MASTER Net MASTER Database: GRB230723.49 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 GRB230723.49
Trignum 711805358
Trigger time 2023-07-23 11:42:33.03
Notice time 2023-07-23 11:43:28.039529
Coord, eb (16h 37m 26.40s , -08d 14m 24.0s) , 3.11
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You are viewing outdated information, relevant error box is here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
2243778 2023-07-23 11:52:02.795022 16h 37m 21.60s -08d 20m 24.0s FERMI 3.59 alert 711805358 4 115 alert
2243757 2023-07-23 11:43:28.039529 16h 37m 26.40s -08d 14m 24.0s FERMI 3.11 alert 711805358 3 112 alert
2243750 2023-07-23 11:43:19.450949 16h 37m 07.92s -01d 55m 01.2s FERMI 6.95 alert 711805358 45 111 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

2023-07-23 11:42:33 (JD 2460148.987882)

Siderial time 10.280971 h

Ra 16:37:26.40 Dec -8:14:24.00
(249.360000d, -8.240000d)

Rise 2023-07-23 15:47:55

Transit 2023-07-23 21:02:05

Set 2023-07-24 02:16:16

Amur

Object: Altitude: 31.26 Azimuth: 353.88

Sun: Altitude: -2.93 Azimuth: 126.99

Moon: Altitude: 18.95 Azimuth: 67.40

Tunka

Object: Altitude: 24.76 Azimuth: 327.32

Sun: Altitude: 11.29 Azimuth: 108.31

Moon: Altitude: 30.76 Azimuth: 43.70

Kislovodsk

Object: Altitude: -5.86 Azimuth: 275.81

Sun: Altitude: 51.33 Azimuth: 64.34

Moon: Altitude: 42.19 Azimuth: 326.54

Tavrida

Object: Altitude: -11.99 Azimuth: 269.76

Sun: Altitude: 56.02 Azimuth: 52.94

Moon: Altitude: 37.65 Azimuth: 317.10

SAAO

Object: Altitude: -13.63 Azimuth: 289.17

Sun: Altitude: 35.51 Azimuth: 162.45

Moon: Altitude: 35.37 Azimuth: 241.57

IAC

Object: Altitude: -54.79 Azimuth: 241.27

Sun: Altitude: 68.25 Azimuth: 287.11

Moon: Altitude: 6.52 Azimuth: 272.35

Argentina

Object: Altitude: -44.73 Azimuth: 31.60

Sun: Altitude: 1.45 Azimuth: 245.10

Moon: Altitude: -38.34 Azimuth: 297.62

Mexico

Object: Altitude: -27.19 Azimuth: 96.96

Sun: Altitude: -10.11 Azimuth: 238.96

Moon: Altitude: -57.80 Azimuth: 185.59

Ural

Object: Altitude: 2.02 Azimuth: 288.53

Sun: Altitude: 36.16 Azimuth: 69.94

Moon: Altitude: 33.70 Azimuth: 351.46

Vostryakovo

Object: Altitude: -9.58 Azimuth: 270.64

Sun: Altitude: 47.30 Azimuth: 47.46

Moon: Altitude: 30.82 Azimuth: 325.85

Gal. latitude: 24.278709 Gal. longitude: 8.738296

Dist. to Sun: 127.582658

Dist. to Moon: 66.551650

Moon coord.: (183.233933 d, 1.023963 d)

Sun coord.: (122.253640 d, 20.141570 d)

Lunar disk: 0.270336

Lunar phase: 117.343738

Lunar bright limb: 292.266695

No SN in this field

2023-07-23 11:43:28 (JD 2460148.988519)

Siderial time 10.296290 h

Ra 16:37:26.40 Dec -8:14:24.00
(249.360000d, -8.240000d)

