LIGO GRB20210925_T04810 alert (last error box) :: MASTER Database

ALL PLOTS

datetime T - Trig [h] T - Not [h] Area [sq. deg]

Box 50% 90% FULL

[%] 100.0 88.9 99.5

2021-10-09 01:20:10 336.0 319.0 234.3

Discoveries in this field
No discoveries yet!
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-'2021-09-25 01:20:10')<'10 minutes'::interval order by gn,seq desc,errorbox asc;

trigger notice notice+1hr now

2021-09-25 01:20:10 (JD 2459482.555671)
Siderial time 4.116771 h
Ra 03:11:57.60 Dec -51:24:36.00
( 47.990000d, -51.410000d)

Rise n/a
Transit n/a
Set n/a
Amur
Object: Altitude: -44.06 Azimuth: 57.51

Sun: Altitude: 32.82 Azimuth: 323.33

Moon: Altitude: 2.72 Azimuth: 111.97

Tunka
Object: Altitude: -32.83 Azimuth: 46.82

Sun: Altitude: 20.38 Azimuth: 299.67

Moon: Altitude: 17.95 Azimuth: 93.22

Kislovodsk
Object: Altitude: -6.52 Azimuth: 11.59

Sun: Altitude: -18.39 Azimuth: 252.61

Moon: Altitude: 57.20 Azimuth: 38.56

Tavrida
Object: Altitude: -6.54 Azimuth: 6.36

Sun: Altitude: -23.73 Azimuth: 245.48

Moon: Altitude: 59.50 Azimuth: 23.31

SAAO
Object: Altitude: 70.84 Azimuth: 354.20

Sun: Altitude: -37.48 Azimuth: 300.40

Moon: Altitude: 41.63 Azimuth: 181.48

IAC
Object: Altitude: 2.74 Azimuth: 336.14

Sun: Altitude: -61.89 Azimuth: 192.55

Moon: Altitude: 52.49 Azimuth: 280.84

Argentina
Object: Altitude: 22.49 Azimuth: 317.62

Sun: Altitude: -34.98 Azimuth: 63.08

Moon: Altitude: -9.40 Azimuth: 256.96

Mexico
Object: Altitude: -50.90 Azimuth: 314.89

Sun: Altitude: -2.11 Azimuth: 90.38

Moon: Altitude: -24.38 Azimuth: 231.28

Ural
Object: Altitude: -22.34 Azimuth: 23.16

Sun: Altitude: -5.02 Azimuth: 263.63

Moon: Altitude: 40.20 Azimuth: 50.15

Vostryakovo
Object: Altitude: -17.42 Azimuth: 9.07

Sun: Altitude: -17.05 Azimuth: 245.17

Moon: Altitude: 48.75 Azimuth: 23.47

Gal. latitude: -54.016523 Gal. longitude: 264.677502

Dist. to Sun: 114.898159

Dist. to Moon: 67.403713

Moon coord.: (46.090986 d, 15.973272 d)

Sun coord.: (181.746214 d, -0.757321 d)

Lunar disk: 0.846289

Lunar phase: 46.165483

Lunar bright limb: 75.244810

No SN in this field

2021-09-25 18:21:48 (JD 2459483.265139)
Siderial time 21.190612 h
Ra 03:11:57.60 Dec -51:24:36.00
( 47.990000d, -51.410000d)

