MASTER Net MASTER Database: GRB210521.54 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 MAXI GRB210521.54
Trignum 355431084
Trigger time 2021-05-21 13:04:18
Notice time 2021-05-21 14:31:25.856503
Coord, eb (17h 38m 41.76s , -61d 45m 07.2s) , 1
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)

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
1618757 2021-05-21 14:31:25.856503 17h 38m 41.76s -61d 45m 07.2s MAXI 1 alert 355431084 2 134 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

2021-05-21 13:04:18 (JD 2459356.044653)

Siderial time 7.539310 h

Ra 17:38:41.76 Dec -61:45:07.20
(264.674000d, -61.752000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -32.33 Azimuth: 330.45

Sun: Altitude: -12.87 Azimuth: 146.22

Moon: Altitude: 41.55 Azimuth: 38.29

Tunka

Object: Altitude: -42.27 Azimuth: 320.35

Sun: Altitude: -1.19 Azimuth: 125.88

Moon: Altitude: 45.88 Azimuth: 4.97

Kislovodsk

Object: Altitude: -63.49 Azimuth: 324.38

Sun: Altitude: 35.49 Azimuth: 84.58

Moon: Altitude: 28.87 Azimuth: 288.29

Tavrida

Object: Altitude: -67.69 Azimuth: 328.45

Sun: Altitude: 41.35 Azimuth: 77.10

Moon: Altitude: 22.74 Azimuth: 282.04

SAAO

Object: Altitude: 4.60 Azimuth: 354.52

Sun: Altitude: 26.03 Azimuth: 139.95

Moon: Altitude: 5.19 Azimuth: 257.37

IAC

Object: Altitude: -52.47 Azimuth: 19.70

Sun: Altitude: 81.91 Azimuth: 4.82

Moon: Altitude: -18.63 Azimuth: 249.89

Argentina

Object: Altitude: 22.60 Azimuth: 30.16

Sun: Altitude: 17.91 Azimuth: 231.08

Moon: Altitude: -63.85 Azimuth: 334.36

Mexico

Object: Altitude: -14.73 Azimuth: 25.19

Sun: Altitude: 7.71 Azimuth: 250.98

Moon: Altitude: -41.72 Azimuth: 138.47

Ural

Object: Altitude: -64.62 Azimuth: 301.79

Sun: Altitude: 24.02 Azimuth: 90.51

Moon: Altitude: 31.76 Azimuth: 311.45

Vostryakovo

Object: Altitude: -73.95 Azimuth: 304.97

Sun: Altitude: 36.17 Azimuth: 72.27

Moon: Altitude: 22.19 Azimuth: 289.48

Gal. latitude: -16.171139 Gal. longitude: 331.020135

Dist. to Sun: 134.618860

Dist. to Moon: 96.671357

Moon coord.: (175.049460 d, 7.779931 d)

Sun coord.: (58.240232 d, 20.239795 d)

Lunar disk: 0.687204

Lunar phase: 68.012267

Lunar bright limb: 295.542387

No SN in this field

2021-05-21 14:31:25 (JD 2459356.105150)

Siderial time 8.995230 h

Ra 17:38:41.76 Dec -61:45:07.20
(264.674000d, -61.752000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -26.49 Azimuth: 340.18

