Swift Trigger: 378559

Presumed name: GRB 091208B

BAT	01 57 38.4 +16 52 58.8
position:	(29.4100, 16.8830 +/-180")
XRT	01 57 34.1 +16 53 23.6
position:	(29.3920, 16.8899 +/-2.1")
UVOT
position:	(Unknown)
Galactic Nh:	cm^-2
Galactic E(B-V):	0.053 mag

Best RA:	01 57 34.1	= 29.3920 d
Best Dec:	+16 53 23.6	= 16.8899 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
0.0′′	29.39200	16.88990	GCN #10256	GRB 091208B: Swift detection of a burst with an optical afterglow
0.1′′	29.39204	16.88989	GCN #10256	GRB 091208B: Swift detection of a burst with an optical afterglow
0.8′′	29.39204	16.88967	GCN #10267	GRB091208B: Swift/UVOT refined analysis
0.8′′	29.39204	16.88967	GCN #10267	GRB091208B: Swift/UVOT refined analysis
1.0′′	29.39221	16.88972	GCN #10255	GRB 091208B: BOOTES-3 optical afterglow
1.0′′	29.39192	16.88964	GCN #10256	GRB 091208B: Swift detection of a burst with an optical afterglow
1.2′′	29.39221	16.88964	GCN #10259	GRB 091208B: Enhanced Swift-XRT position
1.2′′	29.39223	16.88965	GCN #10259	GRB 091208B: Enhanced Swift-XRT position
66.8′′	29.41000	16.88300	GCN #10256	GRB 091208B: Swift detection of a burst with an optical afterglow
71.5′′	29.41042	16.88075	GCN #10265	GRB 091208B� Swift-BAT refined analysis
72.9′′	29.41100	16.88100	GCN #10265	GRB 091208B� Swift-BAT refined analysis

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
71.5	29.4104	16.8807	GRB 091208B

* 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
1.0	29.3917	16.8897		NED
3.7	29.3917	16.8889	B1=21.2, I=18.9, R2=19.7	USNO-B1
5.1	29.3923	16.8885	B=21.5, R=20.0	APM-N
13.7	29.3893	16.8927	I=18.8, R1=20.1, R2=19.8	USNO-B1
22.0	29.3883	16.8849	B=19.7, R=18.8	APM-N
24.7	29.3991	16.8910	B=22.1, R=19.2	APM-N
50.0	29.3994	16.8779	B1=21.1, I=18.7, R1=19.6, R2=19.6	USNO-B1
83.9	29.4158	16.8852	B1=20.4, B2=21.1	USNO-B1
86.0	29.4165	16.8852	B1=21.2, B2=21.2	USNO-B1
99.8	29.3893	16.8623	B=21.8, R=20.0	APM-N

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

There are 47 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
22.5	29.3881	16.8849	B1=18.5, B2=19.7, I=18.1, R1=18.4, R2=18.2	USNO-B1
24.6	29.3990	16.8909	B1=20.9, B2=21.1, I=18.7, R1=19.2, R2=19.3	USNO-B1
34.8	29.3894	16.8806	B1=18.9, B2=19.0, I=16.2, R1=16.8, R2=16.9	USNO-B1
34.8	29.3895	16.8805	h=14.9, j=15.4, k=14.7	2MASS
57.1	29.3763	16.8950	h=14.9, j=15.6, k=14.7	2MASS
57.5	29.3762	16.8950	B1=19.4, B2=19.3, I=16.4, R1=17.2, R2=17.1	USNO-B1
66.5	29.4035	16.9047	I=19.1, R2=19.8	USNO-B1
79.7	29.3821	16.8699	B1=15.1, B2=14.8, I=13.0, R1=13.9, R2=13.7	USNO-B1
79.9	29.3822	16.8698	h=12.5, j=12.8, k=12.4	2MASS
85.2	29.3700	16.9008	h=14.9, j=15.5, k=15.0	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 71 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.