MASTER Net MASTER Database: GRB230805.47 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name SWIFT GRB230805.47
Trignum 1183217
Trigger time 2023-08-05 11:23:51.07
Notice time 2023-08-05 11:25:23.165208
Coord, eb (13h 50m 59.18s , +31d 11m 05.3s) , 0.05
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
2250488 2023-08-05 11:27:50.457423 13h 50m 51.19s +31d 12m 35.6s SWIFT 0 alert 1183217 2 68 alert
2250513 2023-08-05 11:42:50.253976 13h 50m 58.32s +31d 11m 27.6s SWIFT 0.0005 alert 1183217 2 67 alert
2250484 2023-08-05 11:25:23.165208 13h 50m 59.18s +31d 11m 05.3s SWIFT 0.05 alert 1183217 1 61 alert

DAYS:

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

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

2023-08-05 11:23:51 (JD 2460161.974896)

Siderial time 10.822678 h

Ra 13:51:00.00 Dec 31:11:05.30
(207.746583d, 31.184806d)

Rise 2023-08-05 07:04:55

Transit 2023-08-05 17:24:58

Set 2023-08-05 03:48:58

Amur

Object: Altitude: 52.04 Azimuth: 76.91

Sun: Altitude: -3.08 Azimuth: 121.67

Moon: Altitude: -14.31 Azimuth: 252.13

Tunka

Object: Altitude: 64.67 Azimuth: 43.26

Sun: Altitude: 11.61 Azimuth: 102.90

Moon: Altitude: -26.97 Azimuth: 229.72

Kislovodsk

Object: Altitude: 55.89 Azimuth: 277.76

Sun: Altitude: 51.87 Azimuth: 55.83

Moon: Altitude: -43.50 Azimuth: 155.21

Tavrida

Object: Altitude: 49.74 Azimuth: 272.40

Sun: Altitude: 55.89 Azimuth: 43.45

Moon: Altitude: -39.61 Azimuth: 145.02

SAAO

Object: Altitude: 3.41 Azimuth: 229.31

Sun: Altitude: 39.53 Azimuth: 166.84

Moon: Altitude: -40.71 Azimuth: 56.90

IAC

Object: Altitude: 6.93 Azimuth: 238.20

Sun: Altitude: 62.98 Azimuth: 288.80

Moon: Altitude: -11.66 Azimuth: 96.36

Argentina

Object: Altitude: -66.48 Azimuth: 264.15

Sun: Altitude: -0.42 Azimuth: 250.08

Moon: Altitude: 32.78 Azimuth: 113.51

Mexico

Object: Altitude: -26.48 Azimuth: 167.19

Sun: Altitude: -15.41 Azimuth: 238.59

Moon: Altitude: 57.68 Azimuth: 17.76

Ural

Object: Altitude: 59.47 Azimuth: 317.85

Sun: Altitude: 35.82 Azimuth: 63.39

Moon: Altitude: -32.98 Azimuth: 179.18

Vostryakovo

Object: Altitude: 50.22 Azimuth: 288.38

Sun: Altitude: 46.29 Azimuth: 39.84

Moon: Altitude: -31.69 Azimuth: 153.37

Gal. latitude: 75.979106 Gal. longitude: 52.361691

Dist. to Sun: 66.809614

Dist. to Moon: 142.075347

Moon coord.: (4.950646 d, -0.015582 d)

Sun coord.: (134.946736 d, 17.064066 d)

Lunar disk: 0.808022

Lunar phase: 51.972133

Lunar bright limb: 68.176437

No SN in this field

2023-08-05 11:25:23 (JD 2460161.975961)

Siderial time 10.848304 h

Ra 13:51:00.00 Dec 31:11:05.30
(207.746583d, 31.184806d)

