Skip banner and navigation tools.

Home > GRB region information > 359530

Swift Trigger: 359530

Presumed name: GRB 090809

Back to trigger list.

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

BAT	21h 54m 34.80s, -00° 04′ 58.8″
position:	(328.645, -0.083 ± 180″)
XRT	21h 54m 42.72s, -00° 05′ 01.7″
position:	(328.6780, -0.0838 ± 3.4″)
UVOT	No position available.
Galactic NHI:	0.00×100 cm-2
Galactic E(B-V):	0.094 mag

Best RA:	21h 54m 42.72s	= 328.6780 d
Best Dec:	-00° 05′ 01.7″	= -0.0838 d
Gal Lat:
Gal Long:
Sun angle:	not found

---

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

---

Sun angle for this burst.

UVOT data

Blink images with DSS (link via GSFC)

---

XRT SPER data

SPER results page for this trigger.

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

---

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query
3.2′′	328.67771	-0.08464		GCN #9754	GRB 090809: Swift detection of a burst with a possible optical counterpart
6.8′′	328.67987	-0.08386		GCN #9755	GRB 090809: afterglow confirmation at the NOT
7.1′′	328.67996	-0.08384		GCN #9758	GRB090809: Swift/UVOT observations
7.6′′	328.68012	-0.08366		GCN #9757	GRB 090809: Enhanced Swift-XRT position
46.9′′	328.66500	-0.08300		GCN #9756	GRB 090809: Swift-BAT refined analysis

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

---

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
54.8	328.6790	-0.0990	2MASS J21544295-0005563	B=18.2, H=15.417, J=16.127, K=15.509, R=17.3
173.5	328.6548	-0.0415	SDSS J215437.15-000229.4	g=20.551, i=20.146, r=20.415, u=20.786, z=20.150

* 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
6.8	328.6800	-0.0839			NED
8.4	328.6796	-0.0856		Mag=22.3	NED
21.4	328.6721	-0.0822		Mag=24.1	NED
26.1	328.6852	-0.0838		R=21.2, g=22.4, i=20.9, u=23.1, z=20.4	SDSS
26.1	328.6850	-0.0839		Mag=22.5	NED
26.2	328.6764	-0.0909		R=23.0, g=24.9, i=21.4, u=24.2, z=20.9	SDSS
30.9	328.6692	-0.0833		Mag=20.1	NED
31.7	328.6692	-0.0825		Mag=23.2	NED
32.4	328.6712	-0.0779		R=22.9, g=25.3, i=21.6, u=23.3, z=21.1	SDSS
32.4	328.6847	-0.0778		R=20.8, g=21.8, i=19.2, u=20.0, z=19.7	SDSS

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

There are 408 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
8.4	328.6795	-0.0856	I=20.1, R=20.9, g=22.2, u=23.7, z=19.5	SDSS
14.0	328.6809	-0.0864	B2=21.1, R1=20.2	USNO-B1
21.3	328.6723	-0.0822	I=22.1, R=22.6, g=24.2, u=25.1, z=21.1	SDSS
24.9	328.6848	-0.0824	B2=21.3, R1=20.1, R2=20.3	USNO-B1
30.9	328.6694	-0.0834	h=15.0, j=15.7, k=14.9	2MASS
30.9	328.6694	-0.0834	I=17.6, R=18.6, g=20.1, u=22.7, z=17.0	SDSS
31.1	328.6694	-0.0833	B2=20.8, I=17.3, R1=18.5, R2=18.3	USNO-B1
31.7	328.6693	-0.0825	I=20.4, R=21.4, g=23.2, u=24.7, z=20.1	SDSS
37.4	328.6820	-0.0742	I=13.3, R=13.4, g=14.1, u=15.4, z=13.4	SDSS
37.5	328.6821	-0.0742	h=11.8, j=12.2, k=11.8	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 246 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.