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Swift Trigger: 879909

Presumed name: GRB 181228A

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

BAT	03h 19m 19.44s, +13° 11′ 42.0″
position:	(49.831, 13.195 ± 180″)
XRT	03h 19m 14.83s, +13° 12′ 06.1″
position:	(49.8118, 13.2017 ± 2.1″)
UVOT	No position available.
Galactic NHI:	1.52×100 cm-2
Galactic E(B-V):	0.528 mag

Best RA:	03h 19m 14.83s	= 49.8118 d
Best Dec:	+13° 12′ 06.1″	= 13.2017 d
Gal Lat:	-36.04
Gal Long:	169.3
Sun angle:	134.67°, -8.9 hr East of Sun

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) : 03 19 14.85 (13.2018)
  • Dec (J2000): +13 12 06.4 ( 13.20201)
  • Error (90%): 2.0
  • Counts in Source: 601

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
1.8′′	49.81213	13.20208		GCN #23574	GRB 181228A: Enhanced Swift-XRT position
3.2′′	49.81271	13.20186		GCN #23575	GRB 181228A: REM NIR detection
4.1′′	49.81167	13.20056		GCN #23578	GRB 181228A: Global MASTER-Net OT detection
4.1′′	49.81167	13.20056		GCN #23576	GRB 181228A: Global MASTER Net OT detection
6.1′′	49.81146	13.20003		GCN #23570	GRB 181228A: Swift detection of a burst
76.8′′	49.83100	13.21200		GCN #23583	GRB 181228A: 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
9.6	49.8123	13.2043		B=20.6, R=19.9	APM-N
16.1	49.8075	13.2036			NED
25.0	49.8083	13.2078			NED
31.3	49.8150	13.2097			NED
32.2	49.8125	13.2106			NED
51.1	49.8037	13.2136			NED
51.5	49.8221	13.2119			NED
55.0	49.8275	13.2022		B=20.6, R=19.8	APM-N
56.3	49.7958	13.2050			NED
56.5	49.7961	13.2052		B1=17.9, B2=18.1, I=16.1, R1=16.9, R2=16.7	USNO-B1

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

There are 68 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
16.1	49.8076	13.2035	h=15.5, j=15.9, k=15.3	2MASS
16.2	49.8076	13.2036	B1=18.0, B2=18.6, I=17.0, R1=17.8, R2=17.3	USNO-B1
19.1	49.8066	13.2033	B1=19.2, R1=19.7	USNO-B1
25.0	49.8085	13.2079	h=15.7, j=16.3, k=15.6	2MASS
25.4	49.8084	13.2079	B1=20.6, B2=20.7, I=17.9, R1=18.7, R2=19.1	USNO-B1
31.3	49.8149	13.2098	h=14.9, j=15.7, k=14.7	2MASS
31.6	49.8149	13.2099	B2=21.8, I=17.6, R1=19.4, R2=19.7	USNO-B1
32.2	49.8125	13.2106	h=15.6, j=16.4, k=15.6	2MASS
32.4	49.8125	13.2107	B1=20.0, B2=19.9, I=17.9, R1=18.9, R2=18.9	USNO-B1
51.1	49.8038	13.2135	h=16.2, j=16.6, k=15.6	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 87 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.