MASTER Net MASTER Database: LIGO GRB230510.89 alert (last error box)

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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Name FERMI GRB230510.89
Type 2 (last error box)
Trigger time 2023-05-10 21:21:34.01
Notice time 2023-05-10 21:22:09.385674
Distance ± Mpc
BNS BHH NSBH Gap Terr
Galaxy in: 50%
90%
FULL

This work was supported by RFBR BRICS 17-52-80133 grant.
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)

DAYS:
Coverage since triggertime up to

ALL PLOTS
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 95.1 72.3 70.5
2023-05-24 21:21:34 336.0 336.0 223.6

Map with WFC

Discoveries in this field
No discoveries yet!

Synchronous WFC images
datetime coord2000 observatory camera links
2023-05-10 21:20:32.464 14h 23m 39.00s +03d 06m 36.0s SAAO 111341 Database SAAO
2023-05-10 21:18:41.692 14h 46m 49.00s +03d 05m 00.0s SAAO 136956 Database SAAO
Errorbox center visibility at MASTER facilities
SELECT set_sphere_output('HMS'); select set_sphere_output_precision(1); select distinct on (gn) get_grb_name2 (grbtime, satel ) as gn, coord2000, satel, errorbox, 'now'::timestamp,'now'::timestamp+'1 hour'::interval,grbtime+'1 hour'::interval from grb where tabs(grbtime-'2023-05-10 21:21:34.01')<'10 minutes'::interval order by gn,seq desc,errorbox asc;
trigger notice notice+1hr now

2023-05-10 21:21:34 (JD 2460075.389977)

Siderial time 15.095143 h

Ra 23:22:16.01 Dec 28:27:00.00
(350.566708d, 28.450000d)

Rise 2023-05-11 22:55:46

Transit 2023-05-11 08:36:46

Set 2023-05-11 18:13:50

Amur

Object: Altitude: 56.16 Azimuth: 297.25

Sun: Altitude: 12.93 Azimuth: 257.85

Moon: Altitude: 12.42 Azimuth: 14.97

Tunka

Object: Altitude: 41.06 Azimuth: 274.91

Sun: Altitude: -0.78 Azimuth: 239.49

Moon: Altitude: 11.96 Azimuth: 352.53

Kislovodsk

Object: Altitude: 1.10 Azimuth: 230.12

Sun: Altitude: -28.49 Azimuth: 184.49

Moon: Altitude: -3.77 Azimuth: 302.89

Tavrida

Object: Altitude: -2.70 Azimuth: 224.11

Sun: Altitude: -27.49 Azimuth: 175.31

Moon: Altitude: -9.53 Azimuth: 297.21

SAAO

Object: Altitude: -56.28 Azimuth: 266.21

Sun: Altitude: -68.37 Azimuth: 51.29

Moon: Altitude: 13.23 Azimuth: 292.48

IAC

Object: Altitude: -33.23 Azimuth: 181.82

Sun: Altitude: -19.81 Azimuth: 124.05

Moon: Altitude: -43.75 Azimuth: 279.87

Argentina

Object: Altitude: -46.09 Azimuth: 99.45

Sun: Altitude: 4.96 Azimuth: 114.33

Moon: Altitude: -32.29 Azimuth: 0.55

Mexico

Object: Altitude: 15.90 Azimuth: 114.00

Sun: Altitude: 58.70 Azimuth: 72.00

Moon: Altitude: -53.30 Azimuth: 87.39

Ural

Object: Altitude: 17.37 Azimuth: 244.21

Sun: Altitude: -13.25 Azimuth: 200.70

Moon: Altitude: -3.61 Azimuth: 315.02

Vostryakovo

Object: Altitude: 6.49 Azimuth: 227.23

Sun: Altitude: -16.97 Azimuth: 179.43

Moon: Altitude: -12.32 Azimuth: 298.08

Gal. latitude: -30.406171 Gal. longitude: 100.872944

Dist. to Sun: 52.743151

Dist. to Moon: 72.887410

Moon coord.: (300.002758 d, -25.905715 d)

