude: -19.19 Azimuth: 226.45

Argentina

Object: Altitude: -38.60 Azimuth: 311.06

Sun: Altitude: -1.16 Azimuth: 280.73

Moon: Altitude: -82.05 Azimuth: 26.92

Mexico

Object: Altitude: -64.73 Azimuth: 168.97

Sun: Altitude: -44.70 Azimuth: 249.30

Moon: Altitude: -19.59 Azimuth: 136.98

Ural

Object: Altitude: 25.65 Azimuth: 343.65

Sun: Altitude: 19.37 Azimuth: 33.94

Moon: Altitude: 39.27 Azimuth: 285.70

Vostryakovo

Object: Altitude: 21.44 Azimuth: 320.53

Sun: Altitude: 25.54 Azimuth: 11.46

Moon: Altitude: 27.45 Azimuth: 265.71

Gal. latitude: -64.644869 Gal. longitude: 158.791137

Dist. to Sun: 46.607450

Dist. to Moon: 49.883060

Moon coord.: (67.137928 d, 24.649688 d)

Sun coord.: (339.880508 d, -8.484622 d)

Lunar disk: 0.510514

Lunar phase: 88.795044

Lunar bright limb: 261.144293

No SN in this field

2023-02-27 10:22:32 (JD 2460002.932315)

Siderial time 23.350074 h

Ra 01:47:21.60 Dec -6:10:12.00
( 26.840000d, -6.170000d)

Rise 2023-02-27 10:21:50

Transit 2023-02-27 15:48:29

Set 2023-02-27 21:15:09

Amur

Object: Altitude: 17.27 Azimuth: 56.56

Sun: Altitude: -13.05 Azimuth: 92.41

Moon: Altitude: 62.44 Azimuth: 26.17

Tunka

Object: Altitude: 26.99 Azimuth: 32.58

Sun: Altitude: 1.94 Azimuth: 73.63

Moon: Altitude: 61.47 Azimuth: 337.82

Kislovodsk

Object: Altitude: 32.47 Azimuth: 321.76

Sun: Altitude: 35.96 Azimuth: 18.78

Moon: Altitude: 29.44 Azimuth: 262.95

Tavrida

Object: Altitude: 27.64 Azimuth: 313.59

Sun: Altitude: 36.44 Azimuth: 8.33

Moon: Altitude: 23.59 Azimuth: 257.99

SAAO

Object: Altitude: 33.93 Azimuth: 254.14

Sun: Altitude: 65.37 Azimuth: 195.43

Moon: Altitude: -15.84 Azimuth: 250.52

IAC

Object: Altitude: -3.55 Azimuth: 275.10

Sun: Altitude: 33.99 Azimuth: 304.41

Moon: Altitude: -19.12 Azimuth: 226.53

Argentina

Object: Altitude: -38.53 Azimuth: 310.95

Sun: Altitude: -1.06 Azimuth: 280.67

Moon: Altitude: -82.09 Azimuth: 26.23

Mexico

Object: Altitude: -64.75 Azimuth: 169.25

Sun: Altitude: -44.60 Azimuth: 249.40

Moon: Altitude: -19.66 Azimuth: 137.06

Ural

Object: Altitude: 25.67 Azimuth: 343.78

Sun: Altitude: 19.34 Azimuth: 34.06

Moon: Altitude: 39.33 Azimuth: 285.81

Vostryakovo

Object: Altitude: 21.48 Azimuth: 320.66

Sun: Altitude: 25.53 Azimuth: 11.59

Moon: Altitude: 27.52 Azimuth: 265.80

Gal. latitude: -64.644869 Gal. longitude: 158.791137

Dist. to Sun: 46.607138

Dist. to Moon: 49.886962

Moon coord.: (67.142367 d, 24.650630 d)

Sun coord.: (339.880824 d, -8.484496 d)

Lunar disk: 0.510548

Lunar phase: 88.791250

Lunar bright limb: 261.146133

No SN in this field

2023-02-27 11:22:32 (JD 2460002.973981)

Siderial time 0.352812 h

Ra 01:47:21.60 Dec -6:10:12.00
( 26.840000d, -6.170000d)