Rise 2023-08-05 07:04:55

Transit 2023-08-05 17:24:58

Set 2023-08-05 03:48:58

Amur

Object: Altitude: 51.80 Azimuth: 77.28

Sun: Altitude: -3.29 Azimuth: 121.98

Moon: Altitude: -14.07 Azimuth: 252.43

Tunka

Object: Altitude: 64.51 Azimuth: 43.93

Sun: Altitude: 11.38 Azimuth: 103.19

Moon: Altitude: -26.79 Azimuth: 230.08

Kislovodsk

Object: Altitude: 56.17 Azimuth: 278.09

Sun: Altitude: 51.64 Azimuth: 56.29

Moon: Altitude: -43.61 Azimuth: 155.70

Tavrida

Object: Altitude: 50.01 Azimuth: 272.69

Sun: Altitude: 55.70 Azimuth: 44.01

Moon: Altitude: -39.75 Azimuth: 145.46

SAAO

Object: Altitude: 3.66 Azimuth: 229.09

Sun: Altitude: 39.45 Azimuth: 166.37

Moon: Altitude: -40.98 Azimuth: 56.56

IAC

Object: Altitude: 7.22 Azimuth: 238.36

Sun: Altitude: 63.30 Azimuth: 289.20

Moon: Altitude: -11.98 Azimuth: 96.55

Argentina

Object: Altitude: -66.15 Azimuth: 264.02

Sun: Altitude: -0.11 Azimuth: 249.88

Moon: Altitude: 32.48 Azimuth: 113.24

Mexico

Object: Altitude: -26.55 Azimuth: 167.55

Sun: Altitude: -15.12 Azimuth: 238.83

Moon: Altitude: 57.59 Azimuth: 18.43

Ural

Object: Altitude: 59.61 Azimuth: 318.44

Sun: Altitude: 35.64 Azimuth: 63.78

Moon: Altitude: -32.97 Azimuth: 179.62

Vostryakovo

Object: Altitude: 50.43 Azimuth: 288.78

Sun: Altitude: 46.15 Azimuth: 40.33

Moon: Altitude: -31.78 Azimuth: 153.79

Gal. latitude: 75.979106 Gal. longitude: 52.361691

Dist. to Sun: 66.808875

Dist. to Moon: 142.076589

Moon coord.: (4.964240 d, -0.008354 d)

Sun coord.: (134.947759 d, 17.063780 d)

Lunar disk: 0.807924

Lunar phase: 51.986411

Lunar bright limb: 68.175201

No SN in this field

2023-08-05 12:25:23 (JD 2460162.017627)

Siderial time 11.851042 h

Ra 13:51:00.00 Dec 31:11:05.30
(207.746583d, 31.184806d)

Rise 2023-08-06 07:00:59

Transit 2023-08-06 17:21:03

Set 2023-08-06 03:45:03

Amur

Object: Altitude: 42.27 Azimuth: 90.02

Sun: Altitude: -10.83 Azimuth: 134.27

Moon: Altitude: -4.80 Azimuth: 263.76

Tunka

Object: Altitude: 56.90 Azimuth: 65.38

Sun: Altitude: 2.61 Azimuth: 114.63

Moon: Altitude: -19.05 Azimuth: 243.43

Kislovodsk

Object: Altitude: 66.61 Azimuth: 294.04

Sun: Altitude: 41.89 Azimuth: 71.74

Moon: Altitude: -45.91 Azimuth: 175.94

Tavrida

Object: Altitude: 60.55 Azimuth: 285.78

Sun: Altitude: 47.13 Azimuth: 62.59

Moon: Altitude: -43.88 Azimuth: 164.18

SAAO

Object: Altitude: 12.56 Azimuth: 219.70

Sun: Altitude: 34.67 Azimuth: 149.40

Moon: Altitude: -50.43 Azimuth: 40.68

IAC

Object: Altitude: 18.83 Azimuth: 244.04

Sun: Altitude: 74.65 Azimuth: 314.70

Moon: Altitude: -24.39 Azimuth: 104.49

Argentina

Object: Altitude: -53.51 Azimuth: 259.27

Sun: Altitude: 11.51 Azimuth: 241.42

Moon: Altitude: 20.63 Azimuth: 103.85

Mexico

Object: Altitude: -27.73 Azimuth: 181.95

Sun: Altitude: -3.66 Azimuth: 247.57

Moon: Altitude: 51.58 Azimuth: 41.40

Ural

Object: Altitude: 63.55 Azimuth: 344.38

Sun: Altitude: 27.93 Azimuth: 78.03

Moon: Altitude: -31.57 Azimuth: 196.72

Vostryakovo

Object: Altitude: 57.99 Azimuth: 306.70

Sun: Altitude: 39.70 Azimuth: 57.88

Moon: Altitude: -34.00 Azimuth: 170.89

Gal. latitude: 75.979106 Gal. longitude: 52.361691

Dist. to Sun: 66.779983

Dist. to Moon: 142.121008

Moon coord.: (5.495852 d, 0.274298 d)