Sun coord.: (47.188396 d, 17.648870 d)

Lunar disk: 0.693982

Lunar phase: 67.172151

Lunar bright limb: 80.610960

No SN in this field

2023-05-10 21:22:09 (JD 2460075.390382)

Siderial time 15.104892 h

Ra 23:22:16.01 Dec 28:27:00.00
(350.566708d, 28.450000d)

Rise 2023-05-11 22:55:46

Transit 2023-05-11 08:36:46

Set 2023-05-11 18:13:50

Amur

Object: Altitude: 56.24 Azimuth: 297.42

Sun: Altitude: 13.02 Azimuth: 257.96

Moon: Altitude: 12.40 Azimuth: 15.10

Tunka

Object: Altitude: 41.15 Azimuth: 275.03

Sun: Altitude: -0.70 Azimuth: 239.60

Moon: Altitude: 11.97 Azimuth: 352.66

Kislovodsk

Object: Altitude: 1.18 Azimuth: 230.22

Sun: Altitude: -28.48 Azimuth: 184.65

Moon: Altitude: -3.68 Azimuth: 302.98

Tavrida

Object: Altitude: -2.63 Azimuth: 224.22

Sun: Altitude: -27.50 Azimuth: 175.47

Moon: Altitude: -9.45 Azimuth: 297.30

SAAO

Object: Altitude: -56.15 Azimuth: 266.15

Sun: Altitude: -68.47 Azimuth: 51.02

Moon: Altitude: 13.34 Azimuth: 292.41

IAC

Object: Altitude: -33.22 Azimuth: 181.97

Sun: Altitude: -19.91 Azimuth: 124.14

Moon: Altitude: -43.63 Azimuth: 279.92

Argentina

Object: Altitude: -46.21 Azimuth: 99.39

Sun: Altitude: 4.85 Azimuth: 114.25

Moon: Altitude: -32.29 Azimuth: 0.40

Mexico

Object: Altitude: 15.78 Azimuth: 114.06

Sun: Altitude: 58.58 Azimuth: 72.14

Moon: Altitude: -53.42 Azimuth: 87.46

Ural

Object: Altitude: 17.44 Azimuth: 244.32

Sun: Altitude: -13.22 Azimuth: 200.84

Moon: Altitude: -3.55 Azimuth: 315.13

Vostryakovo

Object: Altitude: 6.56 Azimuth: 227.34

Sun: Altitude: -16.97 Azimuth: 179.58

Moon: Altitude: -12.25 Azimuth: 298.19

Gal. latitude: -30.406171 Gal. longitude: 100.872944

Dist. to Sun: 52.743458

Dist. to Moon: 72.882623

Moon coord.: (300.009048 d, -25.904625 d)

Sun coord.: (47.188792 d, 17.648976 d)

Lunar disk: 0.693939

Lunar phase: 67.177516

Lunar bright limb: 80.608194

No SN in this field

2023-05-10 22:22:09 (JD 2460075.432049)

Siderial time 16.107630 h

Ra 23:22:16.01 Dec 28:27:00.00
(350.566708d, 28.450000d)