Rise 2023-02-27 10:21:50

Transit 2023-02-27 15:48:29

Set 2023-02-27 21:15:09

Amur

Object: Altitude: 8.73 Azimuth: 69.18

Sun: Altitude: -22.50 Azimuth: 104.45

Moon: Altitude: 56.81 Azimuth: 49.90

Tunka

Object: Altitude: 21.00 Azimuth: 47.60

Sun: Altitude: -7.15 Azimuth: 85.38

Moon: Altitude: 62.86 Azimuth: 6.07

Kislovodsk

Object: Altitude: 37.87 Azimuth: 338.86

Sun: Altitude: 31.01 Azimuth: 35.58

Moon: Altitude: 39.95 Azimuth: 272.60

Tavrida

Object: Altitude: 34.31 Azimuth: 329.23

Sun: Altitude: 33.29 Azimuth: 26.03

Moon: Altitude: 33.86 Azimuth: 267.40

SAAO

Object: Altitude: 45.72 Azimuth: 242.09

Sun: Altitude: 64.80 Azimuth: 159.76

Moon: Altitude: -4.63 Azimuth: 243.49

IAC

Object: Altitude: 9.53 Azimuth: 282.37

Sun: Altitude: 43.92 Azimuth: 318.65

Moon: Altitude: -9.12 Azimuth: 235.37

Argentina

Object: Altitude: -27.99 Azimuth: 298.21

Sun: Altitude: 11.58 Azimuth: 272.85

Moon: Altitude: -78.28 Azimuth: 304.24

Mexico

Object: Altitude: -63.26 Azimuth: 203.62

Sun: Altitude: -32.20 Azimuth: 259.86

Moon: Altitude: -27.05 Azimuth: 148.93

Ural

Object: Altitude: 26.79 Azimuth: 0.42

Sun: Altitude: 13.97 Azimuth: 48.50

Moon: Altitude: 46.66 Azimuth: 300.81

Vostryakovo

Object: Altitude: 25.95 Azimuth: 336.26

Sun: Altitude: 22.69 Azimuth: 27.56

Moon: Altitude: 35.82 Azimuth: 277.83

Gal. latitude: -64.644869 Gal. longitude: 158.791137

Dist. to Sun: 46.568445

Dist. to Moon: 50.371327

Moon coord.: (67.693630 d, 24.766475 d)

Sun coord.: (339.920082 d, -8.468854 d)

Lunar disk: 0.514653

Lunar phase: 88.320604

Lunar bright limb: 261.375338

No SN in this field

2025-04-08 12:34:26 (JD 2460774.023912)

Siderial time 4.216701 h

Ra 01:47:21.60 Dec -6:10:12.00
( 26.840000d, -6.170000d)

Rise 2025-04-09 07:38:36

Transit 2025-04-09 13:05:15

Set 2025-04-09 18:31:55

Amur

Object: Altitude: -27.28 Azimuth: 115.60

Sun: Altitude: -20.97 Azimuth: 132.42

Moon: Altitude: 53.78 Azimuth: 1.68

Tunka

Object: Altitude: -12.17 Azimuth: 95.53

Sun: Altitude: -7.22 Azimuth: 111.58

Moon: Altitude: 47.90 Azimuth: 324.94

Kislovodsk

Object: Altitude: 27.72 Azimuth: 47.86

Sun: Altitude: 32.58 Azimuth: 66.21

Moon: Altitude: 14.04 Azimuth: 263.77

Tavrida

Object: Altitude: 31.20 Azimuth: 39.03

Sun: Altitude: 37.49 Azimuth: 57.65

Moon: Altitude: 8.17 Azimuth: 258.21

SAAO

Object: Altitude: 58.05 Azimuth: 140.92

Sun: Altitude: 41.50 Azimuth: 139.59

Moon: Altitude: -20.58 Azimuth: 265.97

IAC

Object: Altitude: 51.53 Azimuth: 330.90

Sun: Altitude: 67.66 Azimuth: 338.66

Moon: Altitude: -34.48 Azimuth: 225.11

Argentina

Object: Altitude: 19.77 Azimuth: 264.92

Sun: Altitude: 20.12 Azimuth: 247.29

Moon: Altitude: -67.16 Azimuth: 42.83

Mexico

Object: Altitude: -21.65 Azimuth: 264.03

Sun: Altitude: -6.30 Azimuth: 257.57

Moon: Altitude: -19.19 Azimuth: 120.72

Ural

Object: Altitude: 11.18 Azimuth: 59.60

Sun: Altitude: 17.95 Azimuth: 75.24

Moon: Altitude: 24.29 Azimuth: 281.80

Vostryakovo

Object: Altitude: 21.41 Azimuth: 39.55

Sun: Altitude: 29.58 Azimuth: 55.55

Moon: Altitude: 12.33 Azimuth: 262.96

Gal. latitude: -64.644869 Gal. longitude: 158.791137

Dist. to Sun: 16.573674

Dist. to Moon: 125.644825

Moon coord.: (152.094855 d, 14.109279 d)

Sun coord.: (17.137405 d, 7.283193 d)

Lunar disk: 0.825215

Lunar phase: 49.425902

Lunar bright limb: 292.714139

No SN in this field
Recent coverage and limits telegrams

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

  ID = 7852
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 GRB 230227A ( Fermi GBM team, GCN 33376) errorbox  27935 sec after notice time and 27945 sec after trigger time at 2023-02-27 18:07:48 UT, with upper limit up to  18.1 mag. Observations started at twilight.  The observations began at zenith distance = 71 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = -61 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2201433

We obtain a following upper limits.  

