Swift Trigger: 1227767

Presumed name: GRB 240511A

BAT	22^h 26^m 39.36^s, +08° 30′ 50.4″
position:	(336.664, 8.514 ± 180″)
XRT	22^h 26^m 42.19^s, +08° 30′ 46.7″
position:	(336.67578, 8.51297 ± 1.9″)
UVOT	No position available.
Galactic N_HI:	6.20×10²⁰ cm^-2
Galactic E(B-V):	0.101 mag

Best RA:	22^h 26^m 42.19^s	= 336.67578 d
Best Dec:	+08° 30′ 46.7″	= 8.51297 d

Gal Lat:	-40.01
Gal Long:	73.26

Sun angle:	70.43°, 4.8 hr West

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.

XRT SPER data

SPER results page for this trigger.

There are 9 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 22 26 42.19 (8.51317)
- Dec (J2000): +08 30 47.4 ( 8.51366)
- Error (90%): 1.9
- Counts in Source: 166

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query

Catalogue Searches. Searched 200′ 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
108.8	336.7059	8.5078	TYC 1138-1003-1	B=12.67, G=10.897864, H=8.685, J=9.269, K=8.543, V=11.25

* 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*		Catalogue
10.3	336.6775	8.5108		NED
16.9	336.6779	8.5172	B1=19.9, B2=19.6	USNO-B1
28.7	336.6704	8.5189		NED
31.0	336.6842	8.5156		NED
31.5	336.6719	8.5208	R1=20.0, R2=17.6	USNO-B1
34.5	336.6667	8.5092		NED
35.7	336.6658	8.5144		NED
45.1	336.6637	8.5092		NED
50.1	336.6779	8.5267		NED
52.2	336.6617	8.5172		NED

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

There are 163 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
9.6	336.6772	8.5107	B2=20.3, I=18.1, R2=17.6	USNO-B1
32.5	336.6690	8.5190	B1=20.0, B2=20.5, R1=19.8, R2=17.6	USNO-B1
50.1	336.6780	8.5267	h=16.4, j=16.7, k=15.7	2MASS
50.3	336.6780	8.5268	I=17.7, R1=19.9, R2=17.6	USNO-B1
59.8	336.6593	8.5160	B1=20.1, B2=20.3, R2=17.4	USNO-B1
65.5	336.6743	8.4948	B2=19.9, I=18.5, R1=19.7, R2=17.6	USNO-B1
72.2	336.6918	8.5253	B1=17.2, B2=18.0, I=16.7, R1=17.1, R2=16.1	USNO-B1
76.7	336.6969	8.5170	B1=20.1, B2=20.4, I=15.9, R1=18.0, R2=16.6	USNO-B1
76.9	336.6970	8.5171	h=14.2, j=14.9, k=14.1	2MASS
77.5	336.6971	8.5088	B2=20.5, I=18.3, R1=19.8, R2=17.5	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 92 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.