MASTER Net MASTER Database: LIGO S230617ba 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 LVC S230617ba
GCN Circulars | GCN Notices | GraceDB | VOEvents
Type 150 (last error box)
Trigger time 2023-06-17 22:15:49
Notice time 2023-06-17 22:21:08.350221
Distance 430.607 ± 164.69 Mpc
BNS BHH NSBH Gap Terr
0 11 1 0 86
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
[%] 2.4 3.4 4.9
2023-07-01 22:15:49 336.0 335.9 1052.5
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 2.5 2.9 4.3
2023-06-30 22:15:49 312.0 311.9 941.5
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.4 2.3 3.7
2023-06-29 22:15:49 288.0 287.9 851.4
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.4 2.1 3.4
2023-06-28 22:15:49 264.0 263.9 746.9
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.2 1.9 2.9
2023-06-27 22:15:49 240.0 239.9 572.2
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.3 1.9 2.9
2023-06-26 22:15:49 216.0 215.9 555.6
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.3 1.9 2.7
2023-06-25 22:15:49 192.0 191.9 495.7
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.0 1.7 2.1
2023-06-24 22:15:49 168.0 167.9 331.4
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 1.0 1.6 2.1
2023-06-23 22:15:49 144.0 143.9 319.3
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.7 1.4 1.8
2023-06-22 22:15:49 120.0 119.9 283.9
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.5 0.4 0.6
2023-06-21 22:15:49 96.0 95.9 96.2
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.3 0.3 0.5
2023-06-20 22:15:49 72.0 71.9 82.8
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.3 0.3 0.4
2023-06-19 22:15:49 48.0 47.9 77.5
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.3 0.3 0.4
2023-06-18 22:15:49 24.0 23.9 57.4
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.3 0.2 0.3
2023-06-18 10:15:49 12.0 11.9 48.1
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.0 0.0 0.0
2023-06-18 04:15:49 6.0 5.9 2.0
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 0.0 0.0 0.0
2023-06-17 23:15:49 1.0 0.9 2.0

Map with WFC

Discoveries in this field
No discoveries yet!

Synchronous WFC images
datetime coord2000 observatory camera links
2023-06-17 22:15:45.835 11h 20m 39.00s -32d 48m 08.0s OAFA 111342 Database OAFA
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-'2023-06-17 22:15:49')<'10 minutes'::interval order by gn,seq desc,errorbox asc;
trigger notice notice+1hr now

2023-06-17 22:15:49 (JD 2460113.427650)

Siderial time 18.498758 h

Ra 09:50:12.00 Dec -66:27:00.00
(147.550000d, -66.450000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -64.36 Azimuth: 323.77

Sun: Altitude: 25.01 Azimuth: 262.89

Moon: Altitude: 29.97 Azimuth: 262.47

Tunka

Object: Altitude: -73.47 Azimuth: 338.13

Sun: Altitude: 10.70 Azimuth: 245.59

Moon: Altitude: 15.67 Azimuth: 245.73

Kislovodsk

Object: Altitude: -56.87 Azimuth: 31.22

Sun: Altitude: -21.16 Azimuth: 196.32

Moon: Altitude: -16.70 Azimuth: 198.65

Tavrida

Object: Altitude: -54.42 Azimuth: 33.59

Sun: Altitude: -21.48 Azimuth: 187.97

Moon: Altitude: -17.30 Azimuth: 190.83

SAAO

Object: Altitude: 21.00 Azimuth: 23.18

Sun: Altitude: -79.94 Azimuth: 28.00

Moon: Altitude: -84.63 Azimuth: 15.15

IAC

Object: Altitude: -20.38 Azimuth: 24.41

Sun: Altitude: -24.09 Azimuth: 137.27

Moon: Altitude: -23.14 Azimuth: 142.60

Argentina

Object: Altitude: 52.72 Azimuth: 14.93

Sun: Altitude: -7.91 Azimuth: 112.67

Moon: Altitude: -12.60 Azimuth: 114.35

Mexico

Object: Altitude: -8.48 Azimuth: 352.80

Sun: Altitude: 50.67 Azimuth: 89.79

Moon: Altitude: 48.87 Azimuth: 96.98

Ural

Object: Altitude: -73.91 Azimuth: 42.85

Sun: Altitude: -4.75 Azimuth: 210.64

Moon: Altitude: -0.13 Azimuth: 212.50

Vostryakovo

Object: Altitude: -64.25 Azimuth: 44.68

Sun: Altitude: -10.58 Azimuth: 191.07

Moon: Altitude: -6.38 Azimuth: 193.77

Gal. latitude: -9.772211 Gal. longitude: 286.430473

Dist. to Sun: 100.972777

Dist. to Moon: 105.687940

Moon coord.: (82.248530 d, 27.190880 d)