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

   27975 | 2023-02-27 18:07:48 |         MASTER-SAAO | (23h 22m 43.55s , -50d 06m 48.8s) |   C |    60 | 15.8 |        
   28055 | 2023-02-27 18:09:07 |         MASTER-SAAO | (23h 03m 26.41s , -48d 11m 15.9s) |   C |    60 | 14.7 |        
   28146 | 2023-02-27 18:10:39 |         MASTER-SAAO | (23h 15m 26.92s , -48d 13m 00.1s) |   C |    60 | 15.7 |        
   28533 | 2023-02-27 18:17:05 |         MASTER-SAAO | (22h 54m 28.18s , -51d 59m 07.3s) |   C |    60 | 16.4 |        
   28612 | 2023-02-27 18:18:25 |         MASTER-SAAO | (23h 07m 21.20s , -51d 59m 54.1s) |   C |    60 | 17.1 |        
   28703 | 2023-02-27 18:19:56 |         MASTER-SAAO | (23h 19m 03.56s , -51d 59m 04.8s) |   C |    60 | 17.4 |        
   28782 | 2023-02-27 18:21:15 |         MASTER-SAAO | (23h 32m 10.32s , -52d 00m 19.3s) |   C |    60 | 17.6 |        
   28956 | 2023-02-27 18:24:09 |         MASTER-SAAO | (22h 59m 02.16s , -50d 06m 24.6s) |   C |    60 | 17.1 |        
   29048 | 2023-02-27 18:25:40 |         MASTER-SAAO | (23h 04m 37.58s , -53d 52m 45.1s) |   C |    60 | 17.5 |        
   29138 | 2023-02-27 18:27:11 |         MASTER-SAAO | (23h 18m 13.09s , -53d 54m 42.5s) |   C |    60 | 17.8 |        
   29223 | 2023-02-27 18:28:36 |         MASTER-SAAO | (23h 10m 16.61s , -50d 05m 00.7s) |   C |    60 | 17.2 |        
   29314 | 2023-02-27 18:30:07 |         MASTER-SAAO | (23h 22m 39.71s , -50d 05m 57.9s) |   C |    60 | 17.9 |        
   29399 | 2023-02-27 18:31:32 |         MASTER-SAAO | (23h 03m 25.78s , -48d 10m 31.1s) |   C |    60 | 17.0 |        
   29489 | 2023-02-27 18:33:01 |         MASTER-SAAO | (23h 15m 32.95s , -48d 11m 45.1s) |   C |    60 | 17.5 |        
   29570 | 2023-02-27 18:34:23 |         MASTER-SAAO | (22h 54m 24.11s , -52d 00m 20.0s) |   C |    60 | 17.1 |        
   29659 | 2023-02-27 18:35:52 |         MASTER-SAAO | (23h 07m 28.96s , -52d 00m 30.7s) |   C |    60 | 17.9 |        
   29749 | 2023-02-27 18:37:22 |         MASTER-SAAO | (23h 19m 08.93s , -51d 58m 50.7s) |   C |    60 | 17.9 |        
   29829 | 2023-02-27 18:38:42 |         MASTER-SAAO | (23h 32m 09.06s , -52d 00m 48.4s) |   C |    60 | 18.0 |        
   29926 | 2023-02-27 18:40:18 |         MASTER-SAAO | (22h 58m 57.37s , -50d 05m 19.4s) |   C |    60 | 17.6 |        
   30005 | 2023-02-27 18:41:38 |         MASTER-SAAO | (23h 04m 36.55s , -53d 52m 26.0s) |   C |    60 | 18.0 |        
   30096 | 2023-02-27 18:43:09 |         MASTER-SAAO | (23h 18m 17.75s , -53d 53m 39.5s) |   C |    60 | 18.0 |        
   30175 | 2023-02-27 18:44:28 |         MASTER-SAAO | (23h 26m 21.92s , -48d 12m 46.9s) |   C |    60 | 17.9 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 35m 15.88s , -50d 04m 17.8s) |   C |    60 | 17.8 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 33m 34.02s , -50d 04m 42.6s) |   C |    60 | 17.2 |        
   61750 | 2023-02-28 03:30:43 |         MASTER-SAAO | (22h 53m 18.73s , -48d 23m 46.1s) |   C |    60 | 14.3 |        
  114610 | 2023-02-28 18:11:43 |         MASTER-SAAO | (23h 11m 35.87s , -50d 04m 48.5s) |   C |    60 | 16.7 |        
  114610 | 2023-02-28 18:11:43 |         MASTER-SAAO | (23h 10m 19.42s , -50d 04m 57.3s) |   C |    60 | 16.6 |        
  114702 | 2023-02-28 18:13:15 |         MASTER-SAAO | (23h 23m 59.38s , -50d 05m 55.7s) |   C |    60 | 17.1 |        
  114702 | 2023-02-28 18:13:15 |         MASTER-SAAO | (23h 22m 42.66s , -50d 06m 04.6s) |   C |    60 | 17.1 |        
  114784 | 2023-02-28 18:14:36 |         MASTER-SAAO | (23h 04m 42.96s , -48d 10m 29.0s) |   C |    60 | 16.6 |        
  114784 | 2023-02-28 18:14:36 |         MASTER-SAAO | (23h 03m 29.63s , -48d 10m 35.5s) |   C |    60 | 16.6 |        
  114874 | 2023-02-28 18:16:06 |         MASTER-SAAO | (23h 16m 48.86s , -48d 11m 41.7s) |   C |    60 | 17.2 |        
  114874 | 2023-02-28 18:16:06 |         MASTER-SAAO | (23h 15m 35.28s , -48d 11m 48.5s) |   C |    60 | 16.9 |        
  114955 | 2023-02-28 18:17:28 |         MASTER-SAAO | (22h 55m 46.67s , -52d 00m 14.6s) |   C |    60 | 17.0 |        
  114955 | 2023-02-28 18:17:28 |         MASTER-SAAO | (22h 54m 27.15s , -52d 00m 19.6s) |   C |    60 | 16.9 |        
  115046 | 2023-02-28 18:18:59 |         MASTER-SAAO | (23h 08m 52.18s , -51d 59m 59.0s) |   C |    60 | 17.7 |        
  115046 | 2023-02-28 18:18:59 |         MASTER-SAAO | (23h 07m 32.40s , -52d 00m 04.4s) |   C |    60 | 17.4 |        
  115667 | 2023-02-28 18:29:20 |         MASTER-SAAO | (23h 11m 32.20s , -50d 06m 28.0s) |   C |    60 | 17.7 |        