Sun: Altitude: -18.43 Azimuth: 166.65

Moon: Altitude: 31.01 Azimuth: 60.78

Tunka

Object: Altitude: -34.43 Azimuth: 328.87

Sun: Altitude: -10.69 Azimuth: 144.07

Moon: Altitude: 41.24 Azimuth: 33.23

Kislovodsk

Object: Altitude: -53.56 Azimuth: 319.16

Sun: Altitude: 19.82 Azimuth: 99.46

Moon: Altitude: 41.99 Azimuth: 308.37

Tavrida

Object: Altitude: -58.29 Azimuth: 319.09

Sun: Altitude: 25.99 Azimuth: 93.39

Moon: Altitude: 36.41 Azimuth: 300.29

SAAO

Object: Altitude: 7.95 Azimuth: 344.73

Sun: Altitude: 12.29 Azimuth: 123.90

Moon: Altitude: 22.22 Azimuth: 244.88

IAC

Object: Altitude: -56.45 Azimuth: 3.32

Sun: Altitude: 68.01 Azimuth: 73.53

Moon: Altitude: -0.86 Azimuth: 261.08

Argentina

Object: Altitude: 14.08 Azimuth: 24.07

Sun: Altitude: 30.39 Azimuth: 213.30

Moon: Altitude: -51.40 Azimuth: 302.20

Mexico

Object: Altitude: -23.56 Azimuth: 30.77

Sun: Altitude: 25.80 Azimuth: 260.93

Moon: Altitude: -50.59 Azimuth: 166.03

Ural

Object: Altitude: -54.88 Azimuth: 308.45

Sun: Altitude: 12.39 Azimuth: 108.22

Moon: Altitude: 38.22 Azimuth: 335.78

Vostryakovo

Object: Altitude: -63.66 Azimuth: 304.67

Sun: Altitude: 23.98 Azimuth: 91.29

Moon: Altitude: 32.24 Azimuth: 310.14

Gal. latitude: -16.171139 Gal. longitude: 331.020135

Dist. to Sun: 134.647324

Dist. to Moon: 95.999822

Moon coord.: (175.820675 d, 7.430190 d)

Sun coord.: (58.300875 d, 20.251976 d)

Lunar disk: 0.693513

Lunar phase: 67.230389

Lunar bright limb: 295.643767

No SN in this field

2021-05-21 15:31:25 (JD 2459356.146817)

Siderial time 9.997968 h

Ra 17:38:41.76 Dec -61:45:07.20
(264.674000d, -61.752000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -23.81 Azimuth: 347.45

Sun: Altitude: -19.41 Azimuth: 181.48

Moon: Altitude: 22.28 Azimuth: 73.62

Tunka

Object: Altitude: -30.09 Azimuth: 335.52

Sun: Altitude: -15.19 Azimuth: 157.75

Moon: Altitude: 35.07 Azimuth: 49.82

Kislovodsk

Object: Altitude: -46.46 Azimuth: 319.72

Sun: Altitude: 9.34 Azimuth: 109.17

Moon: Altitude: 48.89 Azimuth: 326.46

Tavrida

Object: Altitude: -51.20 Azimuth: 318.31

Sun: Altitude: 15.47 Azimuth: 103.39

Moon: Altitude: 44.31 Azimuth: 316.14

SAAO

Object: Altitude: 11.94 Azimuth: 338.76

Sun: Altitude: 1.26 Azimuth: 115.09

Moon: Altitude: 32.95 Azimuth: 234.02

IAC

Object: Altitude: -55.74 Azimuth: 350.63

Sun: Altitude: 55.03 Azimuth: 85.20

Moon: Altitude: 11.73 Azimuth: 268.09

Argentina

Object: Altitude: 9.42 Azimuth: 18.59

Sun: Altitude: 35.91 Azimuth: 197.82

Moon: Altitude: -40.13 Azimuth: 289.28

Mexico

Object: Altitude: -30.39 Azimuth: 32.97

Sun: Altitude: 38.58 Azimuth: 267.90

Moon: Altitude: -51.38 Azimuth: 188.95

Ural

Object: Altitude: -48.73 Azimuth: 314.22

Sun: Altitude: 4.97 Azimuth: 120.32

Moon: Altitude: 40.03 Azimuth: 354.22

Vostryakovo

Object: Altitude: -56.77 Azimuth: 308.20

Sun: Altitude: 15.55 Azimuth: 103.28

Moon: Altitude: 37.50 Azimuth: 326.50

Gal. latitude: -16.171139 Gal. longitude: 331.020135

Dist. to Sun: 134.666901

Dist. to Moon: 95.536276

Moon coord.: (176.351990 d, 7.188137 d)

Sun coord.: (58.342647 d, 20.260354 d)

Lunar disk: 0.697845

Lunar phase: 66.690933

Lunar bright limb: 295.711015

No SN in this field

2025-03-13 07:15:47 (JD 2460747.802627)

Siderial time 21.182871 h

Ra 17:38:41.76 Dec -61:45:07.20
(264.674000d, -61.752000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -66.79 Azimuth: 46.38