Rise 2023-07-23 15:47:55

Transit 2023-07-23 21:02:05

Set 2023-07-24 02:16:16

Amur

Object: Altitude: 31.28 Azimuth: 354.15

Sun: Altitude: -3.05 Azimuth: 127.17

Moon: Altitude: 18.82 Azimuth: 67.59

Tunka

Object: Altitude: 24.84 Azimuth: 327.56

Sun: Altitude: 11.16 Azimuth: 108.48

Moon: Altitude: 30.66 Azimuth: 43.94

Kislovodsk

Object: Altitude: -5.69 Azimuth: 275.97

Sun: Altitude: 51.18 Azimuth: 64.59

Moon: Altitude: 42.28 Azimuth: 326.82

Tavrida

Object: Altitude: -11.83 Azimuth: 269.92

Sun: Altitude: 55.89 Azimuth: 53.24

Moon: Altitude: 37.76 Azimuth: 317.35

SAAO

Object: Altitude: -13.45 Azimuth: 289.04

Sun: Altitude: 35.45 Azimuth: 162.20

Moon: Altitude: 35.54 Azimuth: 241.39

IAC

Object: Altitude: -54.61 Azimuth: 241.52

Sun: Altitude: 68.44 Azimuth: 287.36

Moon: Altitude: 6.71 Azimuth: 272.46

Argentina

Object: Altitude: -44.84 Azimuth: 31.31

Sun: Altitude: 1.62 Azimuth: 244.98

Moon: Altitude: -38.17 Azimuth: 297.43

Mexico

Object: Altitude: -27.38 Azimuth: 97.09

Sun: Altitude: -9.94 Azimuth: 239.10

Moon: Altitude: -57.78 Azimuth: 186.01

Ural

Object: Altitude: 2.14 Azimuth: 288.73

Sun: Altitude: 36.04 Azimuth: 70.16

Moon: Altitude: 33.71 Azimuth: 351.73

Vostryakovo

Object: Altitude: -9.45 Azimuth: 270.83

Sun: Altitude: 47.21 Azimuth: 47.74

Moon: Altitude: 30.89 Azimuth: 326.10

Gal. latitude: 24.278709 Gal. longitude: 8.738296

Dist. to Sun: 127.582078

Dist. to Moon: 66.544393

Moon coord.: (183.240695 d, 1.020378 d)

Sun coord.: (122.254273 d, 20.141441 d)

Lunar disk: 0.270391

Lunar phase: 117.336719

Lunar bright limb: 292.267178

No SN in this field

2023-07-23 12:43:28 (JD 2460149.030185)

Siderial time 11.299028 h

Ra 16:37:26.40 Dec -8:14:24.00
(249.360000d, -8.240000d)

Rise 2023-07-24 15:43:59

Transit 2023-07-24 20:58:09

Set 2023-07-25 02:12:20

Amur

Object: Altitude: 30.80 Azimuth: 11.53

Sun: Altitude: -10.02 Azimuth: 139.49

Moon: Altitude: 9.71 Azimuth: 79.37

Tunka

Object: Altitude: 28.68 Azimuth: 343.68

Sun: Altitude: 2.70 Azimuth: 119.83

Moon: Altitude: 23.44 Azimuth: 58.20

Kislovodsk

Object: Altitude: 4.95 Azimuth: 286.38

Sun: Altitude: 40.90 Azimuth: 78.54

Moon: Altitude: 46.25 Azimuth: 346.50

Tavrida

Object: Altitude: -1.20 Azimuth: 280.43

Sun: Altitude: 46.50 Azimuth: 70.12

Moon: Altitude: 43.32 Azimuth: 335.16

SAAO

Object: Altitude: -1.17 Azimuth: 280.53

Sun: Altitude: 29.98 Azimuth: 146.76

Moon: Altitude: 45.76 Azimuth: 227.59

IAC

Object: Altitude: -42.32 Azimuth: 254.33

Sun: Altitude: 79.67 Azimuth: 320.75

Moon: Altitude: 19.37 Azimuth: 279.95

Argentina

Object: Altitude: -49.43 Azimuth: 10.41

Sun: Altitude: 12.74 Azimuth: 236.26

Moon: Altitude: -26.53 Azimuth: 286.95

Mexico

Object: Altitude: -39.99 Azimuth: 106.66

Sun: Altitude: 1.53 Azimuth: 247.30

Moon: Altitude: -53.95 Azimuth: 211.29

Ural

Object: Altitude: 9.53 Azimuth: 301.73

Sun: Altitude: 28.09 Azimuth: 83.91

Moon: Altitude: 33.41 Azimuth: 9.27

Vostryakovo

Object: Altitude: -0.99 Azimuth: 283.14

Sun: Altitude: 40.12 Azimuth: 64.63

Moon: Altitude: 34.23 Azimuth: 342.98

Gal. latitude: 24.278709 Gal. longitude: 8.738296

Dist. to Sun: 127.544121

Dist. to Moon: 66.069368

Moon coord.: (183.683366 d, 0.785674 d)

Sun coord.: (122.295672 d, 20.132992 d)

Lunar disk: 0.273961

Lunar phase: 116.877141

Lunar bright limb: 292.297580

No SN in this field

2025-05-02 21:49:48 (JD 2460798.409583)

Siderial time 15.075190 h

Ra 16:37:26.40 Dec -8:14:24.00
(249.360000d, -8.240000d)