Rise 2023-05-11 22:55:46

Transit 2023-05-11 08:36:46

Set 2023-05-11 18:13:50

Amur

Object: Altitude: 63.79 Azimuth: 319.39

Sun: Altitude: 22.53 Azimuth: 269.18

Moon: Altitude: 9.14 Azimuth: 27.86

Tunka

Object: Altitude: 50.24 Azimuth: 288.85

Sun: Altitude: 7.73 Azimuth: 251.17

Moon: Altitude: 12.20 Azimuth: 5.90

Kislovodsk

Object: Altitude: 10.09 Azimuth: 240.04

Sun: Altitude: -26.10 Azimuth: 200.52

Moon: Altitude: 4.60 Azimuth: 312.94

Tavrida

Object: Altitude: 5.49 Azimuth: 234.66

Sun: Altitude: -26.84 Azimuth: 191.53

Moon: Altitude: -0.70 Azimuth: 306.89

SAAO

Object: Altitude: -43.55 Azimuth: 259.89

Sun: Altitude: -75.12 Azimuth: 9.02

Moon: Altitude: 24.77 Azimuth: 285.95

IAC

Object: Altitude: -30.98 Azimuth: 197.37

Sun: Altitude: -30.09 Azimuth: 135.25

Moon: Altitude: -31.21 Azimuth: 284.57

Argentina

Object: Altitude: -58.91 Azimuth: 93.28

Sun: Altitude: -7.11 Azimuth: 106.40

Moon: Altitude: -30.87 Azimuth: 345.28

Mexico

Object: Altitude: 4.34 Azimuth: 120.79

Sun: Altitude: 46.02 Azimuth: 83.45

Moon: Altitude: -65.71 Azimuth: 95.71

Ural

Object: Altitude: 25.12 Azimuth: 255.87

Sun: Altitude: -9.40 Azimuth: 214.88

Moon: Altitude: 1.47 Azimuth: 327.08

Vostryakovo

Object: Altitude: 13.38 Azimuth: 238.84

Sun: Altitude: -15.92 Azimuth: 194.44

Moon: Altitude: -5.36 Azimuth: 309.29

Gal. latitude: -30.406171 Gal. longitude: 100.872944

Dist. to Sun: 52.775023

Dist. to Moon: 72.390545

Moon coord.: (300.655394 d, -25.791064 d)

Sun coord.: (47.229480 d, 17.659859 d)

Lunar disk: 0.689491

Lunar phase: 67.729348

Lunar bright limb: 80.324529

No SN in this field

2025-05-11 11:04:28 (JD 2460806.961435)

Siderial time 4.881575 h

Ra 23:22:16.01 Dec 28:27:00.00
(350.566708d, 28.450000d)

Rise 2025-05-11 22:53:45

Transit 2025-05-11 08:34:44

Set 2025-05-11 18:11:48

Amur

Object: Altitude: -10.95 Azimuth: 173.31

Sun: Altitude: -1.07 Azimuth: 120.30

Moon: Altitude: 9.36 Azimuth: 311.62

Tunka

Object: Altitude: -5.00 Azimuth: 152.20

Sun: Altitude: 13.72 Azimuth: 101.65

Moon: Altitude: -4.39 Azimuth: 292.21

Kislovodsk

Object: Altitude: 20.88 Azimuth: 109.92

Sun: Altitude: 53.96 Azimuth: 53.74

Moon: Altitude: -44.03 Azimuth: 248.86

Tavrida

Object: Altitude: 26.99 Azimuth: 104.36

Sun: Altitude: 57.77 Azimuth: 40.62

Moon: Altitude: -49.08 Azimuth: 239.17

SAAO

Object: Altitude: 2.79 Azimuth: 126.56

Sun: Altitude: 39.09 Azimuth: 169.94

Moon: Altitude: -35.95 Azimuth: 332.72

IAC

Object: Altitude: 64.96 Azimuth: 97.22

Sun: Altitude: 61.37 Azimuth: 284.88

Moon: Altitude: -72.56 Azimuth: 127.06

Argentina

Object: Altitude: 25.47 Azimuth: 203.61

Sun: Altitude: -2.80 Azimuth: 250.60

Moon: Altitude: -9.15 Azimuth: 63.30

Mexico

Object: Altitude: 34.05 Azimuth: 254.68

Sun: Altitude: -16.57 Azimuth: 236.36

Moon: Altitude: 6.13 Azimuth: 65.86

Ural

Object: Altitude: 16.22 Azimuth: 117.60

Sun: Altitude: 37.72 Azimuth: 61.48

Moon: Altitude: -29.59 Azimuth: 255.18

Vostryakovo

Object: Altitude: 27.02 Azimuth: 101.69

Sun: Altitude: 47.93 Azimuth: 37.19

Moon: Altitude: -41.18 Azimuth: 234.45

Gal. latitude: -30.406171 Gal. longitude: 100.872944

Dist. to Sun: 53.545614

Dist. to Moon: 138.965356

Moon coord.: (213.582331 d, -17.054157 d)