Sun coord.: (85.801421 d, 23.390069 d)

Lunar disk: 0.001896

Lunar phase: 175.009131

Lunar bright limb: 138.107287

No SN in this field

2023-06-17 22:21:08 (JD 2460113.431343)

Siderial time 18.587612 h

Ra 09:50:12.00 Dec -66:27:00.00
(147.550000d, -66.450000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -63.85 Azimuth: 323.39

Sun: Altitude: 25.86 Azimuth: 263.87

Moon: Altitude: 30.79 Azimuth: 263.40

Tunka

Object: Altitude: -73.16 Azimuth: 336.64

Sun: Altitude: 11.45 Azimuth: 246.56

Moon: Altitude: 16.40 Azimuth: 246.64

Kislovodsk

Object: Altitude: -57.36 Azimuth: 30.87

Sun: Altitude: -20.88 Azimuth: 197.59

Moon: Altitude: -16.39 Azimuth: 199.79

Tavrida

Object: Altitude: -54.94 Azimuth: 33.41

Sun: Altitude: -21.34 Azimuth: 189.27

Moon: Altitude: -17.11 Azimuth: 192.00

SAAO

Object: Altitude: 20.56 Azimuth: 22.86

Sun: Altitude: -80.41 Azimuth: 21.40

Moon: Altitude: -84.81 Azimuth: 2.88

IAC

Object: Altitude: -20.87 Azimuth: 24.64

Sun: Altitude: -24.87 Azimuth: 138.30

Moon: Altitude: -23.81 Azimuth: 143.60

Argentina

Object: Altitude: 52.42 Azimuth: 15.65

Sun: Altitude: -8.96 Azimuth: 112.03

Moon: Altitude: -13.60 Azimuth: 113.78

Mexico

Object: Altitude: -8.34 Azimuth: 353.32

Sun: Altitude: 49.53 Azimuth: 90.47

Moon: Altitude: 47.78 Azimuth: 97.49

Ural

Object: Altitude: -74.40 Azimuth: 42.08

Sun: Altitude: -4.38 Azimuth: 211.81

Moon: Altitude: 0.25 Azimuth: 213.57

Vostryakovo

Object: Altitude: -64.78 Azimuth: 44.65

Sun: Altitude: -10.42 Azimuth: 192.30

Moon: Altitude: -6.19 Azimuth: 194.90

Gal. latitude: -9.772211 Gal. longitude: 286.430473

Dist. to Sun: 100.971609

Dist. to Moon: 105.675379

Moon coord.: (82.299929 d, 27.195925 d)

Sun coord.: (85.805263 d, 23.390171 d)

Lunar disk: 0.001878

Lunar phase: 175.033031

Lunar bright limb: 138.538140

No SN in this field

2023-06-17 23:21:08 (JD 2460113.473009)

Siderial time 19.590350 h

Ra 09:50:12.00 Dec -66:27:00.00
(147.550000d, -66.450000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -57.95 Azimuth: 321.29