  115667 | 2023-02-28 18:29:20 |         MASTER-SAAO | (23h 10m 15.37s , -50d 06m 37.8s) |   C |    60 | 17.3 |        
  115758 | 2023-02-28 18:30:51 |         MASTER-SAAO | (23h 24m 08.38s , -50d 06m 14.0s) |   C |    60 | 18.1 |        
  115758 | 2023-02-28 18:30:51 |         MASTER-SAAO | (23h 22m 51.39s , -50d 06m 23.4s) |   C |    60 | 17.8 |        
  115841 | 2023-02-28 18:32:13 |         MASTER-SAAO | (23h 04m 49.13s , -48d 10m 14.5s) |   C |    60 | 17.4 |        
  115841 | 2023-02-28 18:32:13 |         MASTER-SAAO | (23h 03m 35.57s , -48d 10m 21.3s) |   C |    60 | 16.9 |        
  115931 | 2023-02-28 18:33:44 |         MASTER-SAAO | (23h 16m 49.07s , -48d 12m 05.8s) |   C |    60 | 17.8 |        
  115931 | 2023-02-28 18:33:44 |         MASTER-SAAO | (23h 15m 35.36s , -48d 12m 13.1s) |   C |    60 | 17.5 |        
  116012 | 2023-02-28 18:35:05 |         MASTER-SAAO | (22h 55m 56.25s , -51d 58m 06.7s) |   C |    60 | 17.4 |        
  116012 | 2023-02-28 18:35:05 |         MASTER-SAAO | (22h 54m 36.64s , -51d 58m 12.9s) |   C |    60 | 16.9 |        
  116103 | 2023-02-28 18:36:36 |         MASTER-SAAO | (23h 08m 49.00s , -51d 59m 10.6s) |   C |    60 | 17.9 |        
  116103 | 2023-02-28 18:36:36 |         MASTER-SAAO | (23h 07m 29.13s , -51d 59m 17.2s) |   C |    60 | 17.5 |        
  116370 | 2023-02-28 18:41:03 |         MASTER-SAAO | (23h 20m 37.58s , -52d 00m 01.8s) |   C |    60 | 17.2 |        
  116370 | 2023-02-28 18:41:03 |         MASTER-SAAO | (23h 19m 17.09s , -52d 00m 08.3s) |   C |    60 | 16.9 |        
  116450 | 2023-02-28 18:42:23 |         MASTER-SAAO | (23h 33m 35.28s , -51d 58m 49.0s) |   C |    60 | 17.9 |        
  116450 | 2023-02-28 18:42:23 |         MASTER-SAAO | (23h 32m 14.67s , -51d 58m 55.4s) |   C |    60 | 17.8 |        
  116631 | 2023-02-28 18:45:23 |         MASTER-SAAO | (23h 00m 22.45s , -50d 04m 55.2s) |   C |    60 | 17.6 |        
  116631 | 2023-02-28 18:45:23 |         MASTER-SAAO | (22h 59m 06.17s , -50d 04m 59.9s) |   C |    60 | 16.9 |        
  116710 | 2023-02-28 18:46:43 |         MASTER-SAAO | (23h 06m 12.86s , -53d 53m 02.2s) |   C |    60 | 17.7 |        
  116710 | 2023-02-28 18:46:43 |         MASTER-SAAO | (23h 04m 49.54s , -53d 53m 07.4s) |   C |    60 | 17.5 |        
  116790 | 2023-02-28 18:48:03 |         MASTER-SAAO | (23h 19m 42.13s , -53d 54m 14.8s) |   C |    60 | 17.8 |        
  116790 | 2023-02-28 18:48:03 |         MASTER-SAAO | (23h 18m 18.57s , -53d 54m 20.5s) |   C |    60 | 17.5 |        
  116882 | 2023-02-28 18:49:34 |         MASTER-SAAO | (23h 27m 39.77s , -48d 10m 39.8s) |   C |    60 | 17.6 |        
  116882 | 2023-02-28 18:49:34 |         MASTER-SAAO | (23h 26m 26.15s , -48d 10m 45.2s) |   C |    60 | 17.3 |        
  117740 | 2023-02-28 19:03:52 |         MASTER-SAAO | (23h 19m 22.72s , -52d 00m 20.8s) |   C |    60 | 16.4 |        
  117740 | 2023-02-28 19:03:52 |         MASTER-SAAO | (23h 20m 42.81s , -52d 00m 08.1s) |   C |    60 | 17.1 |        
  117820 | 2023-02-28 19:05:12 |         MASTER-SAAO | (23h 32m 18.59s , -51d 58m 58.6s) |   C |    60 | 17.5 |        
  117820 | 2023-02-28 19:05:12 |         MASTER-SAAO | (23h 33m 38.73s , -51d 58m 46.2s) |   C |    60 | 17.7 |        
  117917 | 2023-02-28 19:06:50 |         MASTER-SAAO | (23h 04m 48.59s , -53d 53m 01.5s) |   C |    60 | 17.2 |        
  117917 | 2023-02-28 19:06:50 |         MASTER-SAAO | (23h 06m 11.83s , -53d 52m 52.6s) |   C |    60 | 17.4 |        
  117997 | 2023-02-28 19:08:09 |         MASTER-SAAO | (23h 18m 24.07s , -53d 52m 12.9s) |   C |    60 | 17.5 |        
  117997 | 2023-02-28 19:08:09 |         MASTER-SAAO | (23h 19m 47.38s , -53d 52m 03.7s) |   C |    60 | 17.5 |        
  118757 | 2023-02-28 19:20:49 |         MASTER-SAAO | (23h 32m 21.38s , -51d 58m 38.8s) |   C |    60 | 16.6 |        
  118757 | 2023-02-28 19:20:49 |         MASTER-SAAO | (23h 33m 41.64s , -51d 58m 27.6s) |   C |    60 | 16.9 |        
  119141 | 2023-02-28 19:27:13 |         MASTER-SAAO | (23h 18m 28.99s , -53d 52m 10.6s) |   C |    60 | 16.3 |        
  119141 | 2023-02-28 19:27:13 |         MASTER-SAAO | (23h 19m 52.72s , -53d 52m 01.2s) |   C |    60 | 17.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7848
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 GRB 230227A ( Fermi GBM team, GCN 33376) errorbox  27935 sec after notice time and 27945 sec after trigger time at 2023-02-27 18:07:48 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 71 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = -61 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2201434

