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Home > GRB region information > 743086

Swift Trigger: 743086

Presumed name: GRB 170318B

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

BAT	18h 57m 06.96s, +06° 16′ 10.2″
position:	(284.279, 6.2695 ± 180″)
XRT	18h 57m 13.46s, +06° 17′ 57.8″
position:	(284.3061, 6.2994 ± 2.2″)
UVOT	No position available.
Galactic NHI:	1.21×100 cm-2
Galactic E(B-V):	5.183 mag

Best RA:	18h 57m 13.46s	= 284.3061 d
Best Dec:	+06° 17′ 57.8″	= 6.2994 d
Gal Lat:	1.59
Gal Long:	39.2
Sun angle:	74.27°, 4.94 hr West

¹Sper #6 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

No UVOT images are currently available.

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XRT SPER data

SPER results page for this trigger.

There are 8 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 18 57 13.48 (6.2994)
  • Dec (J2000): +06 17 57.9 ( 6.29847)
  • Error (90%): 2.1
  • Counts in Source: 161

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
0.4′′	284.30620	6.29940		GCN #20909	GRB 170318B: Prompt enhanced Swift-XRT position
0.5′′	284.30613	6.29925		GCN #20910	GRB 170318B: Enhanced Swift-XRT position
3.8′′	284.30604	6.29833		GCN #20908	GRB 170318B: Swift detection of a burst

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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
109.9	284.2755	6.3016	IRAS 18546+0614	H=13.801, J=14.804, K=13.307
167.0	284.3504	6.2849	TYC 461-356-1	B=12.80, H=10.086, J=10.397, K=9.954, V=12.04

* 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
28.5	284.3133	6.2960		I=17.2, R2=19.2	USNO-B1
34.2	284.3018	6.2909		R1=18.4, R2=19.2	USNO-B1
37.6	284.2974	6.3052		B2=21.0, I=15.1, R1=17.6, R2=16.7	USNO-B1
51.0	284.3166	6.2899		B1=21.1, I=17.1, R2=20.5	USNO-B1
53.8	284.2927	6.2926		I=16.4, R2=19.7	USNO-B1
54.0	284.2994	6.2860		I=17.3, R1=18.4, R2=19.3	USNO-B1
62.7	284.3216	6.2914		I=16.6, R2=19.3	USNO-B1
66.1	284.2936	6.3129		I=17.0, R2=19.7	USNO-B1
71.0	284.2905	6.2872		I=16.6, R2=18.7	USNO-B1
75.0	284.3266	6.2950		B2=20.8, I=16.8, R1=18.4, R2=18.0	USNO-B1

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

There are 81 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
7.9	284.3056	6.2973	h=15.0, j=16.0, k=14.6	2MASS
8.8	284.3037	6.2987	h=14.6, j=15.9, k=14.1	2MASS
14.5	284.3066	6.3034	h=13.3, j=14.4, k=13.0	2MASS
14.7	284.3100	6.3007	h=13.4, j=14.9, k=12.7	2MASS
15.0	284.3065	6.3035	B1=19.2, B2=18.0, I=15.2, R1=16.4, R2=15.7	USNO-B1
17.4	284.3029	6.3030	h=15.9, j=16.5, k=14.8	2MASS
20.1	284.3069	6.2939	I=16.4, R1=18.4, R2=18.1	USNO-B1
20.2	284.3069	6.2938	h=12.5, j=13.8, k=12.0	2MASS
20.4	284.3115	6.2976	h=14.8, j=16.0, k=14.3	2MASS
21.8	284.3006	6.2968	h=15.0, j=16.6, k=14.3	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 934 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.