Sun coord.: (48.221620 d, 17.923343 d)

Lunar disk: 0.985258

Lunar phase: 13.947970

Lunar bright limb: 275.851456

No SN in this field
Recent coverage and limits telegrams
#######################################################################################
#######################################################################################

  ID = 8132
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 GRB230510.89 (trigger No 705446499,00h 18m 07.20s , +30d 03m 00.0s, R=1) errorbox  24859 sec after notice time and 24865 sec after trigger time at 2023-05-11 04:15:59 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -13.2 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the FERMI GRB230510.89 errorbox  74549 sec after notice time and 74554 sec after trigger time at 2023-05-11 18:04:08 UT, with upper limit up to  15.5 mag. Observations started at twilight.  The observations began at zenith distance = 70 deg. The sun  altitude  is -13.8 deg. 

The galactic latitude b = -32 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2215917

We obtain a following upper limits.  

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

   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   25198 | 2023-05-11 04:21:02 |         MASTER-SAAO | (00h 20m 47.13s , +29d 25m 15.6s) |   C |    60 | 13.8 |        
   74585 | 2023-05-11 18:04:08 |         MASTER-Amur | (00h 06m 04.73s , +29d 47m 48.3s) |   C |    60 | 15.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8137
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 GRB230510.89 (trigger No 705446499,00h 18m 07.20s , +30d 03m 00.0s, R=1) errorbox  24859 sec after notice time and 24865 sec after trigger time at 2023-05-11 04:15:59 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -13.2 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the FERMI GRB230510.89 errorbox  74549 sec after notice time and 74554 sec after trigger time at 2023-05-11 18:04:08 UT, with upper limit up to  15.5 mag. Observations started at twilight.  The observations began at zenith distance = 70 deg. The sun  altitude  is -13.8 deg. 

The galactic latitude b = -32 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2215917

We obtain a following upper limits.  

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

   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   25198 | 2023-05-11 04:21:02 |         MASTER-SAAO | (00h 20m 47.13s , +29d 25m 15.6s) |   C |    60 | 13.8 |        
   74585 | 2023-05-11 18:04:08 |         MASTER-Amur | (00h 06m 04.73s , +29d 47m 48.3s) |   C |    60 | 15.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8121
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 GRB230510.89 (trigger No 705446499,00h 18m 07.20s , +30d 03m 00.0s, R=1) errorbox  24859 sec after notice time and 24865 sec after trigger time at 2023-05-11 04:15:59 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -13.2 deg. 

The galactic latitude b = -32 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2215917

We obtain a following upper limits.  

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

   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   25198 | 2023-05-11 04:21:02 |         MASTER-SAAO | (00h 20m 47.13s , +29d 25m 15.6s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8122
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 GRB230510.89 (trigger No 705446499,00h 18m 07.20s , +30d 03m 00.0s, R=1) errorbox  24859 sec after notice time and 24865 sec after trigger time at 2023-05-11 04:15:59 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -13.2 deg. 

The galactic latitude b = -32 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2215917

We obtain a following upper limits.  

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

   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   25198 | 2023-05-11 04:21:02 |         MASTER-SAAO | (00h 20m 47.13s , +29d 25m 15.6s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8123
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 GRB230510.89 (trigger No 705446499,00h 18m 07.20s , +30d 03m 00.0s, R=1) errorbox  24859 sec after notice time and 24865 sec after trigger time at 2023-05-11 04:15:59 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -13.2 deg. 

The galactic latitude b = -32 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2215917

We obtain a following upper limits.  

