Swift Trigger: 1001514

Presumed name: GRB 201024A

BAT	08^h 23^m 47.52^s, +03° 22′ 37.2″
position:	(125.948, +3.377 ± 180″)
XRT	08^h 23^m 48.50^s, +03° 21′ 13.3″
position:	(125.9521, 3.3537 ± 2.1″)
UVOT	08^h 23^m 48.53^s, +03° 21′ 14.4″
position:	(125.9522, +3.3540 ± 0.6″)
Galactic N_HI:	3.27×10⁰ cm^-2
Galactic E(B-V):	0.033 mag

Best RA:	08^h 23^m 48.53^s	= 125.9522 d
Best Dec:	+03° 21′ 14.4″	= +3.3540 d

Gal Lat:	22.03
Gal Long:	220.77

Sun angle:	83.65°, 5.5 hr West

¹Sper #3 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) : 08 23 48.50 (3.3538)
- Dec (J2000): +03 21 13.7 ( 3.35401)
- Error (90%): 2.0
- Counts in Source: 386

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
0.3′′	125.95229	3.35403	GCN #28761	GRB 201024A: Swift detection of a burst with an optical afterglow
1.0′′	125.95242	3.35383	GCN #28760	Swift GRB201024A: Global MASTER-Net OT detection
1.0′′	125.95242	3.35383	GCN #28762	GRB 201024A: MASTER correction to GCN 28760
1.6′′	125.95224	3.35444	GCN #28770	GRB 201024A: Enhanced Swift-XRT position
26.7′′	125.95900	3.35700	GCN #28778	GRB 201024A: Swift-BAT refined analysis
84.2′′	125.94800	3.37700	GCN #28759	Swift GRB201024.12: Global MASTER-Net observations report

There are 12 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		Query

* 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
1.1	125.9523	3.3540	R=22.4, g=23.0, i=21.8, u=23.3, z=20.7	SDSS
1.6	125.9521	3.3544	Mag=21.9	NED
1.7	125.9523	3.3541	R=21.1, g=22.0, i=20.3, u=21.3, z=20.2	SDSS
4.9	125.9517	3.3550	R=21.8, g=22.5, i=21.6, u=23.9, z=21.8	SDSS
5.3	125.9517	3.3553	Mag=21.4	NED
15.3	125.9487	3.3511	R=22.9, g=23.4, i=21.7, u=26.8, z=23.3	SDSS
24.2	125.9479	3.3594	Mag=23.1	NED
25.8	125.9506	3.3467	R=21.2, g=22.7, i=20.3, u=23.0, z=19.7	SDSS
26.2	125.9506	3.3466	R=20.9, g=22.2, i=20.1, u=23.8, z=19.5	SDSS
26.9	125.9504	3.3467	Mag=22.7	NED

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

There are 607 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
19.9	125.9478	3.3572	I=25.0, R=22.8, g=23.1, u=23.7, z=22.8	SDSS
24.7	125.9481	3.3593	I=21.3, R=21.8, g=23.2, u=25.8, z=21.0	SDSS
24.9	125.9482	3.3594	I=21.4, R=22.1, g=23.1, u=24.2, z=21.3	SDSS
27.8	125.9445	3.3550	I=22.3, R=22.4, g=22.4, u=22.5, z=22.0	SDSS
28.0	125.9444	3.3551	I=22.5, R=22.3, g=22.3, u=22.5, z=23.3	SDSS
37.4	125.9625	3.3537	I=21.8, R=24.1, g=24.2, u=24.5, z=21.3	SDSS
37.4	125.9625	3.3537	I=22.0, R=23.1, g=24.8, u=24.0, z=21.0	SDSS
46.4	125.9598	3.3640	B1=17.9, B2=18.9, I=17.1, R1=17.6, R2=17.4	USNO-B1
46.4	125.9599	3.3640	I=17.9, R=18.1, g=18.4, u=19.6, z=17.9	SDSS
46.5	125.9599	3.3640	I=17.9, R=18.1, g=18.4, u=19.5, z=17.9	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 459 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.