Rise 2025-05-03 21:04:21

Transit 2025-05-04 02:18:32

Set 2025-05-03 07:36:39

Amur

Object: Altitude: 8.07 Azimuth: 66.58

Sun: Altitude: 15.74 Azimuth: 264.45

Moon: Altitude: -11.15 Azimuth: 199.50

Tunka

Object: Altitude: 19.91 Azimuth: 45.01

Sun: Altitude: 1.33 Azimuth: 246.14

Moon: Altitude: -11.93 Azimuth: 177.24

Kislovodsk

Object: Altitude: 35.42 Azimuth: 337.55

Sun: Altitude: -29.83 Azimuth: 192.34

Moon: Altitude: 0.96 Azimuth: 126.55

Tavrida

Object: Altitude: 31.77 Azimuth: 328.30

Sun: Altitude: -29.67 Azimuth: 182.87

Moon: Altitude: 6.58 Azimuth: 120.78

SAAO

Object: Altitude: 45.78 Azimuth: 245.90

Sun: Altitude: -70.61 Azimuth: 32.32

Moon: Altitude: -17.40 Azimuth: 110.45

IAC

Object: Altitude: 7.05 Azimuth: 283.33

Sun: Altitude: -26.17 Azimuth: 127.16

Moon: Altitude: 39.41 Azimuth: 101.94

Argentina

Object: Altitude: -27.85 Azimuth: 301.22

Sun: Altitude: 0.66 Azimuth: 108.83

Moon: Altitude: 31.82 Azimuth: 175.15

Mexico

Object: Altitude: -65.77 Azimuth: 201.56

Sun: Altitude: 51.91 Azimuth: 74.89

Moon: Altitude: 57.78 Azimuth: 269.33

Ural

Object: Altitude: 24.71 Azimuth: 358.57

Sun: Altitude: -13.73 Azimuth: 207.86

Moon: Altitude: 2.00 Azimuth: 139.34

Vostryakovo

Object: Altitude: 23.54 Azimuth: 335.01

Sun: Altitude: -18.85 Azimuth: 186.50

Moon: Altitude: 10.07 Azimuth: 122.18

Gal. latitude: 24.278709 Gal. longitude: 8.738296

Dist. to Sun: 150.330202

Dist. to Moon: 133.523725

Moon coord.: (114.585832 d, 26.215831 d)

Sun coord.: (39.938690 d, 15.558743 d)

Lunar disk: 0.327444

Lunar phase: 110.188690

Lunar bright limb: 277.877946

No SN in this field
Recent coverage and limits telegrams

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

  ID = 8553
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 230723B ( J.Mangan et al., GCN 34249) errorbox  18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to  20.0 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -13.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 230723B errorbox  46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = 24 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2243754

We obtain a following upper limits.  

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

   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) |   C |   180 | 18.1 |        
   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   180 | 19.1 |        
   19170 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   540 | 19.9 |  Coadd 
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) |   C |   180 | 18.4 |        
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) |   C |   180 | 19.3 |        
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) |   C |   180 | 17.3 |        
   19581 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) |   C |   540 | 19.7 |  Coadd 
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) |   C |   180 | 19.3 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) |   C |   180 | 19.4 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   180 | 19.4 |        
   19793 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   540 | 20.0 |  Coadd 
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) |   C |   180 | 19.4 |        
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) |   C |   180 | 19.4 |        
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) |   C |   180 | 19.5 |        
   20215 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) |   C |   540 | 20.0 |  Coadd 
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) |   C |   180 | 19.5 |        
   20426 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) |   C |   540 | 19.9 |  Coadd 
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) |   C |   180 | 19.3 |        
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) |   C |   180 | 19.3 |        
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) |   C |   180 | 19.5 |        
   20849 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) |   C |   540 | 20.0 |  Coadd 
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) |   C |   180 | 19.5 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) |   C |   180 | 19.4 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) |   C |   180 | 19.4 |        
   21059 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) |   C |   540 | 20.0 |  Coadd 
   21090 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) |   C |   180 | 19.3 |        
   21091 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) |   C |   180 | 19.4 |        
   21303 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) |   C |   180 | 19.2 |        
   21483 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) |   C |   540 | 20.0 |  Coadd 
   21303 | 2023-07-23 17:36:06 |         MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) |   C |   180 | 19.3 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) |   C |   180 | 19.5 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   180 | 19.4 |        
   21695 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   540 | 20.0 |  Coadd 
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) |   C |   180 | 19.4 |        
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) |   C |   180 | 19.5 |        
   46279 | 2023-07-24 00:32:21 |         MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8549
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 230723B ( J.Mangan et al., GCN 34249) errorbox  18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to  20.0 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -13.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 230723B errorbox  46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = 24 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2243751

We obtain a following upper limits.  

