Swift Trigger: 1418729

Presumed name: GRB 251201B

BAT	00^h 25^m 38.16^s, -44° 14′ 13.2″
position:	(6.409, -44.237 ± 180″)
XRT	00^h 25^m 34.75^s, -44° 14′ 01.2″
position:	(6.39479, -44.23366 ± 2.1″)
UVOT	00^h 25^m 34.58^s, -44° 14′ 01.0″
position:	(6.3941, -44.2336 ± 0.8″)
Galactic N_HI:	1.75×10²⁰ cm^-2
Galactic E(B-V):	0.008 mag

Best RA:	00^h 25^m 34.58^s	= 6.3941 d
Best Dec:	-44° 14′ 01.0″	= -44.2336 d

Gal Lat:	-72.12
Gal Long:	318.17

Sun angle:	93.43°, -7.9 hr East of Sun

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 6 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 00 25 34.77 (-44.23376)
- Dec (J2000): -44 14 01.5 ( -44.23299)
- Error (90%): 2.1
- Counts in Source: 322

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	Date reported	Source	Misc	Query

Catalogue Searches. Searched 200′ 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
94.1	6.4197	-44.2146	2MASX J00254073-4412521	G=19.841131, H=14.108, J=14.460, K=13.249
146.5	6.4422	-44.2112	WISE J002546.07-441239.9	G=20.741982
188.3	6.4356	-44.2770	2MASX J00254454-4416371	G=20.566099, H=14.227, J=14.845, K=13.481

There are 3 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
41.1	6.3839	-44.2253	B2=17.7, R1=19.9	USNO-B1
43.0	6.4102	-44.2381	B=21.8, R2=20.3	SSS
43.2	6.4104	-44.2380	B2=18.8, R2=20.5	USNO-B1
45.2	6.4111	-44.2383	B2=20.1, R2=20.4	USNO-B1
50.8	6.4132	-44.2388	B=20.8, R2=19.3, i=18.8	SSS
59.4	6.3746	-44.2416	I=18.6, R1=19.8, R2=20.3	USNO-B1
62.1	6.3989	-44.2507	R1=19.9, R2=20.4	USNO-B1
84.7	6.4023	-44.2108	B=22.5	SSS
91.9	6.4276	-44.2437	B=21.4, R2=19.5, i=19.0	SSS
93.1	6.4153	-44.2124	B=22.8	SSS

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

There are 54 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
21.8	6.3928	-44.2278	I=18.7, R1=19.9	USNO-B1
25.7	6.3933	-44.2266	h=14.8, j=15.4, k=14.5	2MASS
26.1	6.3932	-44.2265	B2=20.1, I=17.3, R1=17.6, R2=17.3	USNO-B1
29.2	6.4046	-44.2296	R1=19.9, R2=20.5	USNO-B1
49.0	6.4023	-44.2462	B2=19.7, I=18.7, R1=19.6, R2=20.0	USNO-B1
51.8	6.4135	-44.2388	B2=20.2, I=18.7, R1=19.4, R2=19.2	USNO-B1
54.5	6.3787	-44.2435	B2=17.4, R2=19.9	USNO-B1
59.3	6.3748	-44.2418	h=15.8, j=16.2, k=15.3	2MASS
72.8	6.3773	-44.2495	h=15.5, j=16.6, k=15.2	2MASS
73.0	6.3772	-44.2495	B2=20.4, I=18.2, R1=18.7, R2=18.3	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 82 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.