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Home > GRB region information > 1299967

Swift Trigger: 1299967

Presumed name: GRB 250331C

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

BAT	05h 23m 58.32s, +33° 01′ 44.4″
position:	(80.993, +33.029 ± 180″)
XRT	05h 23m 49.51s, +33° 03′ 47.4″
position:	(80.95630, 33.06317 ± 1.9″)
UVOT	No position available.
Galactic NHI:	5.05×1021 cm-2
Galactic E(B-V):	0.892 mag

Best RA:	05h 23m 49.51s	= 80.95630 d
Best Dec:	+33° 03′ 47.4″	= 33.06317 d
Gal Lat:	-1.69
Gal Long:	174
Sun angle:	72.24°, -4.8 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) : 05 23 49.54 (33.06317)
  • Dec (J2000): +33 03 47.4 ( 33.06334)
  • Error (90%): 1.9
  • Counts in Source: 205

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

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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
40.3	80.9580	33.0743	2MASS J05234991+3304273	B=18.01, G=16.946444, H=15.442, J=15.555, K=15.359, V=17.15
46.1	80.9524	33.0755	2MASS J05234856+3304319	B=15.65, G=15.196806, H=13.454, J=13.810, K=13.345, V=15.43
63.2	80.9535	33.0806	2MASS J05234882+3304500	B=17.34, G=16.889315, H=14.970, J=15.383, K=14.802, V=17.11
67.1	80.9419	33.0774	[MJD95] J052346.01+330438.6	B=17.62, V=17.36
89.9	80.9397	33.0839	2MASS J05234553+3305021	B=17.1, G=15.482062, H=12.284, J=13.017, K=12.054, V=16.14
97.7	80.9580	33.0903	[MJD95] J052349.85+330525.1	B=15.64, V=15.56
100.7	80.9671	33.0896	2MASS J05235210+3305226	B=12.89, G=12.613361, H=11.112, J=11.406, K=11.038, V=12.80
103.5	80.9789	33.0848	TYC 2394-114-1	B=11.91, G=11.252131, H=9.933, J=10.191, K=9.863, V=11.07
104.6	80.9490	33.0916	2MASS J05234774+3305296	B=15.26, G=14.878833, H=13.758, J=13.875, K=13.601, V=14.99
115.8	80.9762	33.0907	2MASS J05235427+3305264	B=17.3, G=16.397308, H=13.986, J=14.581, K=13.800, V=16.81

There are 26 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
7.4	80.9579	33.0617			NED
20.7	80.9500	33.0608			NED
20.9	80.9499	33.0609		B1=18.2, B2=17.4, I=16.4, R1=17.1, R2=16.6	USNO-B1
24.0	80.9625	33.0672			NED
26.5	80.9475	33.0647			NED
26.8	80.9476	33.0648		B1=17.2, B2=16.5, I=15.3, R1=15.7, R2=15.7	USNO-B1
30.4	80.9467	33.0603			NED
31.1	80.9510	33.0558		B1=19.9, B2=19.3, I=17.5, R1=18.1, R2=18.4	USNO-B1
33.3	80.9625	33.0706			NED
34.2	80.9454	33.0656			NED

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

There are 380 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
7.2	80.9580	33.0618	B1=16.1, B2=15.4, I=14.3, R1=14.7, R2=14.6	USNO-B1
7.4	80.9580	33.0617	h=13.1, j=13.4, k=13.0	2MASS
8.4	80.9566	33.0655	B1=20.5, B2=20.3, I=18.4, R2=19.2	USNO-B1
17.0	80.9507	33.0638	B2=20.1, I=18.0, R1=18.9, R2=18.7	USNO-B1
20.7	80.9501	33.0608	h=15.2, j=15.7, k=15.1	2MASS
24.0	80.9627	33.0671	h=16.1, j=17.0, k=15.6	2MASS
24.9	80.9629	33.0673	I=18.3, R1=19.4, R2=19.4	USNO-B1
26.5	80.9477	33.0647	h=14.3, j=14.7, k=14.1	2MASS
30.3	80.9468	33.0605	B1=15.8, B2=15.3, I=14.3, R1=14.5, R2=14.4	USNO-B1
30.4	80.9468	33.0604	h=12.9, j=13.2, k=12.8	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 498 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.