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Home > GRB region information > 540178

Swift Trigger: 540178

Presumed name: GRB 121201A

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

BAT	00h 53m 57.12s, -42° 57′ 07.2″
position:	(13.488, -42.952 ± 180″)
XRT	00h 53m 52.22s, -42° 56′ 35.5″
position:	(13.4676, -42.9432 ± 2.1″)
UVOT	00h 53m 52.15s, -42° 56′ 34.4″
position:	(13.4673, -42.9429 ± 0.7″)
Galactic NHI:	1.99×1020 cm-2
Galactic E(B-V):	NED unavailable

Best RA:	00h 53m 52.15s	= 13.4673 d
Best Dec:	-42° 56′ 34.4″	= -42.9429 d
Gal Lat:	-74.18
Gal Long:	301.3
Sun angle:	98.14°, -8.4 hr East of Sun

¹Sper #6 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 7 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 00 53 52.22 (-42.9432)
  • Dec (J2000): -42 56 35.6 ( -42.94284)
  • Error (90%): 2.1
  • Counts in Source: 390

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
0.1′′	13.46733	-42.94292		GCN #14030	GRB 121201: Swift/UVOT Detection
0.2′′	13.46738	-42.94289		GCN #14025	GRB 121201A: a GRB with an optical counterpart
0.9′′	13.46758	-42.94306		GCN #14027	GRB 121201A: Enhanced Swift-XRT position
51.1′′	13.47333	-42.92942		GCN #14028	GRB 121201A: Swift-BAT refined analysis

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Catalogue Searches. Searched 3.33′ around UVOT 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
40.4	13.4556	-42.9501	CD-43 254	B=11.33, H=8.384, J=8.789, K=8.290, V=10.44

* 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*	Redshift		Catalogue	Query
43.3	13.4523	-42.9478		B2=20.0, I=18.7, R1=19.0	USNO-B1
61.3	13.4554	-42.9576		B2=20.2, R2=19.3	USNO-B1
63.5	13.4452	-42.9500		R1=19.8, R2=19.5	USNO-B1
64.1	13.4833	-42.9294		Mag=18.5	NED
67.5	13.4929	-42.9432		B2=18.8, I=17.6, R1=16.3, R2=16.7	USNO-B1
70.1	13.4800	-42.9258		Mag=19.47	NED
72.8	13.4425	-42.9517		Mag=18.9	NED
77.3	13.4909	-42.9302		B2=19.4, R2=19.8	USNO-B1
91.4	13.4574	-42.9186		h=14.1, j=14.9, k=13.8	2MASS
91.6	13.4575	-42.9186		Mag=18.42	NED

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

There are 42 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
27.1	13.4651	-42.9503	B2=20.2, R2=19.3	USNO-B1
27.2	13.4664	-42.9504	R1=19.8, R2=19.2	USNO-B1
28.6	13.4632	-42.9502	B2=19.6, R2=19.2	USNO-B1
29.1	13.4563	-42.9423	B2=20.0, I=18.2, R2=19.3	USNO-B1
31.2	13.4555	-42.9423	B2=20.2, R2=19.6	USNO-B1
31.3	13.4612	-42.9503	B2=18.7, I=18.9, R1=16.9	USNO-B1
31.4	13.4557	-42.9448	B2=19.8, I=18.8, R1=19.6	USNO-B1
40.4	13.4556	-42.9501	h=8.4, j=8.8, k=8.3	2MASS
45.3	13.4513	-42.9476	h=15.6, j=16.1, k=15.3	2MASS
46.6	13.4512	-42.9483	B2=20.0, I=18.0, R2=17.1	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 63 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.