Swift Trigger: 1325580

Presumed name: GRB 250617B

BAT	22^h 11^m 36.48^s, +32° 43′ 37.2″
position:	(332.902, +32.727 ± 180″)
XRT	22^h 11^m 35.20^s, +32° 43′ 57.4″
position:	(332.89665, 32.73261 ± 1.9″)
UVOT	No position available.
Galactic N_HI:	7.21×10²⁰ cm^-2
Galactic E(B-V):	0.093 mag

Best RA:	22^h 11^m 35.20^s	= 332.89665 d
Best Dec:	+32° 43′ 57.4″	= 32.73261 d

Gal Lat:	-19.1
Gal Long:	88.06

Sun angle:	95.24°, 7.6 hr West

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.

XRT SPER data

SPER results page for this trigger.

There are 11 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 22 11 35.19 (32.73261)
- Dec (J2000): +32 43 57.4 ( 32.73231)
- Error (90%): 1.9
- Counts in Source: 509

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query

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
153.4	332.9083	32.7741	UCAC2 43369321	G=12.302798, H=10.38, J=10.859, K=10.317, R=12.13
166.7	332.9246	32.7725	TYC 2724-453-1	B=12.00, G=11.260534, H=9.835, J=10.153, K=9.751, R=11.11, V=11.47
181.5	332.9188	32.7795	Gaia DR3 1899155579613476992	G=19.990978
193.3	332.8879	32.7858	1RXS J221133.1+324709
198.6	332.9488	32.6991	TYC 2724-539-1	B=11.79, G=11.042147, H=9.546, J=9.882, K=9.478, V=11.15

There are 5 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table²
192.1	332.8877	32.7854	0 +/- 0	ROSAT
192.1	332.8877	32.7854	0.0766 +/- 0.0133	ROSAT
193.4	332.8879	32.7858	0.08 +/- 0.01	ROSAT
193.9	332.8879	32.7860	0.07959 +/- 0.0135	ROSAT

Queried the X-ray MASTER catalogue.

There are 4 X-ray sources within the position error. The full list is here.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*		Catalogue
13.9	332.8924	32.7310	B2=20.5, I=18.8, R2=19.8	USNO-B1
15.1	332.8982	32.7286	B1=19.0, B2=18.3, I=17.3, R1=18.2, R2=17.8	USNO-B1
15.2	332.8979	32.7286		NED
18.0	332.8908	32.7342		NED
19.4	332.8903	32.7329	I=18.7, R1=19.4, R2=20.1	USNO-B1
19.5	332.8943	32.7376	B=21.4, R=18.9	APM-N
19.6	332.8942	32.7375		NED
21.1	332.9029	32.7350		NED
28.9	332.8871	32.7317		NED
29.2	332.9042	32.7275		NED

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

There are 339 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
19.2	332.8907	32.7344	B1=20.3, B2=20.3, R1=18.6, R2=18.4	USNO-B1
19.5	332.8941	32.7376	B1=20.1, B2=20.1, I=18.0, R1=18.5, R2=18.7	USNO-B1
20.5	332.8904	32.7348	B2=20.6, I=18.2, R2=19.7	USNO-B1
21.6	332.9031	32.7351	B1=20.4, B2=20.6, I=18.3, R1=19.1, R2=19.4	USNO-B1
29.2	332.9041	32.7275	B1=18.9, B2=18.7, I=17.7, R1=18.1, R2=17.8	USNO-B1
29.7	332.9043	32.7274	h=16.8, j=16.5, k=15.8	2MASS
39.5	332.8836	32.7332	h=16.2, j=16.2, k=15.5	2MASS
39.6	332.8836	32.7333	B2=20.9, I=18.0, R1=18.9, R2=19.6	USNO-B1
40.9	332.8853	32.7388	B2=20.2, I=19.0, R2=20.1	USNO-B1
41.2	332.9099	32.7300	h=13.7, j=14.0, k=13.6	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 269 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.