Swift Trigger: 958141

Presumed name: GRB 200224A

BAT	16^h 35^m 10.56^s, +41° 40′ 30.0″
position:	(248.794, +41.675 ± 180″)
XRT	16^h 35^m 04.20^s, +41° 36′ 45.0″
position:	(248.7675, 41.6125 ± 2.8″)
UVOT	16^h 35^m 04.18^s, +41° 36′ 42.5″
position:	(248.7674, +41.6118 ± 1.1″)
Galactic N_HI:	8.72×10⁰ cm^-2
Galactic E(B-V):	0.008 mag

Best RA:	16^h 35^m 04.18^s	= 248.7674 d
Best Dec:	+41° 36′ 42.5″	= +41.6118 d

Gal Lat:	42.52
Gal Long:	65.79

Sun angle:	94.83°, 5.9 hr West

¹Sper #11 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 13 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 16 35 04.20 (41.6125)
- Dec (J2000): +41 36 45.1 ( 41.61307)
- Error (90%): 2.8
- Counts in Source: 24

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
0.4′′	248.76725	41.61175	GCN #27182	GRB 200224A: Swift/UVOT Detection
0.7′′	248.76712	41.61178	GCN #27177	GRB 200224A: Tautenburg observations
0.9′′	248.76712	41.61167	GCN #27176	GRB 200224A: BOOTES-1 and 1.5m OSN optical observations
2.2′′	248.76683	41.61225	GCN #27173	GRB 200224A: Swift detection of a burst
2.8′′	248.76655	41.61133	GCN #27179	GRB 200224A: Swift-XRT refined Analysis
205.2′′	248.74333	41.66589	GCN #27194	GRB 200224A: Swift-BAT refined analysis
238.5′′	248.79400	41.67500	GCN #27172	Swift GRB200224.14: Global MASTER-Net observations report

There are 12 matches in total. See the full table for details.

Catalogue Searches. Searched 3.33′ around UVOT 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		Query
113.8	248.7702	41.5803	2MASS J16350484+4134489	G=12.0406, H=10.082, J=10.616, K=10.001
133.4	248.7379	41.5820	ELAISC7 J163456+413505	g=15.92, i=14.93

* 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*	Redshift		Catalogue
9.2	248.7687	41.6142		Mag=22.8	NED
10.6	248.7637	41.6106		Mag=22.8	NED
14.1	248.7717	41.6097		Mag=22.8	NED
14.2	248.7650	41.6153		Mag=22.8	NED
20.4	248.7737	41.6150		Mag=22.8	NED
21.4	248.7625	41.6069		Mag=22.8	NED
21.8	248.7679	41.6178		B=21.8, R=20.0	APM-N
23.3	248.7704	41.6178		Mag=22.8	NED
24.3	248.7637	41.6057		B1=20.5, B2=20.8, R1=20.1, R2=20.3	USNO-B1
24.4	248.7637	41.6056	2.025000	Mag=22.8	NED

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

There are 827 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
9.2	248.7687	41.6142	I=20.7, R=21.8, g=22.8, u=25.6, z=19.7	SDSS
9.3	248.7687	41.6142	I=20.4, R=21.5, g=22.9, u=24.1, z=19.9	SDSS
14.1	248.7718	41.6097	I=20.4, R=21.6, g=22.8, u=24.5, z=19.7	SDSS
14.1	248.7719	41.6097	I=20.4, R=21.4, g=23.0, u=23.5, z=19.7	SDSS
24.2	248.7638	41.6056	I=20.7, R=20.9, g=21.0, u=21.2, z=20.8	SDSS
24.4	248.7637	41.6056	I=20.7, R=20.8, g=20.9, u=20.9, z=20.3	SDSS
26.4	248.7613	41.6176	I=24.8, R=25.3, g=24.8, u=22.3, z=23.7	SDSS
32.8	248.7607	41.6194	I=21.2, R=22.0, g=23.0, u=25.1, z=21.1	SDSS
32.9	248.7751	41.6189	I=24.0, R=25.4, g=25.4, u=22.4, z=21.6	SDSS
33.1	248.7606	41.6195	I=21.4, R=22.4, g=24.3, u=23.8, z=20.8	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 370 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.