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Home > GRB region information > 609736

Swift Trigger: 609736

Presumed name: GRB 140817A

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

BAT	08h 29m 01.44s, +58° 11′ 20.4″
position:	(127.256, +58.189 ± 180″)
XRT	08h 29m 03.29s, +58° 11′ 22.9″
position:	(127.2637, 58.1897 ± 2.1″)
UVOT	No position available.
Galactic NHI:	5.48×100 cm-2
Galactic E(B-V):	0.126 mag

Best RA:	08h 29m 03.29s	= 127.2637 d
Best Dec:	+58° 11′ 22.9″	= 58.1897 d
Gal Lat:	35.54
Gal Long:	159.08
Sun angle:	46.97°, 1.3 hr West

¹Sper #4 auto processing.

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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.

There are 4 SPER messages, and 2 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 08 29 03.46 (58.1901)
  • Dec (J2000): +58 11 24.4 ( 58.18918)
  • Error (90%): 2.2
  • Counts in Source: 446
• • Object 2
  • RA (J2000) : 08 28 56.13 ( 127.23388)
  • Dec (J2000): +58 10 00.9 ( 58.16692)
  • Error (90%): 5.350"
  • Counts in Source: 8

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
1.2′′	127.26394	58.19002		GCN #16697	GRB 140817A: Enhanced Swift-XRT position
1.9′′	127.26337	58.19019		GCN #16710	GRB 140817A: Swift/UVOT Afterglow Detection
2.2′′	127.26460	58.19010		GCN #16696	GRB 140817A: Swift-XRT position
14.8′′	127.25600	58.18900		GCN #16695	GRB 140817A: Swift detection of a burst
37.7′′	127.24400	58.19100		GCN #16699	GRB 140817A: Swift-BAT refined analysis

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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
70.8	127.2274	58.1942	SDSSCGB 69811.4	g=21.837, i=22.187, r=21.008, u=23.046, z=21.672
76.8	127.2269	58.1985	SDSSCGB 69811.1	g=22.630, i=20.357, r=21.003, u=24.768, z=20.168
76.9	127.2254	58.1967	SDSSCGB 69811
77.6	127.2236	58.1940	SDSSCGB 69811.3	g=21.706, i=22.065, r=21.704, u=23.877, z=23.776
84.1	127.2234	58.1994	SDSSCGB 69811.2	g=23.846, i=19.980, r=21.117, u=22.996, z=19.016
98.2	127.2195	58.2039	MCG+10-12-141	B=16.0, H=11.267, J=12.085, K=11.018

There are 6 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
13.4	127.2567	58.1897		Mag=22.9	NED
13.5	127.2566	58.1897		R=21.7, g=22.9, i=21.3, u=25.6, z=21.1	SDSS
16.2	127.2652	58.1941		B=21.9, R=17.8	APM-N
19.5	127.2646	58.1950		Mag=21.3	NED
22.8	127.2647	58.1834		B=21.9, R=18.9	APM-N
25.0	127.2567	58.1839		Mag=20.4	NED
25.0	127.2567	58.1838		R=19.1, g=20.2, i=18.6, u=21.1, z=17.9	SDSS
25.3	127.2633	58.1967		Mag=22.6	NED
25.9	127.2561	58.1837		B2=19.8, I=18.1, R1=18.3	USNO-B1
26.1	127.2558	58.1837		B=21.6, R=18.6	APM-N

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

There are 318 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
19.2	127.2644	58.1950	h=16.2, j=16.6, k=15.5	2MASS
19.5	127.2645	58.1951	I=18.8, R=19.6, g=21.3, u=25.3, z=18.2	SDSS
19.6	127.2642	58.1951	B2=20.9, I=18.3, R1=19.1, R2=19.5	USNO-B1
20.5	127.2589	58.1846	I=22.1, R=22.6, g=23.4, u=25.5, z=21.5	SDSS
22.8	127.2557	58.1850	I=22.3, R=24.9, g=24.2, u=25.5, z=22.1	SDSS
24.8	127.2565	58.1839	B1=20.3, R2=18.3	USNO-B1
25.3	127.2635	58.1967	I=19.8, R=20.9, g=22.6, u=24.6, z=19.1	SDSS
36.9	127.2451	58.1866	I=15.4, R=15.6, g=16.3, u=17.9, z=15.2	SDSS
37.0	127.2451	58.1866	h=14.0, j=14.4, k=13.9	2MASS
37.1	127.2450	58.1867	B1=16.1, B2=16.3, I=14.6, R1=15.1, R2=15.4	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 199 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.