Swift Trigger: 754322

Presumed name: GRB 170524A

BAT	21^h 17^m 49.44^s, +48° 35′ 13.2″
position:	(319.456, +48.587 ± 180″)
XRT	21^h 17^m 56.86^s, +48° 36′ 23.4″
position:	(319.4869, 48.6065 ± 4.1″)
UVOT	No position available.
Galactic N_HI:	7.39×10⁰ cm^-2
Galactic E(B-V):	2.536 mag

Best RA:	21^h 17^m 56.86^s	= 319.4869 d
Best Dec:	+48° 36′ 23.4″	= 48.6065 d

Gal Lat:	-0.52
Gal Long:	90.88

Sun angle:	82.10°, 6.8 hr West

¹Sper #4 auto processing.

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

white image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

There are 9 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 21 17 56.86 (48.6067)
- Dec (J2000): +48 36 24.1 ( 48.60705)
- Error (90%): 4.1
- Counts in Source: 8

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	Source	Misc
0.0′′	319.48690	48.60650	GCN #21135	GRB 170524A: Swift detection of a burst (or possible new SGR)
1.7′′	319.48642	48.60686	GCN #21136	GRB 170524A: Enhanced Swift-XRT position
7.1′′	319.48458	48.60775	GCN #21145	GRB 170524A: TSHAO and CrAO optical observations
11.4′′	319.48833	48.60347	GCN #21143	GRB 170524A: Swift-BAT refined analysis

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
36.4	319.4993	48.6124	TYC 3593-4099-1	B=12.90, H=10.804, J=11.067, K=10.744, V=12.66
130.1	319.4595	48.5752	TYC 3593-4312-1	B=12.68, H=7.834, J=8.277, K=7.593, V=11.43
171.8	319.4176	48.5931	GPSR 090.839-0.493

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

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*		Catalogue
10.0	319.4860	48.6038	B1=18.1, B2=18.1, I=15.9, R1=16.5, R2=16.7	USNO-B1
11.4	319.4883	48.6095	B1=16.7, B2=16.7, I=14.5, R1=14.8, R2=15.1	USNO-B1
20.2	319.4799	48.6097	B2=20.7, I=17.9, R2=18.8	USNO-B1
22.8	319.4879	48.6002	B1=19.9, B2=20.1, I=17.3, R1=18.4, R2=18.6	USNO-B1
29.5	319.4923	48.6139	B1=20.4, I=17.3	USNO-B1
29.7	319.4927	48.6138	B1=20.5, B2=19.8, I=17.4, R2=18.2	USNO-B1
35.7	319.5004	48.6108	B1=18.2, I=15.5	USNO-B1
37.5	319.4747	48.5999	I=18.1, R2=18.8	USNO-B1
43.8	319.4993	48.6155	B1=17.2, B2=16.5, I=14.7, R1=15.1, R2=14.8	USNO-B1
43.9	319.5054	48.6068	B1=18.0, I=14.8, R2=16.8	USNO-B1

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

There are 260 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
10.1	319.4859	48.6038	h=14.3, j=14.7, k=14.1	2MASS
11.2	319.4883	48.6095	h=13.1, j=13.6, k=13.0	2MASS
22.8	319.4869	48.6002	B2=20.3, I=16.2	USNO-B1
23.1	319.4860	48.6001	B1=19.2, B2=18.7, I=16.1, R1=16.8, R2=17.1	USNO-B1
23.5	319.4859	48.6000	h=14.3, j=14.7, k=14.0	2MASS
24.1	319.4943	48.6019	B1=20.5, B2=20.6, I=17.9, R1=18.5, R2=18.7	USNO-B1
24.6	319.4944	48.6018	h=15.6, j=16.0, k=15.1	2MASS
25.4	319.4972	48.6083	h=14.1, j=14.9, k=14.1	2MASS
25.4	319.4972	48.6084	B1=18.9, B2=18.8, I=16.3, R1=16.7, R2=17.0	USNO-B1
25.4	319.4766	48.6046	B2=20.8, I=18.1, R1=18.6, R2=18.7	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 687 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.