We obtain a following upper limits.  

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

   27975 | 2023-02-27 18:07:48 |         MASTER-SAAO | (23h 22m 43.55s , -50d 06m 48.8s) |   C |    60 | 15.8 |        
   28055 | 2023-02-27 18:09:07 |         MASTER-SAAO | (23h 03m 26.41s , -48d 11m 15.9s) |   C |    60 | 14.7 |        
   28146 | 2023-02-27 18:10:39 |         MASTER-SAAO | (23h 15m 26.92s , -48d 13m 00.1s) |   C |    60 | 15.7 |        
   28533 | 2023-02-27 18:17:05 |         MASTER-SAAO | (22h 54m 28.18s , -51d 59m 07.3s) |   C |    60 | 16.4 |        
   28612 | 2023-02-27 18:18:25 |         MASTER-SAAO | (23h 07m 21.20s , -51d 59m 54.1s) |   C |    60 | 17.1 |        
   28703 | 2023-02-27 18:19:56 |         MASTER-SAAO | (23h 19m 03.56s , -51d 59m 04.8s) |   C |    60 | 17.4 |        
   28782 | 2023-02-27 18:21:15 |         MASTER-SAAO | (23h 32m 10.32s , -52d 00m 19.3s) |   C |    60 | 17.6 |        
   28956 | 2023-02-27 18:24:09 |         MASTER-SAAO | (22h 59m 02.16s , -50d 06m 24.6s) |   C |    60 | 17.1 |        
   29048 | 2023-02-27 18:25:40 |         MASTER-SAAO | (23h 04m 37.58s , -53d 52m 45.1s) |   C |    60 | 17.5 |        
   29138 | 2023-02-27 18:27:11 |         MASTER-SAAO | (23h 18m 13.09s , -53d 54m 42.5s) |   C |    60 | 17.8 |        
   29223 | 2023-02-27 18:28:36 |         MASTER-SAAO | (23h 10m 16.61s , -50d 05m 00.7s) |   C |    60 | 17.2 |        
   29314 | 2023-02-27 18:30:07 |         MASTER-SAAO | (23h 22m 39.71s , -50d 05m 57.9s) |   C |    60 | 17.9 |        
   29399 | 2023-02-27 18:31:32 |         MASTER-SAAO | (23h 03m 25.78s , -48d 10m 31.1s) |   C |    60 | 17.0 |        
   29489 | 2023-02-27 18:33:01 |         MASTER-SAAO | (23h 15m 32.95s , -48d 11m 45.1s) |   C |    60 | 17.5 |        
   29570 | 2023-02-27 18:34:23 |         MASTER-SAAO | (22h 54m 24.11s , -52d 00m 20.0s) |   C |    60 | 17.1 |        
   29659 | 2023-02-27 18:35:52 |         MASTER-SAAO | (23h 07m 28.96s , -52d 00m 30.7s) |   C |    60 | 17.9 |        
   29749 | 2023-02-27 18:37:22 |         MASTER-SAAO | (23h 19m 08.93s , -51d 58m 50.7s) |   C |    60 | 17.9 |        
   29829 | 2023-02-27 18:38:42 |         MASTER-SAAO | (23h 32m 09.06s , -52d 00m 48.4s) |   C |    60 | 18.0 |        
   29926 | 2023-02-27 18:40:18 |         MASTER-SAAO | (22h 58m 57.37s , -50d 05m 19.4s) |   C |    60 | 17.6 |        
   30005 | 2023-02-27 18:41:38 |         MASTER-SAAO | (23h 04m 36.55s , -53d 52m 26.0s) |   C |    60 | 18.0 |        
   30096 | 2023-02-27 18:43:09 |         MASTER-SAAO | (23h 18m 17.75s , -53d 53m 39.5s) |   C |    60 | 18.0 |        
   30175 | 2023-02-27 18:44:28 |         MASTER-SAAO | (23h 26m 21.92s , -48d 12m 46.9s) |   C |    60 | 17.9 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 35m 15.88s , -50d 04m 17.8s) |   C |    60 | 17.8 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 33m 34.02s , -50d 04m 42.6s) |   C |    60 | 17.2 |        
   61750 | 2023-02-28 03:30:43 |         MASTER-SAAO | (22h 53m 18.73s , -48d 23m 46.1s) |   C |    60 | 14.3 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7847
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 GRB 230227A ( Fermi GBM team, GCN 33376) errorbox  27935 sec after notice time and 27945 sec after trigger time at 2023-02-27 18:07:48 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 71 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = -61 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2201434

