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Swift Trigger: 1013852

Presumed name: GRB 201221A

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

BAT	14h 17m 54.48s, -45° 24′ 39.6″
position:	(214.477, -45.411 ± 180″)
XRT	14h 17m 55.25s, -45° 25′ 00.1″
position:	(214.4802, -45.4167 ± 2.4″)
UVOT	No position available.
Galactic NHI:	6.60×100 cm-2
Galactic E(B-V):	0.113 mag

Best RA:	14h 17m 55.25s	= 214.4802 d
Best Dec:	-45° 25′ 00.1″	= -45.4167 d
Gal Lat:	14.83
Gal Long:	318.45
Sun angle:	49.31°, 3.7 hr West

¹Sper #4 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 7 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 14 17 55.28 (-45.4165)
  • Dec (J2000): -45 24 59.3 ( -45.41587)
  • Error (90%): 2.3
  • Counts in Source: 107

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
0.7′′	214.48046	-45.41664		GCN #29097	GRB 201221A: Prompt enhanced Swift-XRT position
1.8′′	214.48016	-45.41620		GCN #29105	GRB 201221A: Enhanced Swift-XRT position
2.1′′	214.48025	-45.41611		GCN #29100	GRB 201221A: VLT/X-shooter afterglow discovery and spectroscopic redshift z = 5.7
4.1′′	214.47885	-45.41606		GCN #29096	GRB 201221A: Swift detection of a burst
43.3′′	214.48800	-45.40600		GCN #29116	GRB 201221A: Swift-BAT refined analysis

There are 11 matches in total. See the full table for details.

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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
13.2	214.4815	-45.4131		B2=20.6, R1=16.1, R2=19.0	USNO-B1
13.3	214.4854	-45.4174		B=22.1, R2=20.2	SSS
16.4	214.4795	-45.4122		I=18.4, R1=19.5	USNO-B1
18.1	214.4857	-45.4199		B=21.5	SSS
20.4	214.4882	-45.4160		B=22.0	SSS
21.0	214.4751	-45.4121		I=18.7, R1=20.0	USNO-B1
21.1	214.4883	-45.4161			NED
22.3	214.4850	-45.4219			NED
27.7	214.4787	-45.4242			NED
28.4	214.4900	-45.4131			NED

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

There are 524 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
6.0	214.4814	-45.4181	B2=20.9, I=18.8, R1=19.3, R2=20.0	USNO-B1
16.0	214.4798	-45.4123	B2=19.8, I=18.3, R1=19.0, R2=19.0	USNO-B1
22.3	214.4850	-45.4219	h=14.6, j=15.1, k=14.4	2MASS
22.5	214.4852	-45.4218	B2=17.3, I=16.0, R1=16.4, R2=16.1	USNO-B1
27.5	214.4788	-45.4243	B2=16.9, I=15.7, R1=15.9, R2=15.9	USNO-B1
27.7	214.4787	-45.4243	h=14.7, j=15.1, k=14.6	2MASS
28.4	214.4901	-45.4129	h=14.9, j=15.3, k=14.9	2MASS
28.9	214.4903	-45.4129	B2=17.1, I=15.9, R1=16.1, R2=15.9	USNO-B1
32.4	214.4768	-45.4080	B2=21.4, I=18.5, R1=19.8	USNO-B1
36.9	214.4656	-45.4165	B2=18.5, I=17.8, R1=17.7, R2=17.8	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 471 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.