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Swift Trigger: 338338

Presumed name: GRB 081228

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

BAT	02h 37m 52.08s, +30° 50′ 34.8″
position:	(39.467, +30.843 ± 180″)
XRT	02h 37m 50.54s, +30° 51′ 11.9″
position:	(39.4606, 30.8533 ± 3.8″)
UVOT	No position available.
Galactic NHI:	0.00×100 cm-2
Galactic E(B-V):	0.161 mag

Best RA:	02h 37m 50.54s	= 39.4606 d
Best Dec:	+30° 51′ 11.9″	= 30.8533 d
Gal Lat:
Gal Long:
Sun angle:	not found

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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.

No SPER data received yet. Refresh this page to check again.

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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
2.3′′	39.46042	30.85392		GCN #8742	GRB 081228: Swift detection of a burst
3.8′′	39.46154	30.85264		GCN #8744	GRB 081228: Enhanced Swift-XRT position
3.8′′	39.46154	30.85264		GCN #8745	GRB 081228: detection by GROND
5.3′′	39.46204	30.85253		GCN #8746	GRB 081228: Swift-XRT Team refined analysis
5.3′′	39.46225	30.85292		GCN #8752	GRB 081228: GROND confirmation of the optical/NIR afterglow
88.9′′	39.47700	30.83300		GCN #8749	GRB 081228� 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
4.2	39.4617	30.8526	GRB 081228
59.7	39.4550	30.8692	1RXS J023749.2+305209
60.7	39.4580	30.8700	IRAS F02348+3039

There are 3 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
59.4	39.4550	30.8692	1.860e-2 +/- 8.726e-3	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
2.3	39.4604	30.8539			NED
17.9	39.4657	30.8509		R1=20.0, R2=20.4	USNO-B1
21.9	39.4540	30.8555		B=20.7, R=18.9	APM-N
24.4	39.4638	30.8595		B2=21.4, I=18.5, R1=19.5, R2=19.4	USNO-B1
34.1	39.4692	30.8592		B1=19.1, B2=19.3, I=18.5, R1=18.5, R2=18.7	USNO-B1
48.0	39.4499	30.8630		B2=21.3, R2=20.2	USNO-B1
61.3	39.4625	30.8364		B1=19.8, B2=19.9, I=16.2, R1=17.1, R2=17.4	USNO-B1
68.2	39.4817	30.8587		B1=18.6, B2=18.6, I=16.6, R1=16.7, R2=17.1	USNO-B1
74.4	39.4529	30.8728			NED
74.4	39.4529	30.8729		h=14.8, j=15.7, k=14.2	2MASS

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

There are 33 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
21.9	39.4540	30.8555	B1=20.3, B2=20.3, I=18.4, R1=18.7, R2=19.1	USNO-B1
24.5	39.4640	30.8594	h=16.0, j=16.7, k=15.6	2MASS
31.7	39.4605	30.8621	h=12.3, j=12.8, k=12.1	2MASS
31.8	39.4605	30.8621	B1=16.0, B2=15.8, I=13.7, R1=14.1, R2=14.4	USNO-B1
51.8	39.4707	30.8648	h=13.7, j=14.3, k=13.5	2MASS
51.8	39.4706	30.8648	B1=18.0, B2=18.0, I=15.4, R1=16.0, R2=16.2	USNO-B1
57.2	39.4450	30.8618	h=14.0, j=14.2, k=13.8	2MASS
57.4	39.4449	30.8619	B1=15.7, B2=15.7, I=14.6, R1=14.7, R2=15.0	USNO-B1
58.7	39.4791	30.8496	h=16.2, j=16.6, k=15.6	2MASS
61.3	39.4625	30.8363	h=14.1, j=14.7, k=13.8	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 92 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.