Rise n/a
Transit n/a
Set n/a
Amur
Object: Altitude: -11.73 Azimuth: 359.83

Sun: Altitude: -27.56 Azimuth: 233.34

Moon: Altitude: 58.06 Azimuth: 347.91

Tunka
Object: Altitude: -15.30 Azimuth: 344.33

Sun: Altitude: -36.27 Azimuth: 206.29

Moon: Altitude: 48.99 Azimuth: 311.76

Kislovodsk
Object: Altitude: -30.20 Azimuth: 314.01

Sun: Altitude: -34.67 Azimuth: 129.17

Moon: Altitude: 11.72 Azimuth: 255.06

Tavrida
Object: Altitude: -35.38 Azimuth: 310.24

Sun: Altitude: -29.13 Azimuth: 121.54

Moon: Altitude: 6.21 Azimuth: 249.56

SAAO
Object: Altitude: 15.37 Azimuth: 321.77

Sun: Altitude: -23.29 Azimuth: 72.77

Moon: Altitude: -29.36 Azimuth: 265.30

IAC
Object: Altitude: -54.72 Azimuth: 320.89

Sun: Altitude: 7.12 Azimuth: 84.96

Moon: Altitude: -35.02 Azimuth: 214.42

Argentina
Object: Altitude: -5.44 Azimuth: 10.60

Sun: Altitude: 49.12 Azimuth: 133.15

Moon: Altitude: -65.17 Azimuth: 64.17

Mexico
Object: Altitude: -43.26 Azimuth: 46.67

Sun: Altitude: 55.78 Azimuth: 337.32

Moon: Altitude: -10.45 Azimuth: 119.62

Ural
Object: Altitude: -31.99 Azimuth: 316.93

Sun: Altitude: -31.16 Azimuth: 153.32

Moon: Altitude: 24.02 Azimuth: 272.15

Vostryakovo
Object: Altitude: -40.01 Azimuth: 305.48

Sun: Altitude: -24.91 Azimuth: 129.61

Moon: Altitude: 11.87 Azimuth: 253.97

Gal. latitude: -54.016523 Gal. longitude: 264.677502

Dist. to Sun: 114.973029

Dist. to Moon: 70.471301

Moon coord.: (54.449475 d, 18.833304 d)

Sun coord.: (182.383886 d, -1.033635 d)

Lunar disk: 0.794707

Lunar phase: 53.884616

Lunar bright limb: 77.049092

No SN in this field

2021-09-25 19:21:48 (JD 2459483.306806)
Siderial time 22.193350 h
Ra 03:11:57.60 Dec -51:24:36.00
( 47.990000d, -51.410000d)

Rise n/a
Transit n/a
Set n/a
Amur
Object: Altitude: -12.50 Azimuth: 9.38

Sun: Altitude: -19.27 Azimuth: 246.99

Moon: Altitude: 58.06 Azimuth: 14.07

Tunka
Object: Altitude: -13.54 Azimuth: 353.83

Sun: Altitude: -31.00 Azimuth: 223.19

Moon: Altitude: 54.69 Azimuth: 332.14

Kislovodsk
Object: Altitude: -22.81 Azimuth: 320.46

Sun: Altitude: -42.01 Azimuth: 145.91

Moon: Altitude: 22.15 Azimuth: 264.45

Tavrida
Object: Altitude: -27.59 Azimuth: 316.36

Sun: Altitude: -37.43 Azimuth: 136.53

Moon: Altitude: 16.26 Azimuth: 259.15

SAAO
Object: Altitude: 23.65 Azimuth: 317.11

Sun: Altitude: -34.98 Azimuth: 61.96

Moon: Altitude: -17.29 Azimuth: 258.10

IAC
Object: Altitude: -45.87 Azimuth: 316.05

Sun: Altitude: -6.09 Azimuth: 92.09

Moon: Altitude: -26.51 Azimuth: 227.03

Argentina
Object: Altitude: -6.77 Azimuth: 1.28

Sun: Altitude: 38.73 Azimuth: 118.02

Moon: Altitude: -74.85 Azimuth: 34.42

Mexico
Object: Altitude: -52.50 Azimuth: 44.43

Sun: Altitude: 57.81 Azimuth: 4.65

Moon: Altitude: -20.63 Azimuth: 129.24

Ural
Object: Altitude: -26.89 Azimuth: 325.96

Sun: Altitude: -33.68 Azimuth: 170.86

Moon: Altitude: 31.96 Azimuth: 284.90

Vostryakovo
Object: Altitude: -33.43 Azimuth: 313.81

Sun: Altitude: -30.68 Azimuth: 145.29

Moon: Altitude: 20.11 Azimuth: 265.44

Gal. latitude: -54.016523 Gal. longitude: 264.677502

Dist. to Sun: 114.977307

Dist. to Moon: 70.663376

Moon coord.: (54.946825 d, 18.989495 d)

Sun coord.: (182.421346 d, -1.049862 d)

Lunar disk: 0.791511

Lunar phase: 54.336581

Lunar bright limb: 77.176822

No SN in this field

2024-04-18 23:58:13 (JD 2460419.498762)
Siderial time 16.317304 h
Ra 03:11:57.60 Dec -51:24:36.00
( 47.990000d, -51.410000d)

