Swift Trigger: 276321

Presumed name: GRB 070420

BAT	08^h 05^m 00.72^s, -45° 33′ 39.6″
position:	(121.253, -45.561 ± 180″)
XRT	08^h 04^m 55.20^s, -45° 33′ 19.1″
position:	(121.2300, -45.5553 ± 4.7″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.524 mag

Best RA:	08^h 04^m 55.20^s	= 121.2300 d
Best Dec:	-45° 33′ 19.1″	= -45.5553 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.

Sun angle for this burst.

UVOT data

unknown image

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
0.9′′	121.22992	-45.55556	GCN #6334	GRB 070420: Faulkes Telescope South Observations
2.0′′	121.23021	-45.55583	GCN #6330	GRB 070420: Swift detection of a burst with optical afterglow
3.5′′	121.23008	-45.55628	GCN #6337	GRB 070420: Swift XRT refined analysis
19.1′′	121.22988	-45.55000	GCN #6336	GRB070420: Swift UVOT continuing observations
48.4′′	121.24458	-45.56406	GCN #6342	GRB 070420 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
1.0	121.2299	-45.5556	GRB 070420	B=20.01, U=20.39, V=17.16
3.4	121.2313	-45.5553	2MASS J08045552-4533188	B=19.3, H=16.123, J=16.481, R=17.6
6.4	121.2305	-45.5536	2MASS J08045532-4533127	B=18.9, J=16.481, R=17.6
13.4	121.2265	-45.5581	2MASS J08045436-4533291	B=16.6, H=13.513, J=13.982, K=13.415, R=15.6
87.2	121.2630	-45.5480	CD-45 3739	B=9.7
103.7	121.2710	-45.5534	2MASS J08050504-4533122	B=14.5, H=10.866, J=11.499, K=10.764, R=13.2
141.0	121.1992	-45.5226	CD-45 3731	B=10.94, H=6.458, J=7.105, K=6.267, V=9.53

There are 7 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
1.0	121.2300	-45.5556		NED
3.7	121.2314	-45.5552	B2=19.3, I=17.2, R1=18.1, R2=17.6	USNO-B1
27.6	121.2191	-45.5549	B2=21.3, R2=20.0	USNO-B1
37.8	121.2159	-45.5518	B2=17.8, I=16.6, R1=17.2, R2=16.7	USNO-B1
40.6	121.2155	-45.5602	B2=19.4, I=16.6, R1=17.8, R2=17.7	USNO-B1
43.3	121.2358	-45.5666	I=17.9, R1=18.7, R2=18.3	USNO-B1
43.8	121.2236	-45.5666	B2=18.9, I=17.0, R1=17.5, R2=17.4	USNO-B1
49.8	121.2197	-45.5671	B2=18.4, I=16.7, R1=17.1, R2=17.0	USNO-B1
51.4	121.2107	-45.5600	B2=18.9, I=17.3, R1=17.9, R2=17.7	USNO-B1
53.7	121.2278	-45.5701	B2=18.4, I=17.1, R1=17.7, R2=17.4	USNO-B1

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

There are 156 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
3.4	121.2313	-45.5552	h=16.1, j=16.5, k=16.2	2MASS
6.1	121.2304	-45.5536	B2=18.9, I=17.6, R1=18.0, R2=17.6	USNO-B1
6.4	121.2305	-45.5536	h=16.4, j=16.5, k=16.8	2MASS
13.4	121.2265	-45.5581	h=13.5, j=14.0, k=13.4	2MASS
13.5	121.2266	-45.5582	B2=16.6, I=14.6, R1=15.4, R2=15.6	USNO-B1
13.9	121.2348	-45.5572	h=15.5, j=15.9, k=15.1	2MASS
14.2	121.2350	-45.5571	B2=20.3, I=17.1, R1=17.8, R2=18.2	USNO-B1
17.7	121.2367	-45.5567	B2=20.1, I=17.6, R1=18.5, R2=18.3	USNO-B1
17.8	121.2368	-45.5566	h=15.8, j=16.6, k=15.4	2MASS
20.9	121.2246	-45.5509	I=18.3, R1=19.0, R2=19.2	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 568 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.