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

   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) |   C |   180 | 18.1 |        
   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   180 | 19.1 |        
   19170 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   540 | 19.9 |  Coadd 
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) |   C |   180 | 18.4 |        
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) |   C |   180 | 19.3 |        
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) |   C |   180 | 17.3 |        
   19581 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) |   C |   540 | 19.7 |  Coadd 
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) |   C |   180 | 19.3 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) |   C |   180 | 19.4 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   180 | 19.4 |        
   19793 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   540 | 20.0 |  Coadd 
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) |   C |   180 | 19.4 |        
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) |   C |   180 | 19.4 |        
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) |   C |   180 | 19.5 |        
   20215 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) |   C |   540 | 20.0 |  Coadd 
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) |   C |   180 | 19.5 |        
   20426 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) |   C |   540 | 19.9 |  Coadd 
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) |   C |   180 | 19.3 |        
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) |   C |   180 | 19.3 |        
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) |   C |   180 | 19.5 |        
   20849 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) |   C |   540 | 20.0 |  Coadd 
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) |   C |   180 | 19.5 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) |   C |   180 | 19.4 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) |   C |   180 | 19.4 |        
   21059 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) |   C |   540 | 20.0 |  Coadd 
   21090 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) |   C |   180 | 19.3 |        
   21091 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) |   C |   180 | 19.4 |        
   21303 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) |   C |   180 | 19.2 |        
   21483 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) |   C |   540 | 20.0 |  Coadd 
   21303 | 2023-07-23 17:36:06 |         MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) |   C |   180 | 19.3 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) |   C |   180 | 19.5 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   180 | 19.4 |        
   21695 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   540 | 20.0 |  Coadd 
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) |   C |   180 | 19.4 |        
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) |   C |   180 | 19.5 |        
   46279 | 2023-07-24 00:32:21 |         MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8541
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 GRB230723.49 (trigger No 711805358,16h 37m 21.60s , -08d 20m 24.0s, R=3.59) errorbox  18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to  20.0 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -13.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB230723.49 errorbox  46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = 24 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2243778

We obtain a following upper limits.  

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

   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) |   C |   180 | 18.1 |        
   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   180 | 19.1 |        
   19170 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   540 | 19.9 |  Coadd 
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) |   C |   180 | 18.4 |        
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) |   C |   180 | 19.3 |        
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) |   C |   180 | 17.3 |        
   19581 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) |   C |   540 | 19.7 |  Coadd 
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) |   C |   180 | 19.3 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) |   C |   180 | 19.4 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   180 | 19.4 |        
   19793 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   540 | 20.0 |  Coadd 
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) |   C |   180 | 19.4 |        
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) |   C |   180 | 19.4 |        
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) |   C |   180 | 19.5 |        
   20215 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) |   C |   540 | 20.0 |  Coadd 
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) |   C |   180 | 19.5 |        
   20426 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) |   C |   540 | 19.9 |  Coadd 
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) |   C |   180 | 19.3 |        
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) |   C |   180 | 19.3 |        
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) |   C |   180 | 19.5 |        
   20849 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) |   C |   540 | 20.0 |  Coadd 
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) |   C |   180 | 19.5 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) |   C |   180 | 19.4 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) |   C |   180 | 19.4 |        
   21059 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) |   C |   540 | 20.0 |  Coadd 
   21090 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) |   C |   180 | 19.3 |        
   21091 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) |   C |   180 | 19.4 |        
   21303 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) |   C |   180 | 19.2 |        
   21483 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) |   C |   540 | 20.0 |  Coadd 
   21303 | 2023-07-23 17:36:06 |         MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) |   C |   180 | 19.3 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) |   C |   180 | 19.5 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   180 | 19.4 |        
   21695 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   540 | 20.0 |  Coadd 
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) |   C |   180 | 19.4 |        
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) |   C |   180 | 19.5 |        
   46279 | 2023-07-24 00:32:21 |         MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8540
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 GRB230723.49 (trigger No 711805358,16h 37m 21.60s , -08d 20m 24.0s, R=3.59) errorbox  18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to  20.0 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -13.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB230723.49 errorbox  46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = 24 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2243778

We obtain a following upper limits.  