Sun coord.: (134.987792 d, 17.052564 d)

Lunar disk: 0.804071

Lunar phase: 52.544768

Lunar bright limb: 68.128877

No SN in this field

2024-06-13 04:37:11 (JD 2460474.692488)

Siderial time 0.593519 h

Ra 13:51:00.00 Dec 31:11:05.30
(207.746583d, 31.184806d)

Rise 2024-06-13 10:30:20

Transit 2024-06-13 20:50:23

Set 2024-06-13 07:14:23

Amur

Object: Altitude: 12.76 Azimuth: 236.05

Sun: Altitude: 59.80 Azimuth: 32.52

Moon: Altitude: 23.53 Azimuth: 283.45

Tunka

Object: Altitude: 2.50 Azimuth: 218.48

Sun: Altitude: 60.87 Azimuth: 346.11

Moon: Altitude: 8.19 Azimuth: 264.46

Kislovodsk

Object: Altitude: -13.99 Azimuth: 167.74

Sun: Altitude: 31.53 Azimuth: 266.96

Moon: Altitude: -29.79 Azimuth: 214.84

Tavrida

Object: Altitude: -11.38 Azimuth: 160.54

Sun: Altitude: 25.57 Azimuth: 261.87

Moon: Altitude: -32.00 Azimuth: 205.45

SAAO

Object: Altitude: -59.81 Azimuth: 97.43

Sun: Altitude: -11.84 Azimuth: 249.87

Moon: Altitude: -66.14 Azimuth: 338.90

IAC

Object: Altitude: 1.43 Azimuth: 125.09

Sun: Altitude: -17.38 Azimuth: 230.37

Moon: Altitude: -42.76 Azimuth: 139.69

Argentina

Object: Altitude: 8.76 Azimuth: 135.40

Sun: Altitude: -81.42 Azimuth: 358.13

Moon: Altitude: -12.23 Azimuth: 94.10

Mexico

Object: Altitude: 78.75 Azimuth: 94.08

Sun: Altitude: -23.14 Azimuth: 139.28

Moon: Altitude: 32.97 Azimuth: 81.22

Ural

Object: Altitude: -1.74 Azimuth: 182.64

Sun: Altitude: 40.29 Azimuth: 290.93

Moon: Altitude: -12.74 Azimuth: 227.86

Vostryakovo

Object: Altitude: -1.97 Azimuth: 164.11

Sun: Altitude: 28.75 Azimuth: 270.17

Moon: Altitude: -21.37 Azimuth: 207.10

Gal. latitude: 75.979106 Gal. longitude: 52.361691

Dist. to Sun: 105.006637

Dist. to Moon: 46.104020

Moon coord.: (163.595761 d, 9.848604 d)

Sun coord.: (81.654807 d, 23.224856 d)

Lunar disk: 0.403996

Lunar phase: 101.070014

Lunar bright limb: 291.956079

No SN in this field

Recent coverage and limits telegrams

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

  ID = 8635
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 230805B ( S. B. Cenko et al., GCN 34339) errorbox  19680 sec after notice time and 19762 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -10.7 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 230805B errorbox  25600 sec after notice time and 25682 sec after trigger time at 2023-08-05 18:31:53 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance = 47 deg. The sun  altitude  is -14.3 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 230805B errorbox  41560 sec after notice time and 41642 sec after trigger time at 2023-08-05 22:57:53 UT, with upper limit up to  18.3 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = 76 deg., longitude l = 52 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2250484

We obtain a following upper limits.  

