Swift Trigger: 419932

Presumed name: GRB 100420A

BAT	19 44 30.5 +55 47 34.8
position:	(296.1270, 55.7930 +/-180")
XRT	19 44 30.5 +55 46 10.6
position:	(296.1271, 55.7696 +/-2.5")
UVOT
position:	(Unknown)
Galactic Nh:	cm^-2
Galactic E(B-V):	0.112 mag

Best RA:	19 44 30.5	= 296.1271 d
Best Dec:	+55 46 10.6	= 55.7696 d

Gal Lat:
Gal Long:

Sun angle:	not found

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

DSS - Blue DSS FITS file

2MASS - J 2MASS FITS file

UVOT data

unknown image
No trigger time found!
Exposure: 0 s

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Source	Misc
0.8′′	296.12737	55.76944	GCN #10706	GRB 100420A: Gemini discovery of infrared afterglow
1.6′′	296.12761	55.76926	GCN #10638	GRB 100420A: Enhanced Swift-XRT position
1.6′′	296.12763	55.76925	GCN #10638	GRB 100420A: Enhanced Swift-XRT position
3.0′′	296.12646	55.76886	GCN #10628	GRB 100420A: Swift detection of a burst
3.0′′	296.12646	55.76885	GCN #10628	GRB 100420A: Swift detection of a burst
82.5′′	296.12917	55.79250	GCN #10628	GRB 100420A: Swift detection of a burst
84.2′′	296.12700	55.79300	GCN #10628	GRB 100420A: Swift detection of a burst
91.7′′	296.09000	55.75500	GCN #10660	GRB 100420A: Swift-BAT refined analysis
92.0′′	296.08958	55.75519	GCN #10660	GRB 100420A: 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		Query
63.3	296.0958	55.7696	TYC 3938-551-1	B=10.51, H=7.145, J=7.683, K=7.037, V=9.51

* 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
1.6	296.1275	55.7692		NED
19.8	296.1185	55.7671	B2=21.5, R1=19.8, R2=19.6	USNO-B1
38.0	296.1423	55.7634	I=18.1, R2=19.7	USNO-B1
38.7	296.1080	55.7700	B2=20.2, I=17.9, R2=17.4	USNO-B1
47.8	296.1035	55.7689	B2=17.9, I=15.2, R2=15.0	USNO-B1
81.1	296.1261	55.7471	B1=15.9, B2=16.4, I=13.8, R1=14.4, R2=14.7	USNO-B1
85.8	296.0892	55.7803	B1=20.2, I=18.2, R2=19.7	USNO-B1
86.1	296.1420	55.7920	B=17.2, R=15.7	APM-N
91.6	296.1447	55.7461	B1=20.2, B2=20.4, I=17.6, R1=18.7, R2=18.2	USNO-B1
94.3	296.1263	55.7958	B1=14.8, B2=15.2, I=12.6, R1=13.4, R2=13.5	USNO-B1

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

There are 48 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
8.6	296.1229	55.7697	B2=21.2, I=18.3, R2=18.5	USNO-B1
23.4	296.1189	55.7742	B1=20.2, B2=20.6, I=18.2, R1=19.5, R2=19.4	USNO-B1
24.0	296.1207	55.7640	B1=17.7, B2=17.9, I=15.1, R1=15.8, R2=15.9	USNO-B1
24.0	296.1208	55.7640	h=14.8, j=15.2, k=14.6	2MASS
24.1	296.1239	55.7632	B2=20.9, I=17.4, R1=19.1, R2=18.4	USNO-B1
26.9	296.1226	55.7626	B1=18.1, B2=18.3, I=15.4, R1=16.1, R2=16.1	USNO-B1
27.8	296.1226	55.7623	h=15.0, j=15.6, k=15.2	2MASS
32.3	296.1333	55.7779	h=14.6, j=15.1, k=14.5	2MASS
32.6	296.1333	55.7780	B1=18.1, B2=18.3, I=15.4, R1=16.2, R2=16.1	USNO-B1
34.1	296.1102	55.7698	B2=20.2, I=18.1	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 293 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.