We obtain a following upper limits.  

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

   27975 | 2023-02-27 18:07:48 |         MASTER-SAAO | (23h 22m 43.55s , -50d 06m 48.8s) |   C |    60 | 15.8 |        
   28055 | 2023-02-27 18:09:07 |         MASTER-SAAO | (23h 03m 26.41s , -48d 11m 15.9s) |   C |    60 | 14.7 |        
   28146 | 2023-02-27 18:10:39 |         MASTER-SAAO | (23h 15m 26.92s , -48d 13m 00.1s) |   C |    60 | 15.7 |        
   28533 | 2023-02-27 18:17:05 |         MASTER-SAAO | (22h 54m 28.18s , -51d 59m 07.3s) |   C |    60 | 16.4 |        
   28612 | 2023-02-27 18:18:25 |         MASTER-SAAO | (23h 07m 21.20s , -51d 59m 54.1s) |   C |    60 | 17.1 |        
   28703 | 2023-02-27 18:19:56 |         MASTER-SAAO | (23h 19m 03.56s , -51d 59m 04.8s) |   C |    60 | 17.4 |        
   28782 | 2023-02-27 18:21:15 |         MASTER-SAAO | (23h 32m 10.32s , -52d 00m 19.3s) |   C |    60 | 17.6 |        
   28956 | 2023-02-27 18:24:09 |         MASTER-SAAO | (22h 59m 02.16s , -50d 06m 24.6s) |   C |    60 | 17.1 |        
   29048 | 2023-02-27 18:25:40 |         MASTER-SAAO | (23h 04m 37.58s , -53d 52m 45.1s) |   C |    60 | 17.5 |        
   29138 | 2023-02-27 18:27:11 |         MASTER-SAAO | (23h 18m 13.09s , -53d 54m 42.5s) |   C |    60 | 17.8 |        
   29223 | 2023-02-27 18:28:36 |         MASTER-SAAO | (23h 10m 16.61s , -50d 05m 00.7s) |   C |    60 | 17.2 |        
   29314 | 2023-02-27 18:30:07 |         MASTER-SAAO | (23h 22m 39.71s , -50d 05m 57.9s) |   C |    60 | 17.9 |        
   29399 | 2023-02-27 18:31:32 |         MASTER-SAAO | (23h 03m 25.78s , -48d 10m 31.1s) |   C |    60 | 17.0 |        
   29489 | 2023-02-27 18:33:01 |         MASTER-SAAO | (23h 15m 32.95s , -48d 11m 45.1s) |   C |    60 | 17.5 |        
   29570 | 2023-02-27 18:34:23 |         MASTER-SAAO | (22h 54m 24.11s , -52d 00m 20.0s) |   C |    60 | 17.1 |        
   29659 | 2023-02-27 18:35:52 |         MASTER-SAAO | (23h 07m 28.96s , -52d 00m 30.7s) |   C |    60 | 17.9 |        
   29749 | 2023-02-27 18:37:22 |         MASTER-SAAO | (23h 19m 08.93s , -51d 58m 50.7s) |   C |    60 | 17.9 |        
   29829 | 2023-02-27 18:38:42 |         MASTER-SAAO | (23h 32m 09.06s , -52d 00m 48.4s) |   C |    60 | 18.0 |        
   29926 | 2023-02-27 18:40:18 |         MASTER-SAAO | (22h 58m 57.37s , -50d 05m 19.4s) |   C |    60 | 17.6 |        
   30005 | 2023-02-27 18:41:38 |         MASTER-SAAO | (23h 04m 36.55s , -53d 52m 26.0s) |   C |    60 | 18.0 |        
   30096 | 2023-02-27 18:43:09 |         MASTER-SAAO | (23h 18m 17.75s , -53d 53m 39.5s) |   C |    60 | 18.0 |        
   30175 | 2023-02-27 18:44:28 |         MASTER-SAAO | (23h 26m 21.92s , -48d 12m 46.9s) |   C |    60 | 17.9 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 35m 15.88s , -50d 04m 17.8s) |   C |    60 | 17.8 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 33m 34.02s , -50d 04m 42.6s) |   C |    60 | 17.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7846
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 GRB 230227A ( Fermi GBM team, GCN 33376) errorbox  27935 sec after notice time and 27945 sec after trigger time at 2023-02-27 18:07:48 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 71 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = -61 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2201434

