Swift Trigger: 421124

Presumed name: GRB 100504A

BAT	17^h 02^m 17.28^s, -35° 35′ 56.4″
position:	(255.572, -35.599 ± 180″)
XRT	17^h 02^m 17.14^s, -35° 35′ 13.9″
position:	(255.5714, -35.5872 ± 2.5″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.840 mag

Best RA:	17^h 02^m 17.14^s	= 255.5714 d
Best Dec:	-35° 35′ 13.9″	= -35.5872 d

Gal Lat:
Gal Long:

Sun angle:	not found

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

unknown image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Source	Misc
0.8′′	255.57137	-35.58742	GCN #10718	GRB 100504A: Enhanced Swift-XRT position
1.1′′	255.57175	-35.58733	GCN #10713	GRB 100504A: UVOT-enhanced XRT position
2.5′′	255.57054	-35.58711	GCN #10712	GRB 100504A: Swift detection of a burst
14.6′′	255.57500	-35.59000	GCN #10716	GRB 100504A: Swift-BAT refined analysis

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
0.8	255.5714	-35.5874	GRB 100504A

* 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	255.5717	-35.5872		NED
2.8	255.5708	-35.5866	B=20.7	SSS
7.2	255.5731	-35.5886	B=20.2	SSS
9.0	255.5684	-35.5868	B2=18.6, I=15.3	USNO-B1
10.9	255.5713	-35.5842	B2=18.9, I=17.4, R1=17.8	USNO-B1
12.7	255.5750	-35.5892	B2=17.4, I=18.1, R1=18.2, R2=17.7	USNO-B1
13.4	255.5750	-35.5894	B=19.1, R2=19.8, i=19.6	SSS
17.3	255.5655	-35.5866	B2=19.1, R2=16.8	USNO-B1
17.5	255.5678	-35.5911	B2=19.2, R1=18.8	USNO-B1
17.7	255.5740	-35.5828	I=16.6, R1=14.1	USNO-B1

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

There are 1083 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
6.7	255.5691	-35.5872	h=12.1, j=13.0, k=11.8	2MASS
8.0	255.5723	-35.5851	B2=18.7, I=15.5, R2=17.9	USNO-B1
8.0	255.5728	-35.5891	B2=18.4, R1=18.9	USNO-B1
9.1	255.5684	-35.5866	B2=14.8, I=13.8, R1=13.9, R2=14.1	USNO-B1
9.8	255.5729	-35.5896	B2=17.8, I=17.7, R1=18.6, R2=18.3	USNO-B1
10.4	255.5746	-35.5885	B2=20.1, R1=19.4, R2=19.8	USNO-B1
10.5	255.5712	-35.5843	h=14.7, j=15.4, k=14.5	2MASS
10.5	255.5680	-35.5862	h=12.5, j=12.9, k=12.5	2MASS
14.2	255.5753	-35.5896	B2=17.7, I=18.2, R1=18.4, R2=17.9	USNO-B1
16.4	255.5763	-35.5850	B2=19.9, I=19.0, R2=20.9	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 2377 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.