Sun: Altitude: 35.42 Azimuth: 275.40

Moon: Altitude: 40.05 Azimuth: 274.37

Tunka

Object: Altitude: -68.52 Azimuth: 324.95

Sun: Altitude: 20.26 Azimuth: 257.57

Moon: Altitude: 24.92 Azimuth: 256.94

Kislovodsk

Object: Altitude: -62.48 Azimuth: 24.61

Sun: Altitude: -16.39 Azimuth: 211.32

Moon: Altitude: -11.76 Azimuth: 212.15

Tavrida

Object: Altitude: -60.57 Azimuth: 29.52

Sun: Altitude: -18.32 Azimuth: 203.55

Moon: Altitude: -13.80 Azimuth: 204.89

SAAO

Object: Altitude: 16.04 Azimuth: 18.71

Sun: Altitude: -76.65 Azimuth: 309.49

Moon: Altitude: -76.70 Azimuth: 289.00

IAC

Object: Altitude: -26.61 Azimuth: 26.52

Sun: Altitude: -32.50 Azimuth: 151.37

Moon: Altitude: -30.17 Azimuth: 156.15

Argentina

Object: Altitude: 48.21 Azimuth: 22.35

Sun: Altitude: -21.03 Azimuth: 105.19

Moon: Altitude: -25.12 Azimuth: 107.72

Mexico

Object: Altitude: -7.51 Azimuth: 359.32

Sun: Altitude: 36.72 Azimuth: 97.41

Moon: Altitude: 35.61 Azimuth: 103.07

Ural

Object: Altitude: -79.10 Azimuth: 25.54

Sun: Altitude: 0.67 Azimuth: 224.62

Moon: Altitude: 5.30 Azimuth: 225.40

Vostryakovo

Object: Altitude: -70.68 Azimuth: 41.81

Sun: Altitude: -7.63 Azimuth: 205.95

Moon: Altitude: -3.17 Azimuth: 207.44

Gal. latitude: -9.772211 Gal. longitude: 286.430473

Dist. to Sun: 100.958420

Dist. to Moon: 105.533008

Moon coord.: (82.880097 d, 27.251530 d)

Sun coord.: (85.848614 d, 23.391319 d)

Lunar disk: 0.001692

Lunar phase: 175.284408

Lunar bright limb: 143.687425

No SN in this field

2024-12-26 20:48:48 (JD 2460671.367222)

Siderial time 5.710592 h

Ra 09:50:12.00 Dec -66:27:00.00
(147.550000d, -66.450000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -28.70 Azimuth: 12.34

Sun: Altitude: -24.11 Azimuth: 278.07

Moon: Altitude: 6.96 Azimuth: 314.76

Tunka

Object: Altitude: -28.29 Azimuth: 1.61

Sun: Altitude: -39.33 Azimuth: 257.70

Moon: Altitude: -6.39 Azimuth: 295.62

Kislovodsk

Object: Altitude: -28.46 Azimuth: 337.60

Sun: Altitude: -69.16 Azimuth: 166.63

Moon: Altitude: -45.42 Azimuth: 254.04

Tavrida

Object: Altitude: -31.83 Azimuth: 334.67

Sun: Altitude: -65.88 Azimuth: 147.98

Moon: Altitude: -50.78 Azimuth: 244.67

SAAO

Object: Altitude: 33.85 Azimuth: 331.85

Sun: Altitude: -28.66 Azimuth: 28.20

Moon: Altitude: -32.02 Azimuth: 332.83

IAC

Object: Altitude: -36.08 Azimuth: 333.62

Sun: Altitude: -32.69 Azimuth: 79.09

Moon: Altitude: -76.04 Azimuth: 120.25

Argentina

Object: Altitude: 8.62 Azimuth: 355.51

Sun: Altitude: 34.26 Azimuth: 81.85

Moon: Altitude: -8.12 Azimuth: 59.46

Mexico

Object: Altitude: -50.32 Azimuth: 18.17

Sun: Altitude: 31.68 Azimuth: 23.79

Moon: Altitude: 2.80 Azimuth: 63.77

Ural

Object: Altitude: -37.05 Azimuth: 341.24

Sun: Altitude: -55.22 Azimuth: 199.35

Moon: Altitude: -31.73 Azimuth: 259.01

Vostryakovo

Object: Altitude: -40.30 Azimuth: 332.53

Sun: Altitude: -57.14 Azimuth: 163.17

Moon: Altitude: -43.55 Azimuth: 238.70

Gal. latitude: -9.772211 Gal. longitude: 286.430473

Dist. to Sun: 82.148550

Dist. to Moon: 65.878799

Moon coord.: (224.402772 d, -20.673720 d)

Sun coord.: (275.703989 d, -23.343070 d)

Lunar disk: 0.162190

Lunar phase: 132.502242

Lunar bright limb: 103.296978

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

  ID = 8346
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617ba errorbox  35322 sec after notice time and 35382 sec after trigger time at 2023-06-18 08:05:31 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 57 deg. The sun  altitude  is -43.1 deg. 

