Swift Trigger: 997453

Presumed name: GRB 200925B

BAT	16^h 27^m 24.24^s, +78° 23′ 38.4″
position:	(246.851, +78.394 ± 180″)
XRT	16^h 27^m 08.86^s, +78° 23′ 25.4″
position:	(246.7869, 78.3904 ± 2.0″)
UVOT	No position available.
Galactic N_HI:	4.02×10⁰ cm^-2
Galactic E(B-V):	0.040 mag

Best RA:	16^h 27^m 08.86^s	= 246.7869 d
Best Dec:	+78° 23′ 25.4″	= 78.3904 d

Gal Lat:	33.51
Gal Long:	111.68

Sun angle:	86.13°, -4.2 hr East of Sun

¹Sper #9 auto processing.

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.

XRT SPER data

SPER results page for this trigger.

There are 11 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 16 27 08.88 (78.3904)
- Dec (J2000): +78 23 25.5 ( 78.39047)
- Error (90%): 2.0
- Counts in Source: 288

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Source	Misc
0.1′′	246.78680	78.39040	GCN #28500	GRB 200925B: Prompt enhanced Swift-XRT position
1.2′′	246.78542	78.39025	GCN #28501	GRB 200925A: OSN Afterglow Candidate Discovery
1.3′′	246.78522	78.39052	GCN #28503	GRB 200925B: Enhanced Swift-XRT position
2.2′′	246.78990	78.39033	GCN #28499	GRB 200925B: Swift detection of a burst
48.2′′	246.85100	78.39400	GCN #28502	Swift GRB 200925B: Global MASTER-Net OT detection
48.2′′	246.85100	78.39400	GCN #28498	Swift GRB200925.91: Global MASTER-Net observations report
76.6′′	246.89208	78.39264	GCN #28506	GRB 200925B: Swift-BAT refined analysis

There are 13 matches in total. See the full table for details.

Catalogue Searches. Searched 3.33′ around XRT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).

SIMBAD

	RA*	Dec*	SIMBAD name
54.8	246.8318	78.4027	Pul -3 1320065	B=15.8, G=15.0037, H=13.766, J=14.064, K=13.766, R=15.1
68.8	246.7656	78.3718	RX J162703.7+782218
78.8	246.7139	78.4066	Pul -3 1320057	B=15.8, G=15.0264, H=13.725, J=14.035, K=13.691, R=15.0
160.0	246.6306	78.3590	Pul -3 1320055	B=15.9, G=15.5413, H=14.150, R=15.4

There are 4 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table²	Observatory	Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*		Catalogue
6.3	246.7955	78.3907	B=16.5, R=14.8	APM-N
6.4	246.7954	78.3906		NED
28.6	246.7929	78.3983		NED
29.8	246.7546	78.3853		NED
41.6	246.7862	78.4019		NED
41.8	246.8008	78.3792		NED
43.1	246.7667	78.3792		NED
44.7	246.7253	78.3895	B=21.9, R=20.0	APM-N
46.1	246.8242	78.4008		NED
50.5	246.8467	78.3833		NED

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 230 galaxies within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example

Stars

	RA*	Dec*		Catalogue
6.1	246.7951	78.3900	I=14.7, R1=19.1	USNO-B1
6.2	246.7954	78.3907	B1=16.6, B2=17.3, I=14.6, R1=15.1, R2=15.6	USNO-B1
6.4	246.7956	78.3906	h=14.3, j=14.8, k=14.2	2MASS
54.8	246.8318	78.4026	h=13.8, j=14.1, k=13.8	2MASS
55.1	246.8318	78.4028	B1=15.4, B2=16.0, I=13.8, R1=14.4, R2=14.6	USNO-B1
55.4	246.7818	78.3750	B2=20.2, R2=20.0	USNO-B1
64.9	246.8082	78.3729	B1=20.3, B2=20.8, I=17.1, R1=18.1, R2=18.2	USNO-B1
65.1	246.8083	78.3728	h=15.0, j=15.8, k=14.9	2MASS
65.4	246.8768	78.3890	B1=19.6, B2=19.8, I=15.4, R1=17.0, R2=17.2	USNO-B1
65.5	246.8768	78.3885	B1=19.9, R2=17.2	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 84 stars within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example.