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Swift Trigger: 922808

Presumed name: GRB 190828B

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

BAT	16h 47m 16.32s, +27° 14′ 13.2″
position:	(251.818, +27.237 ± 180″)
XRT	16h 47m 19.54s, +27° 16′ 49.8″
position:	(251.8314, 27.2805 ± 2.0″)
UVOT	No position available.
Galactic NHI:	5.21×100 cm-2
Galactic E(B-V):	0.086 mag

Best RA:	16h 47m 19.54s	= 251.8314 d
Best Dec:	+27° 16′ 49.8″	= 27.2805 d
Gal Lat:	38.08
Gal Long:	47.58
Sun angle:	90.17°, -6.3 hr East of Sun

¹Sper #11 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 11 SPER messages, and 2 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 16 47 19.56 (27.2805)
  • Dec (J2000): +27 16 49.9 ( 27.28138)
  • Error (90%): 2.0
  • Counts in Source: 968
• • Object 2
  • RA (J2000) : 16 47 18.91 ( 251.82879)
  • Dec (J2000): +27 14 20.3 ( 27.23897)
  • Error (90%): 4.663"
  • Counts in Source: 7

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
1.4′′	251.83167	27.28081		GCN #25517	GRB 190828B: Swift detection of a burst
1.5′′	251.83127	27.28091		GCN #25521	GRB 190828B: Enhanced Swift-XRT position
31.5′′	251.83800	27.28700		GCN #25534	GRB 190828B: Swift-BAT refined analysis
162.4′′	251.81800	27.23700		GCN #25518	Swift GRB190828.54 Global MASTER-Net observations report

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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
103.0	251.8582	27.2646	2XMMi J164725.9+271553	G=16.1859, H=12.901, J=13.561, K=12.713, g=18.005, i=15.471, r=16.551, u=20.558, z=14.900
116.8	251.8208	27.2494	NVSS J164717+271457
138.8	251.8252	27.2423	TYC 2066-691-1	B=11.90, G=11.3943, H=10.069, J=10.338, K=10.016, V=11.52
147.6	251.8408	27.3206	TYC 2066-179-1	B=13.08, G=11.7827, H=9.404, J=9.98, K=9.268, V=11.96
152.5	251.8262	27.2384	TYC 2066-215-1	B=11.30, G=9.9211, H=7.692, J=8.249, K=7.557, V=10.21, g=10.950, i=12.483, r=12.562, u=14.632, z=9.724
157.2	251.8229	27.2375	1RXS J164717.5+271415

There are 6 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table2	Observatory	Query
60.7	251.8444	27.2928	0.00956698 +/- 0.00224337	XMM-NEWTON
85.0	251.8115	27.2961	0.0170709 +/- 0.00255867	XMM-NEWTON
98.6	251.8006	27.2800	0.00762465 +/- 0.00231487	XMM-NEWTON
103.5	251.8583	27.2646	0.00886107 +/- 0.00192044	XMM-NEWTON
109.3	251.8006	27.2674	0.013322 +/- 0.00223286	XMM-NEWTON
152.5	251.8262	27.2384	0.428315 +/- 0.00824802	XMM-NEWTON
157.2	251.8229	27.2375	0.02228 +/- 0.007832	ROSAT
160.2	251.8224	27.2367	0 +/- 0	ROSAT
160.2	251.8224	27.2367	0.0236 +/- 0.0082	ROSAT
163.6	251.8245	27.3255	0.0141209 +/- 0.00265805	XMM-NEWTON

Queried the X-ray MASTER catalogue.

There are 10 X-ray sources within the position error. The full list is here.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*	Redshift		Catalogue	Query
17.3	251.8333	27.2761		Mag=20.0	NED
17.4	251.8334	27.2760		R=19.6, g=20.0, i=19.5, u=21.1, z=19.6	SDSS
17.9	251.8334	27.2758		B=20.9, R=18.9	APM-N
18.2	251.8333	27.2757		B=21.3, R=20.0	APM-N
19.1	251.8367	27.2831		Mag=21.3	NED
19.1	251.8366	27.2831		R=20.8, g=23.3, i=19.9, u=23.4, z=19.5	SDSS
24.1	251.8279	27.2744		Mag=22.6	NED
24.8	251.8238	27.2808		Mag=22.9	NED
24.9	251.8236	27.2808		R=21.6, g=22.6, i=20.2, u=23.2, z=20.1	SDSS
28.0	251.8379	27.2756		Mag=22.6	NED

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

There are 347 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
16.8	251.8336	27.2763	B1=20.7, B2=20.1, I=19.3, R2=19.3	USNO-B1
17.9	251.8331	27.2758	B2=20.4, R2=19.1	USNO-B1
18.4	251.8328	27.2755	B1=20.7, B2=20.1, R2=19.8	USNO-B1
19.3	251.8366	27.2832	R1=19.9, R2=20.0	USNO-B1
24.1	251.8279	27.2746	I=19.8, R=21.4, g=22.7, u=23.7, z=19.0	SDSS
28.0	251.8382	27.2756	I=22.3, R=22.0, g=22.5, u=23.4, z=22.2	SDSS
28.7	251.8274	27.2876	I=21.4, R=21.8, g=22.6, u=25.4, z=20.7	SDSS
30.0	251.8407	27.2793	I=24.0, R=25.5, g=22.5, u=23.0, z=22.2	SDSS
35.2	251.8204	27.2799	I=21.6, R=22.3, g=24.2, u=24.9, z=22.6	SDSS
43.7	251.8366	27.2918	I=19.7, R1=18.8	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 308 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.