The galactic latitude b = -54 deg., longitude l = 19 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12084

We obtain a following upper limits.  

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

   35472 | 2023-06-18 08:05:31 |         MASTER-OAFA | (02h 05m 23.25s , -46d 54m 49.1s) |   C |   180 | 19.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8347
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617ba errorbox  35322 sec after notice time and 35382 sec after trigger time at 2023-06-18 08:05:31 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 57 deg. The sun  altitude  is -43.1 deg. 

The galactic latitude b = -54 deg., longitude l = 19 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12084

We obtain a following upper limits.  

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

   35472 | 2023-06-18 08:05:31 |         MASTER-OAFA | (02h 05m 23.25s , -46d 54m 49.1s) |   C |   180 | 19.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8336
TYPE = 34
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617bc errorbox  1260 sec after notice time and 1344 sec after trigger time at 2023-06-17 22:38:31 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenith distance = 67 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 69 deg., longitude l = 128 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12086

We obtain a following upper limits.  

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

    1434 | 2023-06-17 22:38:31 |         MASTER-OAFA | (09h 40m 44.63s , +29d 17m 30.6s) |   C |   180 | 16.5 |        
    1647 | 2023-06-17 22:42:04 |         MASTER-OAFA | (09h 38m 24.12s , +27d 22m 04.5s) |   C |   180 | 17.3 |        
    1859 | 2023-06-17 22:45:35 |         MASTER-OAFA | (09h 47m 30.89s , +27d 23m 52.5s) |   C |   180 | 17.9 |        
    2070 | 2023-06-17 22:49:06 |         MASTER-OAFA | (09h 31m 28.86s , +29d 16m 32.7s) |   C |   180 | 17.8 |        
    2281 | 2023-06-17 22:52:38 |         MASTER-OAFA | (09h 40m 42.07s , +29d 17m 47.3s) |   C |   180 | 18.1 |        
    2492 | 2023-06-17 22:56:08 |         MASTER-OAFA | (09h 48m 58.77s , +29d 16m 00.9s) |   C |   180 | 18.5 |        
    2704 | 2023-06-17 22:59:40 |         MASTER-OAFA | (09h 58m 18.13s , +29d 16m 46.7s) |   C |   180 | 18.8 |        
    2935 | 2023-06-17 23:03:32 |         MASTER-OAFA | (07h 32m 42.28s , -15d 20m 46.5s) |   C |   180 | 17.6 |        
    3293 | 2023-06-17 23:09:30 |         MASTER-OAFA | (09h 48m 22.99s , +30d 20m 02.2s) |   C |   180 | 18.3 |        
    3504 | 2023-06-17 23:13:01 |         MASTER-OAFA | (09h 57m 36.61s , +30d 21m 20.4s) |   C |   180 | 18.7 |        