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

   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) |   C |   180 | 18.1 |        
   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   180 | 19.1 |        
   19170 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   540 | 19.9 |  Coadd 
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) |   C |   180 | 18.4 |        
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) |   C |   180 | 19.3 |        
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) |   C |   180 | 17.3 |        
   19581 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) |   C |   540 | 19.7 |  Coadd 
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) |   C |   180 | 19.3 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) |   C |   180 | 19.4 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   180 | 19.4 |        
   19793 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   540 | 20.0 |  Coadd 
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) |   C |   180 | 19.4 |        
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) |   C |   180 | 19.4 |        
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) |   C |   180 | 19.5 |        
   20215 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) |   C |   540 | 20.0 |  Coadd 
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) |   C |   180 | 19.5 |        
   20426 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) |   C |   540 | 19.9 |  Coadd 
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) |   C |   180 | 19.3 |        
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) |   C |   180 | 19.3 |        
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) |   C |   180 | 19.5 |        
   20849 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) |   C |   540 | 20.0 |  Coadd 
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) |   C |   180 | 19.5 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) |   C |   180 | 19.4 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) |   C |   180 | 19.4 |        
   21059 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) |   C |   540 | 20.0 |  Coadd 
   21090 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) |   C |   180 | 19.3 |        
   21091 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) |   C |   180 | 19.4 |        
   21303 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) |   C |   180 | 19.2 |        
   21483 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) |   C |   540 | 20.0 |  Coadd 
   21303 | 2023-07-23 17:36:06 |         MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) |   C |   180 | 19.3 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) |   C |   180 | 19.5 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   180 | 19.4 |        
   21695 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   540 | 20.0 |  Coadd 
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) |   C |   180 | 19.4 |        
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) |   C |   180 | 19.5 |        
   46279 | 2023-07-24 00:32:21 |         MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8539
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 GRB230723.49 (trigger No 711805358,16h 37m 21.60s , -08d 20m 24.0s, R=3.59) errorbox  18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to  20.0 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -13.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB230723.49 errorbox  46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = 24 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2243778

We obtain a following upper limits.  

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

   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) |   C |   180 | 18.1 |        
   18990 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   180 | 19.1 |        
   19170 | 2023-07-23 16:57:33 |         MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) |   C |   540 | 19.9 |  Coadd 
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) |   C |   180 | 18.4 |        
   19201 | 2023-07-23 17:01:03 |         MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) |   C |   180 | 19.3 |        
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) |   C |   180 | 17.3 |        
   19581 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) |   C |   540 | 19.7 |  Coadd 
   19401 | 2023-07-23 17:04:23 |         MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) |   C |   180 | 19.3 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) |   C |   180 | 19.4 |        
   19613 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   180 | 19.4 |        
   19793 | 2023-07-23 17:07:55 |         MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) |   C |   540 | 20.0 |  Coadd 
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) |   C |   180 | 19.4 |        
   19823 | 2023-07-23 17:11:26 |         MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) |   C |   180 | 19.4 |        
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) |   C |   180 | 19.5 |        
   20215 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) |   C |   540 | 20.0 |  Coadd 
   20035 | 2023-07-23 17:14:58 |         MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) |   C |   180 | 19.5 |        
   20246 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) |   C |   180 | 19.5 |        
   20426 | 2023-07-23 17:18:29 |         MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) |   C |   540 | 19.9 |  Coadd 
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) |   C |   180 | 19.3 |        
   20457 | 2023-07-23 17:22:00 |         MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) |   C |   180 | 19.3 |        
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) |   C |   180 | 19.5 |        
   20849 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) |   C |   540 | 20.0 |  Coadd 
   20669 | 2023-07-23 17:25:31 |         MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) |   C |   180 | 19.5 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) |   C |   180 | 19.4 |        
   20879 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) |   C |   180 | 19.4 |        
   21059 | 2023-07-23 17:29:02 |         MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) |   C |   540 | 20.0 |  Coadd 
   21090 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) |   C |   180 | 19.3 |        
   21091 | 2023-07-23 17:32:33 |         MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) |   C |   180 | 19.4 |        
   21303 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) |   C |   180 | 19.2 |        
   21483 | 2023-07-23 17:36:05 |         MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) |   C |   540 | 20.0 |  Coadd 
   21303 | 2023-07-23 17:36:06 |         MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) |   C |   180 | 19.3 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) |   C |   180 | 19.5 |        
   21515 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   180 | 19.4 |        
   21695 | 2023-07-23 17:39:37 |         MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) |   C |   540 | 20.0 |  Coadd 
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) |   C |   180 | 19.4 |        
   21726 | 2023-07-23 17:43:09 |         MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) |   C |   180 | 19.4 |        
   21937 | 2023-07-23 17:46:40 |         MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) |   C |   180 | 19.5 |        
   22149 | 2023-07-23 17:50:12 |         MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) |   C |   180 | 19.5 |        
   46279 | 2023-07-24 00:32:21 |         MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2025