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Home > GRB region information > 945521

Swift Trigger: 945521

Presumed name: GRB 191221B

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

BAT	10h 19m 19.68s, -38° 08′ 27.6″
position:	(154.832, -38.141 ± 180″)
XRT	10h 19m 18.86s, -38° 09′ 28.4″
position:	(154.8286, -38.1579 ± 6.8″)
UVOT	10h 19m 19.22s, -38° 09′ 27.4″
position:	(154.8301, -38.1576 ± 0.6″)
Galactic NHI:	6.50×100 cm-2
Galactic E(B-V):	0.089 mag

Best RA:	10h 19m 19.22s	= 154.8301 d
Best Dec:	-38° 09′ 27.4″	= -38.1576 d
Gal Lat:	15.64
Gal Long:	272.73
Sun angle:	93.09°, 7.6 hr West

¹Sper #0 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.

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

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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
0.3′′	154.83017	-38.15768		GCN #26574	GRB 191221B: Swift/UVOT Detection
0.5′′	154.82992	-38.15759		GCN #26540	GRB 191221B: Enhanced Swift-XRT position
0.7′′	154.83017	-38.15778		GCN #26537	GRB 191221B: MASTER OT detection
4.4′′	154.82860	-38.15790		GCN #26534	GRB 191221B: Swift detection of a burst and a very bright optical candidate
20.3′′	154.83042	-38.15197		GCN #26562	GRB 191221B: Swift-BAT refined analysis

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Catalogue Searches. Searched 3.33′ around UVOT 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
124.3	154.8667	-38.1767	LEDA 612086

* 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
6.6	154.8304	-38.1594			NED
7.7	154.8307	-38.1597		B=18.6, R2=17.7, i=16.9	SSS
9.1	154.8308	-38.1600			NED
10.8	154.8313	-38.1604		B=19.1, R2=17.9, i=17.2	SSS
12.2	154.8313	-38.1608			NED
20.2	154.8275	-38.1525			NED
25.6	154.8271	-38.1644			NED
34.2	154.8307	-38.1671		B=22.4	SSS
36.3	154.8419	-38.1615		B=22.0, R2=19.5, i=19.0	SSS
36.7	154.8421	-38.1617			NED

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

There are 335 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
6.6	154.8304	-38.1594	h=15.5, j=16.0, k=15.4	2MASS
8.2	154.8308	-38.1598	B2=16.8, I=16.2, R1=16.3, R2=15.9	USNO-B1
10.7	154.8313	-38.1604	B2=16.9, I=16.6, R1=16.5	USNO-B1
12.2	154.8315	-38.1608	h=16.1, j=16.5, k=15.9	2MASS
19.8	154.8275	-38.1525	B2=19.4, I=16.1, R1=17.4, R2=17.9	USNO-B1
20.2	154.8274	-38.1524	h=14.0, j=14.6, k=13.7	2MASS
22.5	154.8245	-38.1531	B2=19.4, I=18.2, R1=19.1, R2=18.4	USNO-B1
35.5	154.8241	-38.1662	B2=21.4, I=19.2, R1=20.1, R2=17.9	USNO-B1
37.5	154.8423	-38.1617	B2=15.2, I=18.4, R1=19.1, R2=18.4	USNO-B1
41.3	154.8190	-38.1501	B2=21.0, I=19.1, R1=20.3, R2=17.8	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 295 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.