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Home > GRB region information > 531267

Swift Trigger: 531267

Presumed name: GRB 120817A

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Related pages: Burst Analyser | Enhanced position | Light curve | Spectrum | Image | XRT Catalogue entry | Download obs data | GCN Notices

BAT	16h 42m 49.44s, -38° 20′ 24.0″
position:	(250.706, -38.340 ± 180″)
XRT	16h 42m 45.84s, -38° 21′ 14.5″
position:	(250.69098, -38.35404 ± 4.2″)
UVOT	No position available.
Galactic NHI:	2.88×1021 cm-2
Galactic E(B-V):	NED unavailable

Best RA:	16h 42m 45.84s	= 250.69098 d
Best Dec:	-38° 21′ 14.5″	= -38.35404 d
Gal Lat:	5.08
Gal Long:	344.72
Sun angle:	108.98°, -6.9 hr East of Sun

¹Sper #4 auto processing.

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GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

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Sun angle for this burst.

UVOT data

Blink images with DSS (link via GSFC)

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XRT SPER data

SPER results page for this trigger.

There are 13 SPER messages, and 1 objects have been found

• • Object 1
  • RA (J2000) : 16 42 45.86 ( 250.69109)
  • Dec (J2000): -38 21 15.0 ( -38.35418)
  • Error (90%): 3.782"
  • Counts in Source: 62

See the SPER page for details of how this position was produced.

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Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query
0.0′′	250.69098	-38.35404		GCN #13662	GRB 120817A: Swift-XRT observations
2.4′′	250.69133	-38.35344		GCN #13664	GRB 120817A: FTN and FTS observations
5.4′′	250.68918	-38.35451		GCN #13667	GRB 120817A: Enhanced Swift-XRT position
62.0′′	250.70417	-38.34028		GCN #13661	GRB 120817A: Swift detection of a burst
82.4′′	250.69250	-38.37689		GCN #13669	GRB 120817A: Swift-BAT refined analysis

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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
159.9	250.7329	-38.3839	1RXS J164255.9-382302

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table2	Observatory	Query
159.6	250.7329	-38.3839	2.758e-2 +/- 1.149e-2	0.000e+0	RASSFSC

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*	Redshift		Catalogue	Query
6.9	250.6925	-38.3556		B2=17.6, I=16.2, R1=17.1, R2=18.3	USNO-B1
8.9	250.6881	-38.3530		B2=21.0, R2=20.4	USNO-B1
9.0	250.6881	-38.3530		B=20.5, R2=20.0	SSS
9.5	250.6876	-38.3537		B2=17.0, I=16.2, R2=20.3	USNO-B1
10.7	250.6873	-38.3548		B2=25.8, R2=22.1	USNO-B1
11.0	250.6908	-38.3571		B2=17.9, R1=17.9, R2=18.1	USNO-B1
11.2	250.6872	-38.3549		B=20.9, R2=20.3	SSS
12.6	250.6932	-38.3571		B2=19.1, R2=21.0	USNO-B1
15.3	250.6911	-38.3583		B2=18.4, I=16.0	USNO-B1
15.7	250.6923	-38.3498		B=20.6, R2=19.3, i=18.7	SSS

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

There are 1021 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	Query
2.9	250.6910	-38.3532	B2=18.1, R1=18.8, R2=20.2	USNO-B1
6.8	250.6914	-38.3522	B2=18.9, R1=21.4, R2=20.7	USNO-B1
7.0	250.6925	-38.3556	h=14.7, j=15.6, k=14.5	2MASS
8.9	250.6909	-38.3565	B2=17.5, R2=18.4	USNO-B1
8.9	250.6883	-38.3528	B2=18.1, R1=18.4, R2=20.1	USNO-B1
9.7	250.6880	-38.3527	B2=18.1, R1=19.4, R2=19.4	USNO-B1
11.1	250.6873	-38.3550	B2=18.3, R1=20.8, R2=21.9	USNO-B1
12.0	250.6903	-38.3573	B2=16.9, I=15.9, R1=16.4, R2=17.4	USNO-B1
12.8	250.6889	-38.3509	h=15.8, j=15.8, k=15.4	2MASS
13.0	250.6903	-38.3576	h=14.8, j=15.5, k=14.6	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 1964 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.