Rise n/a
Transit n/a
Set n/a
Amur
Object: Altitude: -29.18 Azimuth: 316.80

Sun: Altitude: 32.07 Azimuth: 293.43

Moon: Altitude: -26.54 Azimuth: 176.71

Tunka
Object: Altitude: -41.80 Azimuth: 304.00

Sun: Altitude: 16.87 Azimuth: 273.35

Moon: Altitude: -20.89 Azimuth: 151.29

Kislovodsk
Object: Altitude: -73.58 Azimuth: 305.42

Sun: Altitude: -22.82 Azimuth: 226.11

Moon: Altitude: 7.57 Azimuth: 100.89

Tavrida
Object: Altitude: -78.98 Azimuth: 311.98

Sun: Altitude: -26.16 Azimuth: 217.81

Moon: Altitude: 13.74 Azimuth: 94.92

SAAO
Object: Altitude: -6.21 Azimuth: 0.02

Sun: Altitude: -61.36 Azimuth: 313.08

Moon: Altitude: 8.97 Azimuth: 111.81

IAC
Object: Altitude: -53.81 Azimuth: 39.87

Sun: Altitude: -47.47 Azimuth: 155.79

Moon: Altitude: 55.76 Azimuth: 70.48

Argentina
Object: Altitude: 24.43 Azimuth: 43.24

Sun: Altitude: -23.43 Azimuth: 88.82

Moon: Altitude: 41.26 Azimuth: 206.07

Mexico
Object: Altitude: -2.92 Azimuth: 28.01

Sun: Altitude: 23.03 Azimuth: 89.39

Moon: Altitude: 31.52 Azimuth: 273.40

Ural
Object: Altitude: -67.03 Azimuth: 272.47

Sun: Altitude: -6.17 Azimuth: 238.37

Moon: Altitude: 0.98 Azimuth: 112.94

Vostryakovo
Object: Altitude: -79.17 Azimuth: 255.54

Sun: Altitude: -16.29 Azimuth: 218.90

Moon: Altitude: 12.26 Azimuth: 95.34

Gal. latitude: -54.016523 Gal. longitude: 264.677502

Dist. to Sun: 65.147023

Dist. to Moon: 112.412525

Moon coord.: (157.643542 d, 13.083140 d)

Sun coord.: (27.045459 d, 11.156090 d)

Lunar disk: 0.789946

Lunar phase: 54.557014

Lunar bright limb: 294.088097

No SN in this field

Recent coverage and limits telegrams

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  ID = 5080
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 IPN GRB210925.06 errorbox 58323 sec after trigger time at 2021-09-25 17:32:13 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 79 deg. The sun  altitude  is -12.5 deg. 

The galactic latitude b = -50 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11636

We obtain a following upper limits.  

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

   58353 | 2021-09-25 17:32:13 |         MASTER-SAAO | (03h 08m 19.72s , -54d 02m 23.9s) |   C |    60 | 17.1 |        
   58831 | 2021-09-25 17:40:11 |         MASTER-SAAO | (03h 17m 35.74s , -55d 55m 49.8s) |   C |    60 | 17.6 |        
   58911 | 2021-09-25 17:41:31 |         MASTER-SAAO | (03h 20m 38.86s , -54d 01m 35.2s) |   C |    60 | 17.3 |        
   59088 | 2021-09-25 17:44:27 |         MASTER-SAAO | (03h 11m 55.44s , -52d 08m 36.8s) |   C |    60 | 17.3 |        
   59167 | 2021-09-25 17:45:47 |         MASTER-SAAO | (03h 04m 13.38s , -50d 14m 48.9s) |   C |    60 | 17.3 |        
   59327 | 2021-09-25 17:48:26 |         MASTER-SAAO | (03h 08m 21.47s , -54d 00m 41.7s) |   C |    60 | 17.6 |        
   59814 | 2021-09-25 17:56:34 |         MASTER-SAAO | (03h 03m 20.62s , -55d 55m 30.4s) |   C |    60 | 17.9 |        
   59894 | 2021-09-25 17:57:53 |         MASTER-SAAO | (03h 17m 30.37s , -55d 55m 28.1s) |   C |    60 | 17.8 |        
   59974 | 2021-09-25 17:59:13 |         MASTER-SAAO | (03h 20m 36.49s , -54d 00m 25.0s) |   C |    60 | 17.6 |        
   60228 | 2021-09-25 18:03:28 |         MASTER-SAAO | (03h 12m 02.29s , -52d 08m 46.8s) |   C |    60 | 17.8 |        
   60308 | 2021-09-25 18:04:47 |         MASTER-SAAO | (03h 25m 00.86s , -52d 06m 48.4s) |   C |    60 | 17.6 |        
   60387 | 2021-09-25 18:06:07 |         MASTER-SAAO | (03h 04m 13.46s , -50d 14m 53.9s) |   C |    60 | 18.0 |        
   60467 | 2021-09-25 18:07:26 |         MASTER-SAAO | (03h 16m 46.77s , -50d 12m 56.0s) |   C |    60 | 17.6 |        
   60626 | 2021-09-25 18:10:06 |         MASTER-SAAO | (03h 08m 21.03s , -54d 01m 07.9s) |   C |    60 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024

MASTER Net MASTER Database: LIGO GRB20210925_T04810 alert (last error box)

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Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

MASTER WFC:
Raw | Processing | Search
Single sets | Single images
SN | Asteroid | Transient | Comet

MASTER II:
Raw | Processing | Search by orbit elements | Search
SN | Asteroid | Transient | Two tube | Short transient | Tr. difference | Comet | Nova M31 | GRB | GRB_HPX | LIGO | LVC status
Manual control | Planner | Planner Results | Planner NET

General:
SN list | Sky map | Add asteroid
Meteo | Focus | MASTER page
Users list | Users statistic | Logout