Swift Trigger: 555413

Presumed name: GRB 130508A

BAT	20^h 21^m 14.88^s, +34° 56′ 56.4″
position:	(305.312, +34.949 ± 180″)
XRT	20^h 21^m 17.21^s, +34° 57′ 29.9″
position:	(305.3217, 34.9583 ± 2.5″)
UVOT	No position available.
Galactic N_HI:	7.72×10²¹ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	20^h 21^m 17.21^s	= 305.3217 d
Best Dec:	+34° 57′ 29.9″	= 34.9583 d

Gal Lat:	-1
Gal Long:	73.69

Sun angle:	88.31°, 6.7 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

u image

white image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

There are 4 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 20 21 17.20 (34.9583)
- Dec (J2000): +34 57 29.9 ( 34.95640)
- Error (90%): 2.5
- Counts in Source: 83

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
0.0′′	305.32170	34.95830	GCN #14607	GRB 130508A: Swift detection of a probable burst
0.1′′	305.32175	34.95831	GCN #14614	GRB 130508A: Refined Swift-XRT analysis: Correction to GCN 14612
0.1′′	305.32175	34.95831	GCN #14612	GRB 130508A: Swift-XRT refined Analysis
90.3′′	305.35083	34.96600	GCN #14613	GRB 130508A� 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
26.4	305.3279	34.9636	IRAS 20193+3448
124.6	305.3577	34.9402	TYC 2680-569-1	B=12.25, V=12.06

* 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
17.1	305.3218	34.9631	B1=15.5, B2=15.8, I=13.7, R1=14.4, R2=14.9	USNO-B1
22.7	305.3290	34.9603	I=18.2, R1=17.9, R2=19.5	USNO-B1
26.6	305.3253	34.9516	B1=19.4, B2=20.5, I=16.8, R1=17.5, R2=18.4	USNO-B1
27.1	305.3308	34.9572	I=18.2, R1=17.9, R2=19.3	USNO-B1
29.8	305.3215	34.9666	B2=20.6, I=16.5, R1=17.5, R2=18.3	USNO-B1
30.7	305.3150	34.9648	I=16.7, R1=18.2, R2=19.2	USNO-B1
33.9	305.3156	34.9663	I=18.6, R2=19.6	USNO-B1
37.2	305.3107	34.9532	R1=18.6, R2=19.4	USNO-B1
38.1	305.3093	34.9612	I=16.8, R2=18.9	USNO-B1
38.7	305.3087	34.9597	I=18.2, R1=17.7, R2=19.3	USNO-B1

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

There are 253 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
9.0	305.3231	34.9605	h=15.0, j=15.8, k=14.8	2MASS
12.7	305.3234	34.9551	h=15.9, j=16.8, k=15.3	2MASS
13.4	305.3243	34.9614	h=15.6, j=16.6, k=15.1	2MASS
15.7	305.3164	34.9581	h=15.5, j=16.4, k=14.9	2MASS
16.4	305.3262	34.9609	h=15.6, j=16.8, k=14.9	2MASS
16.9	305.3218	34.9630	h=12.9, j=13.3, k=12.8	2MASS
20.4	305.3256	34.9630	h=14.2, j=15.5, k=13.4	2MASS
21.5	305.3173	34.9535	h=15.7, j=16.7, k=15.3	2MASS
25.1	305.3132	34.9579	h=15.8, j=17.3, k=15.4	2MASS
26.8	305.3253	34.9515	h=14.9, j=15.6, k=14.7	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 894 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.