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Swift Trigger: 535026

Presumed name: GRB 121001A

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

BAT	18h 24m 07.92s, -05° 40′ 01.2″
position:	(276.033, -5.667 ± 180″)
XRT	18h 24m 07.90s, -05° 39′ 55.8″
position:	(276.0329, -5.6655 ± 2.4″)
UVOT	No position available.
Galactic NHI:	4.53×1021 cm-2
Galactic E(B-V):	NED unavailable

Best RA:	18h 24m 07.90s	= 276.0329 d
Best Dec:	-05° 39′ 55.8″	= -5.6655 d
Gal Lat:	3.45
Gal Long:	24.77
Sun angle:	87.62°, -5.9 hr East of Sun

¹Sper #7 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 11 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 18 24 07.97 (-5.6655)
  • Dec (J2000): -05 39 55.8 ( -5.66486)
  • Error (90%): 2.3
  • Counts in Source: 340

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
0.8′′	276.03283	-5.66528		GCN #13835	Swift Trigger 535026: Optical decay confirmation with IAC80 and BOOTES-2/TELMA.
1.0′′	276.03267	-5.66536		GCN #13840	GRB 121001A: GROND Afterglow Confirmation
1.5′′	276.03250	-5.66536		GCN #13833	GRB 121001A: possible optical counterpart
2.6′′	276.03227	-5.66587		GCN #13837	GRB 121001A: Enhanced Swift-XRT Position
2.6′′	276.03227	-5.66587		GCN #13838	GRB 121001A: Swift-XRT refined Analysis
15.0′′	276.02900	-5.66700		GCN #13836	Swift Trigger 535026 is GRB 121001A: 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

* 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
8.9	276.0304	-5.6653		B=21.2, R2=20.3	SSS
12.5	276.0313	-5.6686		R1=19.2, R2=19.2	USNO-B1
12.5	276.0329	-5.6690		R1=18.4, R2=18.6	USNO-B1
18.0	276.0308	-5.6610		B=19.2, R2=16.0, i=17.9	SSS
19.8	276.0299	-5.6609		B=19.0, R2=16.0, i=16.0	SSS
20.4	276.0383	-5.6638		B=19.6, R2=18.1, i=17.4	SSS
24.5	276.0294	-5.6597		B=21.0	SSS
27.1	276.0399	-5.6682		B=21.4, R2=20.0	SSS
33.3	276.0368	-5.6571		B=19.0, R2=17.8, i=17.3	SSS
37.2	276.0430	-5.6633		B=21.6, R2=19.5, i=19.2	SSS

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

There are 368 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
6.4	276.0321	-5.6639	h=15.6, j=16.3, k=15.1	2MASS
7.5	276.0350	-5.6660	h=15.3, j=16.2, k=15.2	2MASS
10.3	276.0350	-5.6636	h=14.9, j=15.8, k=14.4	2MASS
12.2	276.0314	-5.6686	h=15.5, j=16.1, k=16.0	2MASS
12.4	276.0329	-5.6690	h=15.3, j=16.0, k=15.1	2MASS
14.3	276.0369	-5.6653	h=14.7, j=15.5, k=14.3	2MASS
15.2	276.0344	-5.6695	h=13.7, j=14.6, k=13.5	2MASS
15.8	276.0345	-5.6696	I=16.5, R1=17.5, R2=17.6	USNO-B1
16.6	276.0336	-5.6609	h=15.5, j=16.3, k=16.3	2MASS
17.4	276.0310	-5.6610	h=13.6, j=14.2, k=13.4	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 1229 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.