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Home > GRB region information > 1156572

Swift Trigger: 1156572

Presumed name: GRB 230228A

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

BAT	01h 13m 36.72s, +44° 29′ 20.4″
position:	(18.403, 44.489 ± 180″)
XRT	01h 13m 30.78s, +44° 28′ 58.5″
position:	(18.37824, 44.48293 ± 1.9″)
UVOT	No position available.
Galactic NHI:	7.56×1020 cm-2
Galactic E(B-V):	0.078 mag

Best RA:	01h 13m 30.78s	= 18.37824 d
Best Dec:	+44° 28′ 58.5″	= 44.48293 d
Gal Lat:	-18.21
Gal Long:	127.07
Sun angle:	62.70°, -2.5 hr East of Sun

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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 10 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 01 13 30.73 (44.48289)
  • Dec (J2000): +44 28 58.4 ( 44.48314)
  • Error (90%): 1.9
  • 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
0.3′′	18.37813	44.48292		GCN #33382	GRB 230228A: Enhanced Swift-XRT position
0.5′′	18.37804	44.48289		GCN #33380	GRB 230228A: Miryang Arirang Astronomical Observatory (MAAO) 0.7-m telescope optical upper limit
0.5′′	18.37804	44.48289		GCN #33379	GRB 230228A: Prompt enhanced Swift-XRT position
1.6′′	18.37776	44.48321		GCN #33378	GRB 230228A: Swift detection of a possibly short burst
64.9′′	18.39700	44.49500		GCN #33393	GRB 230228A: Swift-BAT refined analysis
133.2′′	18.39736	44.44853		GCN #33383	GRB 230228A: Mondy optical upper limit

There are 13 matches in total. See the full table for details.

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Catalogue Searches. Searched 200′ 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
193.2	18.3306	44.4414	BD+43 250	B=9.72, G=9.218011, H=8.262, J=8.459, K=8.162, V=9.33

* 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
15.1	18.3792	44.4869			NED
26.1	18.3825	44.4764			NED
27.1	18.3758	44.4756			NED
27.4	18.3821	44.4758			NED
28.4	18.3817	44.4756			NED
31.0	18.3789	44.4743		B2=20.6, R1=18.2, R2=18.6	USNO-B1
32.7	18.3679	44.4881			NED
32.7	18.3745	44.4742		B1=13.4, B2=12.6, I=11.1, R1=11.4, R2=11.8	USNO-B1
33.9	18.3742	44.4739			NED
36.6	18.3900	44.4772			NED

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

There are 264 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
26.1	18.3827	44.4764	h=14.5, j=14.8, k=14.4	2MASS
27.1	18.3758	44.4756	h=15.1, j=15.3, k=15.1	2MASS
27.3	18.3820	44.4758	B1=14.8, B2=14.5, I=13.1, R1=14.2, R2=14.1	USNO-B1
28.4	18.3818	44.4754	h=14.1, j=14.2, k=14.2	2MASS
30.2	18.3783	44.4745	B1=19.4, B2=19.9, R2=17.9	USNO-B1
33.9	18.3742	44.4740	h=10.8, j=11.1, k=10.7	2MASS
35.9	18.3900	44.4775	I=18.6, R2=19.2	USNO-B1
44.9	18.3608	44.4839	B2=21.5, I=18.4, R1=19.3, R2=19.1	USNO-B1
45.2	18.3614	44.4792	B1=19.8, B2=19.6, I=18.8, R1=17.9, R2=18.0	USNO-B1
48.3	18.3858	44.4706	h=15.7, j=16.4, k=15.7	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 196 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.