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

   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
   20064 |         MASTER-SAAO |   C |   180 | 17.1 |        
   20064 |         MASTER-SAAO |   C |   180 | 16.8 |        
   20244 |         MASTER-SAAO |   C |   540 | 17.6 |  Coadd 
   20275 |         MASTER-SAAO |   C |   180 | 17.5 |        
   20455 |         MASTER-SAAO |   C |   540 | 18.4 |  Coadd 
   20275 |         MASTER-SAAO |   C |   180 | 17.2 |        
   20475 |         MASTER-SAAO |   C |   180 | 17.5 |        
   20475 |         MASTER-SAAO |   C |   180 | 17.3 |        
   20686 |         MASTER-SAAO |   C |   180 | 18.0 |        
   20686 |         MASTER-SAAO |   C |   180 | 17.6 |        
   20866 |         MASTER-SAAO |   C |   540 | 18.3 |  Coadd 
   20898 |         MASTER-SAAO |   C |   180 | 18.0 |        
   20898 |         MASTER-SAAO |   C |   180 | 17.7 |        
   21109 |         MASTER-SAAO |   C |   180 | 18.4 |        
   21109 |         MASTER-SAAO |   C |   180 | 18.0 |        
   22402 |         MASTER-SAAO |   C |   180 | 17.5 |        
   22402 |         MASTER-SAAO |   C |   180 | 17.4 |        
   23693 |         MASTER-SAAO |   C |   180 | 17.4 |        
   23693 |         MASTER-SAAO |   C |   180 | 17.3 |        
   25004 |         MASTER-SAAO |   C |   180 | 14.3 |        
   25004 |         MASTER-SAAO |   C |   180 | 17.4 |        
   25773 |      MASTER-Tavrida |   C |   180 | 18.3 |        
   25961 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26149 |      MASTER-Tavrida |   C |   180 | 19.0 |        
   26263 |         MASTER-SAAO |   C |   180 | 17.0 |        
   26263 |         MASTER-SAAO |   C |   180 | 14.2 |        
   26340 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26529 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26717 |      MASTER-Tavrida |   C |   180 | 18.8 |        
   26909 |      MASTER-Tavrida |   C |   180 | 18.8 |        
   27550 |         MASTER-SAAO |   C |   180 | 16.4 |        
   27550 |         MASTER-SAAO |   C |   180 | 13.3 |        
   28277 |      MASTER-Tavrida |   C |   180 | 18.3 |        
   29111 |         MASTER-SAAO |   C |   180 | 15.7 |        
   29547 |      MASTER-Tavrida |   C |   180 | 17.9 |        
   30904 |      MASTER-Tavrida |   C |   180 | 17.6 |        
   32777 |      MASTER-Tavrida |   C |   180 | 15.0 |        
   41732 |         MASTER-OAFA |   C |   180 | 16.8 |        
   41912 |         MASTER-OAFA |   C |   540 | 17.8 |  Coadd 
   41943 |         MASTER-OAFA |   C |   180 | 17.5 |        
   42155 |         MASTER-OAFA |   C |   180 | 17.8 |        
   42366 |         MASTER-OAFA |   C |   180 | 17.9 |        
   43633 |         MASTER-OAFA |   C |   180 | 18.2 |        
   44913 |         MASTER-OAFA |   C |   180 | 18.2 |        
   46191 |         MASTER-OAFA |   C |   180 | 18.3 |        
   47466 |         MASTER-OAFA |   C |   180 | 18.0 |        
   48758 |         MASTER-OAFA |   C |   180 | 17.6 |        
   50025 |         MASTER-OAFA |   C |   180 | 17.9 |        
   51302 |         MASTER-OAFA |   C |   180 | 16.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8627
TYPE = 35
DAYS = 0.5


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 230805B ( S. B. Cenko et al., GCN 34339) errorbox  19680 sec after notice time and 19762 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -10.7 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 230805B errorbox  25600 sec after notice time and 25682 sec after trigger time at 2023-08-05 18:31:53 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance = 47 deg. The sun  altitude  is -14.3 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SWIFT GRB 230805B errorbox  41560 sec after notice time and 41642 sec after trigger time at 2023-08-05 22:57:53 UT, with upper limit up to  17.9 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = 76 deg., longitude l = 52 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2250484

We obtain a following upper limits.  

