Swift Trigger: 1062150

Presumed name: GRB 210730A

BAT	09^h 58^m 22.08^s, +69° 42′ 18.0″
position:	(149.592, 69.705 ± 180″)
XRT	09^h 58^m 21.96^s, +69° 41′ 32.2″
position:	(149.59149, 69.69227 ± 8.2″)
UVOT	No position available.
Galactic N_HI:	4.85×10²⁰ cm^-2
Galactic E(B-V):	0.081 mag

Best RA:	09^h 58^m 21.96^s	= 149.59149 d
Best Dec:	+69° 41′ 32.2″	= 69.69227 d

Gal Lat:	40.73
Gal Long:	141.23

Sun angle:	52.65°, -1.4 hr East of Sun

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 1 SPER messages, and 1 objects have been found

- Object 1
- RA (J2000) : 09 58 21.96 ( 149.59149)
- Dec (J2000): +69 41 32.2 ( 69.69227)
- Error (90%): 8.187"
- Counts in Source: 20

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	Source	Misc
0.0′′	149.59149	69.69227	GCN #30548	GRB 210730A: Swift detection of a burst near M82
8.6′′	149.59150	69.68989	GCN #30560	GRB 210730A: TNG optical observations
10.6′′	149.59013	69.68936	GCN #30550	GRB 210730A: Enhanced Swift-XRT position
47.0′′	149.57000	69.70300	GCN #30554	GRB 210730A: Swift-BAT refined analysis

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
14.6	149.5888	69.6883	GPM 149.588800+69.688331	B=15.0, G=14.6641, H=13.031, J=13.379, K=12.937
52.1	149.6300	69.6868	[AVD90b] M 82 116	B=16.80, V=16.10
54.9	149.6157	69.7050	[AVD90b] M 82 130	B=19.66, V=18.91, r=17.92
74.7	149.5831	69.7128	[AVD90b] M 82 135	B=15.92, V=15.32, r=14.98
75.2	149.5337	69.6864	[AVD90b] M 82 115	B=21.20, V=20.12
90.1	149.6621	69.6872	NVSS J095838+694113
109.1	149.5280	69.6715	[AVD90b] M 82 107	B=22.00, V=21.34, r=21.66
111.2	149.5405	69.6670	Gaia DR2 1070562590425260544	G=19.9342
113.1	149.6070	69.6613	[AVD90b] M 82 99	B=19.97, r=18.51
124.2	149.6909	69.6931	[AVD90b] M 82 122	B=19.80, V=19.13

There are 24 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table²
70.2	149.6457	69.6871	0.00644808 +/- 0.00180204	XMM-NEWTON
70.4	149.6460	69.6874	0.0202481 +/- 0.00486192	XMM-NEWTON
70.5	149.6463	69.6877	0.00357287 +/- 0.00118962	XMM-NEWTON
70.9	149.6451	69.6858	0.0104111 +/- 0.00263514	XMM-NEWTON
71.5	149.6464	69.6866	0.0175607 +/- 0.00189229	XMM-NEWTON
71.5	149.6464	69.6867	0.0055976 +/- 0.00115283	XMM-NEWTON
71.9	149.6460	69.6859	0.0194846 +/- 0.00606857	XMM-NEWTON
73.8	149.6468	69.6851	0.00950367 +/- 0.00379712	XMM-NEWTON
75.4	149.6491	69.6861	0 +/- 0	CHANDRA
96.4	149.6437	69.6725	0.0045672 +/- 0.00124897	XMM-NEWTON

Queried the X-ray MASTER catalogue.

There are 42 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*	Catalogue
10.6	149.6000	69.6925	NED
12.4	149.5971	69.6894	NED
14.1	149.5888	69.6883	NED
20.6	149.5996	69.6972	NED
21.1	149.6008	69.6875	NED
23.5	149.5746	69.6894	NED
24.8	149.6067	69.6878	NED
25.8	149.6092	69.6958	NED
29.8	149.6079	69.6864	NED
34.3	149.6025	69.6836	NED

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

There are 784 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
14.4	149.5887	69.6884	B1=15.6, B2=15.8, I=13.9, R1=14.1, R2=14.7	USNO-B1
14.5	149.5890	69.6883	h=13.0, j=13.4, k=12.9	2MASS
14.5	149.5888	69.6884	I=14.5, R=15.0, g=15.2, u=16.7, z=14.4	SDSS
26.1	149.6094	69.6960	I=23.9, R=23.7, g=23.3, u=25.4, z=22.7	SDSS
43.0	149.5942	69.6804	I=22.0, R=22.2, g=23.6, u=23.2, z=21.2	SDSS
47.6	149.5985	69.7053	I=21.6, R=23.4, g=24.2, u=26.4, z=20.8	SDSS
47.7	149.5564	69.6975	I=22.1, R=23.3, g=23.6, u=23.1, z=21.5	SDSS
51.3	149.5647	69.6815	I=22.1, R=23.5, g=23.4, u=24.9, z=21.8	SDSS
61.1	149.6324	69.6830	R1=20.1, R2=20.7	USNO-B1
63.2	149.6232	69.6786	B1=19.4, B2=19.4, I=17.8, R1=18.6, R2=18.4	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 137 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.