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Home > GRB region information > 1336720

Swift Trigger: 1336720

Presumed name: GRB 250725A

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Related pages: Burst Analyser | Enhanced position | Spectrum | Image | Download obs data | GCN Notices

BAT	02h 21m 32.40s, -82° 47′ 02.4″
position:	(35.385, -82.784 ± 180″)
XRT	02h 21m 54.82s, -82° 47′ 28.3″
position:	(35.47842, -82.79120 ± 3.5″)
UVOT	No position available.
Galactic NHI:	6.56×1020 cm-2
Galactic E(B-V):	0.111 mag

Best RA:	02h 21m 54.82s	= 35.47842 d
Best Dec:	-82° 47′ 28.3″	= -82.79120 d
Gal Lat:	-33.74
Gal Long:	299.6
Sun angle:	109.40°, 6.0 hr West

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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 12 SPER messages, and 1 objects have been found

• • Object 1
  • RA (J2000) : 02 21 54.74 ( 35.47808)
  • Dec (J2000): -82 47 27.2 ( -82.79090)
  • Error (90%): 3.500"
  • Counts in Source: 1616

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
143.9	35.3685	-82.8287	TYC 9491-1843-1	B=12.51, G=11.936645, H=10.71, J=10.966, K=10.658, V=12.29
167.5	35.1670	-82.8166	2MASX J02203988-8249001	G=20.478739, H=14.011, J=14.856, K=13.757
183.3	35.4712	-82.7403	LEDA 222483

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
137.9	35.7203	-82.7679	0.0496425144 +/- 0.01798142865	SRG-EROSIT
153.2	35.7087	-82.8225	0.038346421 +/- 0.01551063173	SRG-EROSIT

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
13.7	35.4775	-82.7950			NED
22.2	35.4400	-82.7950			NED
24.1	35.5183	-82.7867			NED
26.9	35.5354	-82.7892			NED
27.2	35.5379	-82.7922			NED
29.4	35.5058	-82.7986			NED
29.5	35.4963	-82.7833			NED
31.3	35.4288	-82.7972			NED
36.3	35.4483	-82.7819			NED
41.2	35.5558	-82.7972			NED

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

There are 296 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
32.4	35.4270	-82.7975	B2=21.9, R2=20.6	USNO-B1
42.3	35.5717	-82.7923	B2=17.9, I=16.5, R1=16.6, R2=16.5	USNO-B1
42.4	35.5719	-82.7923	h=15.0, j=15.6, k=14.9	2MASS
43.3	35.3858	-82.7881	B2=20.1, I=17.5, R1=18.6, R2=18.1	USNO-B1
43.4	35.3856	-82.7881	h=15.6, j=16.7, k=14.8	2MASS
57.8	35.5136	-82.8066	B2=21.7, I=18.3, R2=20.6	USNO-B1
59.7	35.3574	-82.7979	h=14.7, j=15.4, k=14.5	2MASS
59.7	35.3572	-82.7978	B2=19.4, I=16.8, R1=17.0, R2=17.1	USNO-B1
61.2	35.3541	-82.7844	B2=22.0, I=18.4	USNO-B1
69.2	35.4844	-82.8104	B2=20.7, I=18.5, R1=19.6, R2=19.5	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 102 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.