Swift Trigger: 419797

Presumed name: GRB 100418A

BAT	17^h 05^m 30.24^s, +11° 27′ 50.4″
position:	(256.376, +11.464 ± 180″)
XRT	17^h 05^m 27.26^s, +11° 27′ 41.0″
position:	(256.3636, 11.4614 ± 2.8″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.072 mag

Best RA:	17^h 05^m 27.26^s	= 256.3636 d
Best Dec:	+11° 27′ 41.0″	= 11.4614 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
1.5′′	256.36327	11.46114	GCN #10614	GRB 100418A: Enhanced Swift-XRT position
1.7′′	256.36350	11.46186	GCN #10612	GRB 100418A: Swift detection of a burst with a possible optical afterglow
2.9′′	256.36287	11.46175	GCN #10617	GRB 100418A: GROND observations; missing author list added
2.9′′	256.36287	11.46175	GCN #10616	GRB 100418A: GROND observations
3.0′′	256.36283	11.46175	GCN #10634	GRB 100418A: optical observations
14.8′′	256.36008	11.45914	GCN #10665	GRB 100418A: ROVOR optical measurements at 35 hours
14.8′′	256.36008	11.45914	GCN #10694	GRB 100418A: Terskol optical observations
14.8′′	256.36008	11.45914	GCN #10783	GRB 100418A: CrAO optical observations
14.8′′	256.36008	11.45914	GCN #10821	GRB 100418A: Maidanak optical observations
14.8′′	256.36008	11.45914	GCN #10664	GRB 100418A: ROVOR optical measurements at 35 hours
14.8′′	256.36008	11.45914	GCN #10883	GRB 100418A: late time optical observations

There are 18 matches in total. See the full table for details.

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
14.8	256.3601	11.4591	USNO-B1.0 1014-00271368	B=18.7, R=17.3

* 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
2.9	256.3629	11.4617		NED
5.3	256.3651	11.4615	B=19.4, R=18.3	APM-N
20.1	256.3617	11.4666	B=20.6, R=19.6	APM-N
28.4	256.3715	11.4628	B=18.7, R=15.4	APM-N
29.6	256.3694	11.4674	B=19.5, R=16.9	APM-N
34.6	256.3650	11.4519		NED
43.6	256.3676	11.4729	B1=20.4, B2=21.4, R2=19.6	USNO-B1
46.2	256.3620	11.4741	B2=21.0, I=17.8, R1=18.6, R2=18.7	USNO-B1
46.5	256.3619	11.4742	B=21.2, R=19.0	APM-N
59.7	256.3734	11.4749	B1=19.7, B2=19.5, I=18.2, R1=18.2, R2=18.5	USNO-B1

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

There are 89 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
5.1	256.3651	11.4614	B1=19.7, B2=19.2, I=17.9, R1=17.7, R2=18.3	USNO-B1
14.8	256.3601	11.4591	B1=19.1, B2=18.7, I=17.2, R1=17.0, R2=17.3	USNO-B1
15.1	256.3601	11.4591	h=16.0, j=16.4, k=16.1	2MASS
19.6	256.3617	11.4665	B1=20.5, B2=20.2, I=18.4, R1=19.1, R2=18.9	USNO-B1
26.7	256.3711	11.4624	h=14.5, j=15.1, k=14.3	2MASS
28.6	256.3716	11.4628	B1=19.3, B2=17.8, I=14.9, R1=15.0, R2=15.5	USNO-B1
29.3	256.3691	11.4675	h=15.1, j=15.8, k=15.0	2MASS
29.3	256.3696	11.4670	B1=20.0, B2=19.2, I=17.4, R2=17.2	USNO-B1
29.5	256.3693	11.4674	B1=19.8, B2=19.1, I=16.5, R1=16.3, R2=16.8	USNO-B1
31.0	256.3722	11.4630	h=14.8, j=15.5, k=14.8	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 198 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.