    3885 | 2023-06-17 23:19:21 |         MASTER-OAFA | (07h 40m 56.59s , -15d 21m 01.3s) |   C |   180 | 18.3 |        
    4096 | 2023-06-17 23:22:53 |         MASTER-OAFA | (07h 42m 28.65s , -19d 07m 22.9s) |   C |   180 | 18.4 |        
    4307 | 2023-06-17 23:26:24 |         MASTER-OAFA | (07h 50m 58.57s , -19d 08m 19.7s) |   C |   180 | 18.4 |        
    4778 | 2023-06-17 23:34:15 |         MASTER-OAFA | (07h 59m 55.45s , -13d 26m 26.6s) |   C |   180 | 18.4 |        
    5154 | 2023-06-17 23:40:30 |         MASTER-OAFA | (07h 42m 27.95s , -19d 07m 24.1s) |   C |   180 | 18.2 |        
    5365 | 2023-06-17 23:44:02 |         MASTER-OAFA | (08h 08m 12.21s , -13d 25m 58.3s) |   C |   180 | 18.6 |        
    5682 | 2023-06-17 23:49:19 |         MASTER-OAFA | (08h 08m 30.61s , -09d 37m 20.7s) |   C |   180 | 18.6 |        
    6164 | 2023-06-17 23:57:20 |         MASTER-OAFA | (08h 16m 43.79s , -09d 37m 00.7s) |   C |   180 | 18.5 |        
    6375 | 2023-06-18 00:00:52 |         MASTER-OAFA | (07h 59m 53.43s , -13d 26m 39.4s) |   C |   180 | 18.3 |        
    6586 | 2023-06-18 00:04:23 |         MASTER-OAFA | (08h 08m 14.68s , -13d 25m 58.9s) |   C |   180 | 18.4 |        
   17872 | 2023-06-18 03:12:29 |             MASTER- | (11h 08m 29.72s , +42d 44m 32.7s) |   C |   180 | 12.5 |        
   18214 | 2023-06-18 03:18:11 |             MASTER- | (10h 20m 42.13s , +38d 53m 10.8s) |   C |   180 | 12.4 |        
   18554 | 2023-06-18 03:23:50 |             MASTER- | (10h 31m 00.99s , +38d 52m 32.6s) |   C |   180 | 14.8 |        
   18754 | 2023-06-18 03:27:11 |             MASTER- | (10h 57m 37.91s , +42d 43m 58.0s) |   C |   180 | 17.9 |        
   18954 | 2023-06-18 03:30:31 |             MASTER- | (11h 08m 28.59s , +42d 44m 08.5s) |   C |   180 | 17.9 |        
   19293 | 2023-06-18 03:36:10 |             MASTER- | (10h 20m 38.75s , +38d 52m 00.3s) |   C |   180 | 17.0 |        
   19635 | 2023-06-18 03:41:51 |             MASTER- | (10h 31m 05.15s , +38d 51m 42.0s) |   C |   180 | 15.5 |        
   19975 | 2023-06-18 03:47:32 |             MASTER- | (09h 38m 33.30s , +27d 21m 32.4s) |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8337
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617bc errorbox  1260 sec after notice time and 1344 sec after trigger time at 2023-06-17 22:38:31 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenith distance = 67 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 69 deg., longitude l = 128 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12086