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

   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24896 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   25198 | 2023-05-11 04:21:02 |         MASTER-SAAO | (00h 20m 47.13s , +29d 25m 15.6s) |   C |    60 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8128
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) started inspect of the MAXI GRB230510.89 (trigger No 20230510,00h 03m 12.00s , +27d 43m 10.2s, R=1) errorbox 22687 sec after trigger time at 2023-05-11 03:40:10 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -20.7 deg. 

The galactic latitude b = -34 deg., longitude l = 111 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2216031

We obtain a following upper limits.  

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

   22778 | 2023-05-11 03:40:10 |         MASTER-SAAO | (23h 57m 40.28s , +26d 46m 02.2s) |   C |   180 | 15.6 |        
   22778 | 2023-05-11 03:40:10 |         MASTER-SAAO | (23h 56m 46.06s , +26d 46m 20.8s) |   C |   180 | 16.2 |        
   23849 | 2023-05-11 03:58:01 |         MASTER-SAAO | (23h 57m 41.58s , +26d 45m 33.3s) |   C |   180 | 16.9 |        
   23849 | 2023-05-11 03:58:01 |         MASTER-SAAO | (23h 56m 50.54s , +26d 46m 24.3s) |   C |   180 | 17.2 |        
   24867 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24867 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8133
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 MAXI GRB230510.89 (trigger No 20230510,00h 03m 12.00s , +27d 43m 10.2s, R=1) errorbox 22687 sec after trigger time at 2023-05-11 03:40:10 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -20.7 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the MAXI GRB230510.89 errorbox  37269 sec after notice time and 72889 sec after trigger time at 2023-05-11 17:36:52 UT, with upper limit up to  15.9 mag. Observations started at twilight.  The observations began at zenith distance = 75 deg. The sun  altitude  is -16.3 deg. 

The galactic latitude b = -34 deg., longitude l = 111 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2216031

We obtain a following upper limits.  

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

   22778 | 2023-05-11 03:40:10 |         MASTER-SAAO | (23h 57m 40.28s , +26d 46m 02.2s) |   C |   180 | 15.6 |        
   22778 | 2023-05-11 03:40:10 |         MASTER-SAAO | (23h 56m 46.06s , +26d 46m 20.8s) |   C |   180 | 16.2 |        
   23849 | 2023-05-11 03:58:01 |         MASTER-SAAO | (23h 57m 41.58s , +26d 45m 33.3s) |   C |   180 | 16.9 |        
   23849 | 2023-05-11 03:58:01 |         MASTER-SAAO | (23h 56m 50.54s , +26d 46m 24.3s) |   C |   180 | 17.2 |        
   24867 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 10m 43.55s , +29d 26m 26.1s) |   C |    60 | 15.4 |        
   24867 | 2023-05-11 04:15:59 |         MASTER-SAAO | (00h 11m 34.98s , +29d 25m 36.2s) |   C |    60 | 15.1 |        
   72980 | 2023-05-11 17:36:52 |         MASTER-Amur | (00h 04m 44.85s , +27d 50m 02.4s) |   C |   180 | 15.9 |        
   73179 | 2023-05-11 17:40:12 |         MASTER-Amur | (00h 04m 45.31s , +27d 50m 59.8s) |   C |   180 | 15.9 |        
   73379 | 2023-05-11 17:43:31 |         MASTER-Amur | (00h 04m 49.93s , +27d 49m 55.6s) |   C |   180 | 15.8 |        
   74397 | 2023-05-11 18:01:29 |         MASTER-Amur | (23h 52m 12.52s , +27d 55m 12.3s) |   C |    60 | 15.8 |        
   74476 | 2023-05-11 18:02:49 |         MASTER-Amur | (23h 56m 42.47s , +29d 47m 14.8s) |   C |    60 | 15.8 |        
   74556 | 2023-05-11 18:04:08 |         MASTER-Amur | (00h 06m 04.73s , +29d 47m 48.3s) |   C |    60 | 15.5 |        
Filter C is a clear (unfiltred) band. 


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

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