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Swift Trigger: 510649

Presumed name: GRB 111228A

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

BAT	10h 00m 18.96s, +18° 17′ 34.8″
position:	(150.079, +18.293 ± 180″)
XRT	10h 00m 16.15s, +18° 17′ 51.7″
position:	(150.0673, 18.2977 ± 2.0″)
UVOT	10h 00m 15.98s, +18° 17′ 51.7″
position:	(150.0666, +18.2977 ± 0.8″)
Galactic NHI:	2.95×1020 cm-2
Galactic E(B-V):	0.032 mag

Best RA:	10h 00m 15.98s	= 150.0666 d
Best Dec:	+18° 17′ 51.7″	= +18.2977 d
Gal Lat:	49.75
Gal Long:	216.33
Sun angle:	130.34°, 8.5 hr West

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 7 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 10 00 16.17 (18.2977)
  • Dec (J2000): +18 17 51.9 ( 18.29869)
  • Error (90%): 2.0
  • Counts in Source: 640

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
0.4′′	150.06671	18.29772		GCN #12737	GRB 111228A: Swift detection of a burst with an optical counterpart
0.9′′	150.06683	18.29783		GCN #12908	GRB 111228A: Possible host detected by Swift/UVOT
1.3′′	150.06696	18.29781		GCN #12754	GRB 111228A: GRAS017 optical observations
1.4′′	150.06699	18.29781		GCN #12747	GRB 111228A: Enhanced Swift-XRT position
8.3′′	150.06439	18.29866		GCN #12741	GRB 111228A: Possible host galaxy in the SDSS arhive
9.9′′	150.06469	18.29977		GCN #12742	GRB 111228A: TAROT Calern observatory. OT seems still bright
50.8′′	150.06300	18.28400		GCN #12749	GRB 111228A� Swift-BAT refined analysis
51.7′′	150.06700	18.28333		GCN #12918	=?WINDOWS-1251?Q?GRB_111228=C0�_the_review_of_the_sky_area_in_pl?= =?WINDOWS-1251?Q?ate_archives__?=
132.5′′	150.09458	18.32317		GCN #12832	GRB 111228A: optical observations
132.6′′	150.09458	18.32319		GCN #12798	GRB 111228A: optical observations in CrAO
132.6′′	150.09460	18.32318		GCN #12758	GRB 111228A: TAROT La Silla observatory observations

There are 22 matches in total. See the full table for details.

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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
83.6	150.0457	18.3086	SDSSCGB 17158.3	g=21.994, i=20.035, r=20.615, u=23.508, z=19.693
96.5	150.0438	18.3126	SDSSCGB 17158.4	g=21.778, i=20.090, r=20.836, u=23.859, z=19.537
97.4	150.0429	18.3117	SDSSCGB 17158
98.9	150.0425	18.3118	SDSSCGB 17158.1	g=19.152, i=17.888, r=18.318, u=20.228, z=17.647
111.0	150.0394	18.3135	SDSSCGB 17158.2	g=19.838, i=17.943, r=18.403, u=21.916, z=17.581

There are 5 SIMBAD objects within the position error. The full list is here.

* 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
8.3	150.0642	18.2986		Mag=21.3	NED
10.5	150.0644	18.2987		R=20.9, g=21.4, i=20.7, u=22.0, z=20.7	SDSS
11.6	150.0647	18.2998		B2=20.7, R1=19.4, R2=19.9	USNO-B1
22.1	150.0618	18.2944		R=22.9, g=23.4, i=21.6, u=24.3, z=20.6	SDSS
31.9	150.0696	18.3063		R=23.5, g=23.8, i=21.8, u=25.3, z=21.6	SDSS
36.4	150.0746	18.3044		Mag=20.9	NED
36.6	150.0575	18.3028		Mag=20.5	NED
38.3	150.0780	18.2946		R=22.4, g=21.9, i=22.8, u=23.6, z=22.1	SDSS
49.8	150.0788	18.2892		R=21.9, g=23.9, i=21.9, u=25.7, z=21.6	SDSS
51.8	150.0788	18.2892		Mag=24.3	NED

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

There are 338 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
11.6	150.0685	18.2947	I=19.2, R1=19.7	USNO-B1
21.1	150.0730	18.3000	I=24.8, R=24.8, g=25.7, u=22.4, z=22.7	SDSS
28.5	150.0624	18.2913	I=24.5, R=24.9, g=25.8, u=22.1, z=22.9	SDSS
29.4	150.0675	18.3059	I=18.7, R1=19.4, R2=19.7	USNO-B1
34.6	150.0745	18.3045	I=19.8, R=20.2, g=20.9, u=23.2, z=19.6	SDSS
35.1	150.0745	18.3047	B1=20.9, B2=20.8, R1=19.3, R2=19.7	USNO-B1
38.7	150.0574	18.3029	I=18.0, R=19.0, g=20.5, u=22.7, z=17.4	SDSS
38.7	150.0573	18.3028	h=15.4, j=16.1, k=15.1	2MASS
38.9	150.0574	18.3030	B2=20.6, I=17.5, R1=18.9, R2=18.9	USNO-B1
53.2	150.0815	18.2917	B1=20.8, B2=20.8, R2=19.5	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 171 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.