We obtain a following upper limits.  

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

    1434 | 2023-06-17 22:38:31 |         MASTER-OAFA | (09h 40m 44.63s , +29d 17m 30.6s) |   C |   180 | 16.5 |        
    1647 | 2023-06-17 22:42:04 |         MASTER-OAFA | (09h 38m 24.12s , +27d 22m 04.5s) |   C |   180 | 17.3 |        
    1859 | 2023-06-17 22:45:35 |         MASTER-OAFA | (09h 47m 30.89s , +27d 23m 52.5s) |   C |   180 | 17.9 |        
    2070 | 2023-06-17 22:49:06 |         MASTER-OAFA | (09h 31m 28.86s , +29d 16m 32.7s) |   C |   180 | 17.8 |        
    2281 | 2023-06-17 22:52:38 |         MASTER-OAFA | (09h 40m 42.07s , +29d 17m 47.3s) |   C |   180 | 18.1 |        
    2492 | 2023-06-17 22:56:08 |         MASTER-OAFA | (09h 48m 58.77s , +29d 16m 00.9s) |   C |   180 | 18.5 |        
    2704 | 2023-06-17 22:59:40 |         MASTER-OAFA | (09h 58m 18.13s , +29d 16m 46.7s) |   C |   180 | 18.8 |        
    2935 | 2023-06-17 23:03:32 |         MASTER-OAFA | (07h 32m 42.28s , -15d 20m 46.5s) |   C |   180 | 17.6 |        
    3293 | 2023-06-17 23:09:30 |         MASTER-OAFA | (09h 48m 22.99s , +30d 20m 02.2s) |   C |   180 | 18.3 |        
    3504 | 2023-06-17 23:13:01 |         MASTER-OAFA | (09h 57m 36.61s , +30d 21m 20.4s) |   C |   180 | 18.7 |        
    3885 | 2023-06-17 23:19:21 |         MASTER-OAFA | (07h 40m 56.59s , -15d 21m 01.3s) |   C |   180 | 18.3 |        
    4096 | 2023-06-17 23:22:53 |         MASTER-OAFA | (07h 42m 28.65s , -19d 07m 22.9s) |   C |   180 | 18.4 |        
    4307 | 2023-06-17 23:26:24 |         MASTER-OAFA | (07h 50m 58.57s , -19d 08m 19.7s) |   C |   180 | 18.4 |        
    4778 | 2023-06-17 23:34:15 |         MASTER-OAFA | (07h 59m 55.45s , -13d 26m 26.6s) |   C |   180 | 18.4 |        
    5154 | 2023-06-17 23:40:30 |         MASTER-OAFA | (07h 42m 27.95s , -19d 07m 24.1s) |   C |   180 | 18.2 |        
    5365 | 2023-06-17 23:44:02 |         MASTER-OAFA | (08h 08m 12.21s , -13d 25m 58.3s) |   C |   180 | 18.6 |        
    5682 | 2023-06-17 23:49:19 |         MASTER-OAFA | (08h 08m 30.61s , -09d 37m 20.7s) |   C |   180 | 18.6 |        
    6164 | 2023-06-17 23:57:20 |         MASTER-OAFA | (08h 16m 43.79s , -09d 37m 00.7s) |   C |   180 | 18.5 |        
    6375 | 2023-06-18 00:00:52 |         MASTER-OAFA | (07h 59m 53.43s , -13d 26m 39.4s) |   C |   180 | 18.3 |        
    6586 | 2023-06-18 00:04:23 |         MASTER-OAFA | (08h 08m 14.68s , -13d 25m 58.9s) |   C |   180 | 18.4 |        
   17872 | 2023-06-18 03:12:29 |             MASTER- | (11h 08m 29.72s , +42d 44m 32.7s) |   C |   180 | 12.5 |        
   18214 | 2023-06-18 03:18:11 |             MASTER- | (10h 20m 42.13s , +38d 53m 10.8s) |   C |   180 | 12.4 |        
   18554 | 2023-06-18 03:23:50 |             MASTER- | (10h 31m 00.99s , +38d 52m 32.6s) |   C |   180 | 14.8 |        
   18754 | 2023-06-18 03:27:11 |             MASTER- | (10h 57m 37.91s , +42d 43m 58.0s) |   C |   180 | 17.9 |        
   18954 | 2023-06-18 03:30:31 |             MASTER- | (11h 08m 28.59s , +42d 44m 08.5s) |   C |   180 | 17.9 |        
   19293 | 2023-06-18 03:36:10 |             MASTER- | (10h 20m 38.75s , +38d 52m 00.3s) |   C |   180 | 17.0 |        
   19635 | 2023-06-18 03:41:51 |             MASTER- | (10h 31m 05.15s , +38d 51m 42.0s) |   C |   180 | 15.5 |        
   19975 | 2023-06-18 03:47:32 |             MASTER- | (09h 38m 33.30s , +27d 21m 32.4s) |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8338
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617bc errorbox  1260 sec after notice time and 1344 sec after trigger time at 2023-06-17 22:38:31 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenith distance = 67 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 69 deg., longitude l = 128 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12086

We obtain a following upper limits.  