We obtain a following upper limits.  

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

   27975 | 2023-02-27 18:07:48 |         MASTER-SAAO | (23h 22m 43.55s , -50d 06m 48.8s) |   C |    60 | 15.8 |        
   28055 | 2023-02-27 18:09:07 |         MASTER-SAAO | (23h 03m 26.41s , -48d 11m 15.9s) |   C |    60 | 14.7 |        
   28146 | 2023-02-27 18:10:39 |         MASTER-SAAO | (23h 15m 26.92s , -48d 13m 00.1s) |   C |    60 | 15.7 |        
   28533 | 2023-02-27 18:17:05 |         MASTER-SAAO | (22h 54m 28.18s , -51d 59m 07.3s) |   C |    60 | 16.4 |        
   28612 | 2023-02-27 18:18:25 |         MASTER-SAAO | (23h 07m 21.20s , -51d 59m 54.1s) |   C |    60 | 17.1 |        
   28703 | 2023-02-27 18:19:56 |         MASTER-SAAO | (23h 19m 03.56s , -51d 59m 04.8s) |   C |    60 | 17.4 |        
   28782 | 2023-02-27 18:21:15 |         MASTER-SAAO | (23h 32m 10.32s , -52d 00m 19.3s) |   C |    60 | 17.6 |        
   28956 | 2023-02-27 18:24:09 |         MASTER-SAAO | (22h 59m 02.16s , -50d 06m 24.6s) |   C |    60 | 17.1 |        
   29048 | 2023-02-27 18:25:40 |         MASTER-SAAO | (23h 04m 37.58s , -53d 52m 45.1s) |   C |    60 | 17.5 |        
   29138 | 2023-02-27 18:27:11 |         MASTER-SAAO | (23h 18m 13.09s , -53d 54m 42.5s) |   C |    60 | 17.8 |        
   29223 | 2023-02-27 18:28:36 |         MASTER-SAAO | (23h 10m 16.61s , -50d 05m 00.7s) |   C |    60 | 17.2 |        
   29314 | 2023-02-27 18:30:07 |         MASTER-SAAO | (23h 22m 39.71s , -50d 05m 57.9s) |   C |    60 | 17.9 |        
   29399 | 2023-02-27 18:31:32 |         MASTER-SAAO | (23h 03m 25.78s , -48d 10m 31.1s) |   C |    60 | 17.0 |        
   29489 | 2023-02-27 18:33:01 |         MASTER-SAAO | (23h 15m 32.95s , -48d 11m 45.1s) |   C |    60 | 17.5 |        
   29570 | 2023-02-27 18:34:23 |         MASTER-SAAO | (22h 54m 24.11s , -52d 00m 20.0s) |   C |    60 | 17.1 |        
   29659 | 2023-02-27 18:35:52 |         MASTER-SAAO | (23h 07m 28.96s , -52d 00m 30.7s) |   C |    60 | 17.9 |        
   29749 | 2023-02-27 18:37:22 |         MASTER-SAAO | (23h 19m 08.93s , -51d 58m 50.7s) |   C |    60 | 17.9 |        
   29829 | 2023-02-27 18:38:42 |         MASTER-SAAO | (23h 32m 09.06s , -52d 00m 48.4s) |   C |    60 | 18.0 |        
   29926 | 2023-02-27 18:40:18 |         MASTER-SAAO | (22h 58m 57.37s , -50d 05m 19.4s) |   C |    60 | 17.6 |        
   30005 | 2023-02-27 18:41:38 |         MASTER-SAAO | (23h 04m 36.55s , -53d 52m 26.0s) |   C |    60 | 18.0 |        
   30096 | 2023-02-27 18:43:09 |         MASTER-SAAO | (23h 18m 17.75s , -53d 53m 39.5s) |   C |    60 | 18.0 |        
   30175 | 2023-02-27 18:44:28 |         MASTER-SAAO | (23h 26m 21.92s , -48d 12m 46.9s) |   C |    60 | 17.9 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 35m 15.88s , -50d 04m 17.8s) |   C |    60 | 17.8 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 33m 34.02s , -50d 04m 42.6s) |   C |    60 | 17.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7845
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 GRB 230227A ( Fermi GBM team, GCN 33376) errorbox  27935 sec after notice time and 27945 sec after trigger time at 2023-02-27 18:07:48 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 71 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = -61 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2201434

