Swift Trigger: 361489

Presumed name: GRB 090831C

BAT	07 13 06.7 -25 06 00.0
position:	(108.2780, -25.1000 +/-180")
XRT	07 13 10.7 -25 07 06.6
position:	(108.2944, -25.1185 +/-2.2")
UVOT
position:	(Unknown)
Galactic Nh:	cm^-2
Galactic E(B-V):	0.377 mag

Best RA:	07 13 10.7	= 108.2944 d
Best Dec:	-25 07 06.6	= -25.1185 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.

DSS - Blue DSS FITS file

2MASS - J 2MASS FITS file

UVOT data

unknown image
No trigger time found!
Exposure: 0 s

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
0.5′′	108.29453	-25.11859	GCN #9855	GRB 090831C: Enhanced Swift-XRT position
0.6′′	108.29454	-25.11858	GCN #9855	GRB 090831C: Enhanced Swift-XRT position
5.2′′	108.29308	-25.11933	GCN #9854	GRB 090831C: Swift detection of a burst
5.3′′	108.29307	-25.11934	GCN #9854	GRB 090831C: Swift detection of a burst
22.6′′	108.29417	-25.11222	GCN #9863	GRB 090831C BAT refined analysis
23.4′′	108.29400	-25.11200	GCN #9863	GRB 090831C BAT refined analysis
83.1′′	108.27917	-25.10000	GCN #9854	GRB 090831C: Swift detection of a burst
85.4′′	108.27800	-25.10000	GCN #9854	GRB 090831C: Swift detection of a burst

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
22.6	108.2942	-25.1122	GRB 090831C
150.4	108.3344	-25.0977	2MASX J07132025-2505516	H=13.321, J=14.029, K=13.02
191.7	108.3227	-25.0718	2MASX J07131745-2504186	H=12.56, J=13.387, K=12.241

* 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
5.2	108.2929	-25.1194		NED
30.2	108.3013	-25.1129	B=19.0, R2=18.4, i=18.0	SSS
31.2	108.2860	-25.1143	B=20.1, R2=19.2, i=18.7	SSS
32.0	108.3018	-25.1126	B1=19.3, B2=17.5, I=15.9, R1=16.6	USNO-B1
33.7	108.3022	-25.1124	B=18.7, R2=18.0, i=17.4	SSS
41.8	108.2922	-25.1299	B1=18.2, B2=18.5, I=17.2, R1=17.4, R2=17.1	USNO-B1
42.1	108.2816	-25.1168	I=17.0, R2=14.4	USNO-B1
43.8	108.2817	-25.1145	B1=20.2, B2=19.9, I=18.4, R1=18.9, R2=18.3	USNO-B1
44.5	108.2808	-25.1172	B1=16.7, B2=16.6, I=14.7, R1=15.4, R2=14.8	USNO-B1
46.4	108.3037	-25.1087	B2=20.8, R1=19.8, R2=19.7	USNO-B1

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

There are 174 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
7.7	108.2951	-25.1205	B1=20.1, B2=19.8, I=18.5, R1=19.0, R2=19.0	USNO-B1
9.3	108.2972	-25.1184	h=14.4, j=15.0, k=14.2	2MASS
9.4	108.2973	-25.1184	B1=18.5, B2=18.3, I=16.3, R1=16.7, R2=16.7	USNO-B1
12.5	108.2932	-25.1218	B1=17.8, B2=18.0, I=16.7, R1=16.7, R2=16.8	USNO-B1
12.7	108.2932	-25.1218	h=15.2, j=15.6, k=15.0	2MASS
16.5	108.2994	-25.1195	B1=20.4, B2=20.5, I=18.0, R1=18.9, R2=18.2	USNO-B1
17.6	108.2983	-25.1151	h=15.2, j=15.6, k=14.8	2MASS
17.7	108.2983	-25.1151	B1=19.4, B2=18.9, I=16.7, R1=17.5, R2=17.1	USNO-B1
20.7	108.2886	-25.1161	B1=18.6, B2=18.4, I=16.8, R1=17.2, R2=16.7	USNO-B1
20.7	108.2886	-25.1161	h=15.1, j=15.5, k=15.0	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 651 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.