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

   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
   20064 |         MASTER-SAAO |   C |   180 | 17.1 |        
   20064 |         MASTER-SAAO |   C |   180 | 16.8 |        
   20244 |         MASTER-SAAO |   C |   540 | 17.6 |  Coadd 
   20275 |         MASTER-SAAO |   C |   180 | 17.5 |        
   20455 |         MASTER-SAAO |   C |   540 | 18.4 |  Coadd 
   20275 |         MASTER-SAAO |   C |   180 | 17.2 |        
   20475 |         MASTER-SAAO |   C |   180 | 17.5 |        
   20475 |         MASTER-SAAO |   C |   180 | 17.3 |        
   20686 |         MASTER-SAAO |   C |   180 | 18.0 |        
   20686 |         MASTER-SAAO |   C |   180 | 17.6 |        
   20866 |         MASTER-SAAO |   C |   540 | 18.3 |  Coadd 
   20898 |         MASTER-SAAO |   C |   180 | 18.0 |        
   20898 |         MASTER-SAAO |   C |   180 | 17.7 |        
   21109 |         MASTER-SAAO |   C |   180 | 18.4 |        
   21109 |         MASTER-SAAO |   C |   180 | 18.0 |        
   22402 |         MASTER-SAAO |   C |   180 | 17.5 |        
   22402 |         MASTER-SAAO |   C |   180 | 17.4 |        
   23693 |         MASTER-SAAO |   C |   180 | 17.4 |        
   23693 |         MASTER-SAAO |   C |   180 | 17.3 |        
   25004 |         MASTER-SAAO |   C |   180 | 14.3 |        
   25004 |         MASTER-SAAO |   C |   180 | 17.4 |        
   25773 |      MASTER-Tavrida |   C |   180 | 18.3 |        
   25961 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26149 |      MASTER-Tavrida |   C |   180 | 19.0 |        
   26263 |         MASTER-SAAO |   C |   180 | 17.0 |        
   26263 |         MASTER-SAAO |   C |   180 | 14.2 |        
   26340 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26529 |      MASTER-Tavrida |   C |   180 | 18.6 |        
   26717 |      MASTER-Tavrida |   C |   180 | 18.8 |        
   26909 |      MASTER-Tavrida |   C |   180 | 18.8 |        
   27550 |         MASTER-SAAO |   C |   180 | 16.4 |        
   27550 |         MASTER-SAAO |   C |   180 | 13.3 |        
   28277 |      MASTER-Tavrida |   C |   180 | 18.3 |        
   29111 |         MASTER-SAAO |   C |   180 | 15.7 |        
   29547 |      MASTER-Tavrida |   C |   180 | 17.9 |        
   30904 |      MASTER-Tavrida |   C |   180 | 17.6 |        
   32777 |      MASTER-Tavrida |   C |   180 | 15.0 |        
   41732 |         MASTER-OAFA |   C |   180 | 16.8 |        
   41912 |         MASTER-OAFA |   C |   540 | 17.8 |  Coadd 
   41943 |         MASTER-OAFA |   C |   180 | 17.5 |        
   42155 |         MASTER-OAFA |   C |   180 | 17.8 |        
   42366 |         MASTER-OAFA |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8619
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 230805B ( S. B. Cenko et al., GCN 34339) errorbox  19680 sec after notice time and 19762 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to  16.6 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -10.7 deg. 

The galactic latitude b = 76 deg., longitude l = 52 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2250484

We obtain a following upper limits.  

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

   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8618
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 230805B ( S. B. Cenko et al., GCN 34339) errorbox  19680 sec after notice time and 19762 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to  16.6 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -10.7 deg. 

The galactic latitude b = 76 deg., longitude l = 52 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2250484

We obtain a following upper limits.  

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

   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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  ID = 8617
TYPE = 34
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 230805B ( S. B. Cenko et al., GCN 34339) errorbox  19680 sec after notice time and 19762 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to  16.6 mag. Observations started at twilight.  The observations began at zenith distance = 66 deg. The sun  altitude  is -10.7 deg. 

The galactic latitude b = 76 deg., longitude l = 52 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2250484

We obtain a following upper limits.  

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

   19853 |         MASTER-SAAO |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



 

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