We obtain a following upper limits.  

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

   27975 | 2023-02-27 18:07:48 |         MASTER-SAAO | (23h 22m 43.55s , -50d 06m 48.8s) |   C |    60 | 15.8 |        
   28055 | 2023-02-27 18:09:07 |         MASTER-SAAO | (23h 03m 26.41s , -48d 11m 15.9s) |   C |    60 | 14.7 |        
   28146 | 2023-02-27 18:10:39 |         MASTER-SAAO | (23h 15m 26.92s , -48d 13m 00.1s) |   C |    60 | 15.7 |        
   28533 | 2023-02-27 18:17:05 |         MASTER-SAAO | (22h 54m 28.18s , -51d 59m 07.3s) |   C |    60 | 16.4 |        
   28612 | 2023-02-27 18:18:25 |         MASTER-SAAO | (23h 07m 21.20s , -51d 59m 54.1s) |   C |    60 | 17.1 |        
   28703 | 2023-02-27 18:19:56 |         MASTER-SAAO | (23h 19m 03.56s , -51d 59m 04.8s) |   C |    60 | 17.4 |        
   28782 | 2023-02-27 18:21:15 |         MASTER-SAAO | (23h 32m 10.32s , -52d 00m 19.3s) |   C |    60 | 17.6 |        
   28956 | 2023-02-27 18:24:09 |         MASTER-SAAO | (22h 59m 02.16s , -50d 06m 24.6s) |   C |    60 | 17.1 |        
   29048 | 2023-02-27 18:25:40 |         MASTER-SAAO | (23h 04m 37.58s , -53d 52m 45.1s) |   C |    60 | 17.5 |        
   29138 | 2023-02-27 18:27:11 |         MASTER-SAAO | (23h 18m 13.09s , -53d 54m 42.5s) |   C |    60 | 17.8 |        
   29223 | 2023-02-27 18:28:36 |         MASTER-SAAO | (23h 10m 16.61s , -50d 05m 00.7s) |   C |    60 | 17.2 |        
   29314 | 2023-02-27 18:30:07 |         MASTER-SAAO | (23h 22m 39.71s , -50d 05m 57.9s) |   C |    60 | 17.9 |        
   29399 | 2023-02-27 18:31:32 |         MASTER-SAAO | (23h 03m 25.78s , -48d 10m 31.1s) |   C |    60 | 17.0 |        
   29489 | 2023-02-27 18:33:01 |         MASTER-SAAO | (23h 15m 32.95s , -48d 11m 45.1s) |   C |    60 | 17.5 |        
   29570 | 2023-02-27 18:34:23 |         MASTER-SAAO | (22h 54m 24.11s , -52d 00m 20.0s) |   C |    60 | 17.1 |        
   29659 | 2023-02-27 18:35:52 |         MASTER-SAAO | (23h 07m 28.96s , -52d 00m 30.7s) |   C |    60 | 17.9 |        
   29749 | 2023-02-27 18:37:22 |         MASTER-SAAO | (23h 19m 08.93s , -51d 58m 50.7s) |   C |    60 | 17.9 |        
   29829 | 2023-02-27 18:38:42 |         MASTER-SAAO | (23h 32m 09.06s , -52d 00m 48.4s) |   C |    60 | 18.0 |        
   29926 | 2023-02-27 18:40:18 |         MASTER-SAAO | (22h 58m 57.37s , -50d 05m 19.4s) |   C |    60 | 17.6 |        
   30005 | 2023-02-27 18:41:38 |         MASTER-SAAO | (23h 04m 36.55s , -53d 52m 26.0s) |   C |    60 | 18.0 |        
   30096 | 2023-02-27 18:43:09 |         MASTER-SAAO | (23h 18m 17.75s , -53d 53m 39.5s) |   C |    60 | 18.0 |        
   30175 | 2023-02-27 18:44:28 |         MASTER-SAAO | (23h 26m 21.92s , -48d 12m 46.9s) |   C |    60 | 17.9 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 35m 15.88s , -50d 04m 17.8s) |   C |    60 | 17.8 |        
   31810 | 2023-02-27 19:11:42 |         MASTER-SAAO | (23h 33m 34.02s , -50d 04m 42.6s) |   C |    60 | 17.2 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2025