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Home > GRB region information > 639275

Swift Trigger: 639275

Presumed name: GRB 150428A

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

BAT	12h 34m 10.32s, +06° 58′ 51.6″
position:	(188.543, +6.981 ± 180″)
XRT	12h 34m 09.33s, +06° 57′ 07.6″
position:	(188.53889, 6.95211 ± 3.7″)
UVOT	No position available.
Galactic NHI:	1.53×100 cm-2
Galactic E(B-V):	0.021 mag

Best RA:	12h 34m 09.33s	= 188.53889 d
Best Dec:	+06° 57′ 07.6″	= 6.95211 d
Gal Lat:	69.41
Gal Long:	290.65
Sun angle:	not found

¹Sper #1 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

No UVOT images are currently available.

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XRT SPER data

SPER results page for this trigger.

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

• • Object 1
  • RA (J2000) : 12 34 09.33 ( 188.53889)
  • Dec (J2000): +06 57 07.6 ( 6.95211)
  • Error (90%): 3.699"
  • Counts in Source: 111

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′′	188.53889	6.95211		GCN #17765	GRB 150428A: Swift detection of a burst
1.6′′	188.53858	6.95242		GCN #17767	GRB 150428A: GROND Dark Burst Host Candidate
6.3′′	188.53873	6.95384		GCN #30324	GRB 150428A: late-time radio observations
6.4′′	188.53879	6.95389		GCN #17768	GRB 150428A: Enhanced Swift-XRT position
6.7′′	188.53845	6.95391		GCN #17771	GRB 150428A: Danish1.56m optical observations
53.2′′	188.53875	6.96689		GCN #17774	GRB 150428A: Swift-BAT refined analysis

There are 11 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
179.4	188.5350	6.9024	TYC 295-22-1	B=11.90, H=9.744, J=10.067, K=9.641, V=11.22
180.2	188.5893	6.9547	SDSSCGB 18337.4	g=22.052, i=20.275, r=20.745, u=22.524, z=19.594
189.9	188.5919	6.9560	SDSSCGB 18337.3	g=21.500, i=20.401, r=20.682, u=21.685, z=20.055
190.7	188.5921	6.9561	SDSSCGB 18337
190.8	188.5920	6.9577	SDSSCGB 18337.2	g=20.545, i=18.970, r=19.297, u=21.382, z=18.563
198.7	188.5944	6.9561	SDSSCGB 18337.1	g=19.635, i=18.997, r=19.203, u=20.618, z=18.964

There are 6 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
80.1	188.5474	6.9315	0.00454385811463 +/- 0.0017209056532	CHANDRA

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
16.4	188.5429	6.9498		R=21.6, g=22.5, i=22.7, u=22.2, z=21.0	SDSS
16.9	188.5429	6.9500			NED
18.2	188.5429	6.9547		Mag=21.6	NED
18.2	188.5432	6.9548		R=20.7, g=21.6, i=20.7, u=22.1, z=20.0	SDSS
18.5	188.5433	6.9548		B2=20.9, R2=20.0	USNO-B1
21.5	188.5392	6.9581		Mag=21.6	NED
26.6	188.5413	6.9450		Mag=20.0	NED
27.3	188.5408	6.9448		B2=20.2, I=18.3	USNO-B1
28.5	188.5313	6.9546		R=22.9, g=23.6, i=22.0, u=24.1, z=21.7	SDSS
32.5	188.5362	6.9433		Mag=21.5	NED

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

There are 409 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
21.7	188.5398	6.9581	B1=20.8, B2=22.0, R2=19.2	USNO-B1
24.0	188.5409	6.9457	B2=21.7, I=18.8, R1=19.9	USNO-B1
26.5	188.5413	6.9452	B1=20.4, B2=20.3, I=18.9, R1=19.6, R2=19.4	USNO-B1
26.6	188.5413	6.9451	I=19.3, R=19.4, g=19.9, u=21.1, z=19.3	SDSS
32.3	188.5363	6.9435	B2=21.8, I=18.9, R2=19.5	USNO-B1
41.7	188.5307	6.9438	I=22.1, R=22.2, g=24.8, u=24.2, z=21.0	SDSS
42.8	188.5376	6.9403	B2=20.6, I=18.9, R1=19.5, R2=20.0	USNO-B1
42.9	188.5288	6.9586	B2=20.8, I=18.8, R1=19.3, R2=19.8	USNO-B1
44.2	188.5336	6.9632	B2=21.0, R1=18.3	USNO-B1
54.0	188.5533	6.9478	B1=20.6, B2=20.3	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 197 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.