Sun: Altitude: 19.39 Azimuth: 59.40

Moon: Altitude: -9.36 Azimuth: 244.30

Tunka

Object: Altitude: -56.31 Azimuth: 48.57

Sun: Altitude: 29.65 Azimuth: 35.04

Moon: Altitude: -20.77 Azimuth: 222.41

Kislovodsk

Object: Altitude: -25.33 Azimuth: 26.36

Sun: Altitude: 35.86 Azimuth: 321.19

Moon: Altitude: -34.40 Azimuth: 154.65

Tavrida

Object: Altitude: -23.67 Azimuth: 23.13

Sun: Altitude: 30.98 Azimuth: 312.75

Moon: Altitude: -30.51 Azimuth: 145.66

SAAO

Object: Altitude: 52.57 Azimuth: 27.42

Sun: Altitude: 32.91 Azimuth: 250.23

Moon: Altitude: -43.92 Azimuth: 68.45

IAC

Object: Altitude: -0.06 Azimuth: 359.50

Sun: Altitude: -1.04 Azimuth: 272.77

Moon: Altitude: -4.68 Azimuth: 102.29

Argentina

Object: Altitude: 44.54 Azimuth: 327.57

Sun: Altitude: -40.22 Azimuth: 307.09

Moon: Altitude: 29.53 Azimuth: 123.47

Mexico

Object: Altitude: -29.29 Azimuth: 327.27

Sun: Altitude: -61.69 Azimuth: 172.66

Moon: Altitude: 66.74 Azimuth: 15.60

Ural

Object: Altitude: -42.25 Azimuth: 38.14

Sun: Altitude: 29.04 Azimuth: 344.48

Moon: Altitude: -24.37 Azimuth: 175.75

Vostryakovo

Object: Altitude: -34.34 Azimuth: 27.34

Sun: Altitude: 24.90 Azimuth: 320.51

Moon: Altitude: -22.62 Azimuth: 152.38

Gal. latitude: -16.171139 Gal. longitude: 331.020135

Dist. to Sun: 86.727720

Dist. to Moon: 102.739322

Moon coord.: (163.577941 d, 8.514911 d)

Sun coord.: (353.216916 d, -2.932186 d)

Lunar disk: 0.990718

Lunar phase: 11.057504

Lunar bright limb: 299.651895

No SN in this field
Recent coverage and limits telegrams

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

  ID = 4302
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the MAXI GRB210521.54 (trigger No 355431084,17h 38m 53.52s , -61d 22m 44.4s, R=1) errorbox  51456 sec after notice time and 56029 sec after trigger time at 2021-05-22 04:38:07 UT, with upper limit up to  15.6 mag. Observations started at twilight.  The observations began at zenith distance = 50 deg. The sun  altitude  is -10.1 deg. 

The galactic latitude b = -16 deg., longitude l = 331 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1618748

We obtain a following upper limits.  

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

   56060 | 2021-05-22 04:38:07 |         MASTER-SAAO | (17h 38m 08.44s , -61d 25m 58.7s) |   C |    60 | 15.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4301
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 MAXI GRB210521.54 (trigger No 355431084,17h 38m 53.52s , -61d 22m 44.4s, R=1) errorbox  51456 sec after notice time and 56029 sec after trigger time at 2021-05-22 04:38:07 UT, with upper limit up to  15.6 mag. Observations started at twilight.  The observations began at zenith distance = 50 deg. The sun  altitude  is -10.1 deg. 

The galactic latitude b = -16 deg., longitude l = 331 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1618748

We obtain a following upper limits.  

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

   56060 | 2021-05-22 04:38:07 |         MASTER-SAAO | (17h 38m 08.44s , -61d 25m 58.7s) |   C |    60 | 15.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4300
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 MAXI GRB210521.54 (trigger No 355431084,17h 38m 53.52s , -61d 22m 44.4s, R=1) errorbox  51456 sec after notice time and 56029 sec after trigger time at 2021-05-22 04:38:07 UT, with upper limit up to  15.6 mag. Observations started at twilight.  The observations began at zenith distance = 50 deg. The sun  altitude  is -10.1 deg. 

The galactic latitude b = -16 deg., longitude l = 331 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1618748

We obtain a following upper limits.  

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

   56060 | 2021-05-22 04:38:07 |         MASTER-SAAO | (17h 38m 08.44s , -61d 25m 58.7s) |   C |    60 | 15.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4299
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 MAXI GRB210521.54 (trigger No 355431084,17h 38m 53.52s , -61d 22m 44.4s, R=1) errorbox  51456 sec after notice time and 56029 sec after trigger time at 2021-05-22 04:38:07 UT, with upper limit up to  15.6 mag. Observations started at twilight.  The observations began at zenith distance = 50 deg. The sun  altitude  is -10.1 deg. 

The galactic latitude b = -16 deg., longitude l = 331 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1618748

We obtain a following upper limits.  

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

   56060 | 2021-05-22 04:38:07 |         MASTER-SAAO | (17h 38m 08.44s , -61d 25m 58.7s) |   C |    60 | 15.6 |        
Filter C is a clear (unfiltred) band. 


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

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