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

    1434 | 2023-06-17 22:38:31 |         MASTER-OAFA | (09h 40m 44.63s , +29d 17m 30.6s) |   C |   180 | 16.5 |        
    1647 | 2023-06-17 22:42:04 |         MASTER-OAFA | (09h 38m 24.12s , +27d 22m 04.5s) |   C |   180 | 17.3 |        
    1859 | 2023-06-17 22:45:35 |         MASTER-OAFA | (09h 47m 30.89s , +27d 23m 52.5s) |   C |   180 | 17.9 |        
    2070 | 2023-06-17 22:49:06 |         MASTER-OAFA | (09h 31m 28.86s , +29d 16m 32.7s) |   C |   180 | 17.8 |        
    2281 | 2023-06-17 22:52:38 |         MASTER-OAFA | (09h 40m 42.07s , +29d 17m 47.3s) |   C |   180 | 18.1 |        
    2492 | 2023-06-17 22:56:08 |         MASTER-OAFA | (09h 48m 58.77s , +29d 16m 00.9s) |   C |   180 | 18.5 |        
    2704 | 2023-06-17 22:59:40 |         MASTER-OAFA | (09h 58m 18.13s , +29d 16m 46.7s) |   C |   180 | 18.8 |        
    2935 | 2023-06-17 23:03:32 |         MASTER-OAFA | (07h 32m 42.28s , -15d 20m 46.5s) |   C |   180 | 17.6 |        
    3293 | 2023-06-17 23:09:30 |         MASTER-OAFA | (09h 48m 22.99s , +30d 20m 02.2s) |   C |   180 | 18.3 |        
    3504 | 2023-06-17 23:13:01 |         MASTER-OAFA | (09h 57m 36.61s , +30d 21m 20.4s) |   C |   180 | 18.7 |        
    3885 | 2023-06-17 23:19:21 |         MASTER-OAFA | (07h 40m 56.59s , -15d 21m 01.3s) |   C |   180 | 18.3 |        
    4096 | 2023-06-17 23:22:53 |         MASTER-OAFA | (07h 42m 28.65s , -19d 07m 22.9s) |   C |   180 | 18.4 |        
    4307 | 2023-06-17 23:26:24 |         MASTER-OAFA | (07h 50m 58.57s , -19d 08m 19.7s) |   C |   180 | 18.4 |        
    4778 | 2023-06-17 23:34:15 |         MASTER-OAFA | (07h 59m 55.45s , -13d 26m 26.6s) |   C |   180 | 18.4 |        
    5154 | 2023-06-17 23:40:30 |         MASTER-OAFA | (07h 42m 27.95s , -19d 07m 24.1s) |   C |   180 | 18.2 |        
    5365 | 2023-06-17 23:44:02 |         MASTER-OAFA | (08h 08m 12.21s , -13d 25m 58.3s) |   C |   180 | 18.6 |        
    5682 | 2023-06-17 23:49:19 |         MASTER-OAFA | (08h 08m 30.61s , -09d 37m 20.7s) |   C |   180 | 18.6 |        
    6164 | 2023-06-17 23:57:20 |         MASTER-OAFA | (08h 16m 43.79s , -09d 37m 00.7s) |   C |   180 | 18.5 |        
    6375 | 2023-06-18 00:00:52 |         MASTER-OAFA | (07h 59m 53.43s , -13d 26m 39.4s) |   C |   180 | 18.3 |        
    6586 | 2023-06-18 00:04:23 |         MASTER-OAFA | (08h 08m 14.68s , -13d 25m 58.9s) |   C |   180 | 18.4 |        
   17872 | 2023-06-18 03:12:29 |             MASTER- | (11h 08m 29.72s , +42d 44m 32.7s) |   C |   180 | 12.5 |        
   18214 | 2023-06-18 03:18:11 |             MASTER- | (10h 20m 42.13s , +38d 53m 10.8s) |   C |   180 | 12.4 |        
   18554 | 2023-06-18 03:23:50 |             MASTER- | (10h 31m 00.99s , +38d 52m 32.6s) |   C |   180 | 14.8 |        
   18754 | 2023-06-18 03:27:11 |             MASTER- | (10h 57m 37.91s , +42d 43m 58.0s) |   C |   180 | 17.9 |        
   18954 | 2023-06-18 03:30:31 |             MASTER- | (11h 08m 28.59s , +42d 44m 08.5s) |   C |   180 | 17.9 |        
   19293 | 2023-06-18 03:36:10 |             MASTER- | (10h 20m 38.75s , +38d 52m 00.3s) |   C |   180 | 17.0 |        
   19635 | 2023-06-18 03:41:51 |             MASTER- | (10h 31m 05.15s , +38d 51m 42.0s) |   C |   180 | 15.5 |        
   19975 | 2023-06-18 03:47:32 |             MASTER- | (09h 38m 33.30s , +27d 21m 32.4s) |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8345
TYPE = 34
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the LVC S230617ba errorbox  35322 sec after notice time and 35382 sec after trigger time at 2023-06-18 08:05:31 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 57 deg. The sun  altitude  is -43.1 deg. 

The galactic latitude b = -54 deg., longitude l = 19 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=12084

We obtain a following upper limits.  

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

   35472 | 2023-06-18 08:05:31 |         MASTER-OAFA | (02h 05m 23.25s , -46d 54m 49.1s) |   C |   180 | 19.1 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024