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TITLE:   GCN CIRCULAR
NUMBER:  24912
SUBJECT: GRB 190630A: Fermi GBM Final Real-time Localization
DATE:    19/06/30 06:21:40 GMT
FROM:    Fermi GBM Team at MSFC/Fermi-GBM  <do_not_reply@GIOC.nsstc.nasa.gov>

The Fermi GBM team reports the detection of a likely SHORT GRB

At 06:09:58 UT on 30 Jun 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190630A (trigger 583567803.319036 / 190630257).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 307.0, Dec = -1.3 (J2000 degrees, equivalent to J2000 20h 27m, -1d 18'), with a statistical uncertainty of 7.7 degrees.

The angle from the Fermi LAT boresight is 48.0 degrees.

The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190630257/quicklook/glg_skymap_all_bn190630257.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190630257/quicklook/glg_healpix_all_bn190630257.fit

The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190630257/quicklook/glg_lc_medres34_bn190630257.gif

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TITLE:   GCN CIRCULAR
NUMBER:  24965
SUBJECT: IPN triangulation of GRB 190630A (short)
DATE:    19/07/02 12:01:33 GMT
FROM:    Anna Kozlova at Ioffe Institute  <ann_kozlova@mail.ioffe.ru>

A. Kozlova and K. Hurley, on behalf of the IPN,

A. Goldstein, M. S. Briggs, and C. Wilson-Hodge
on behalf of the Fermi GBM team,

A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,
and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,

and

S. Xiao, C. K. Li, X. B. Li, Y. Huang, and S. L. Xiong
on behalf of the Insight-HXMT GRB team,
report:

The short-duration GRB 190630A was detected
by Fermi (GBM trigger 583567803), INTEGRAL (SPI-ACS),
and Insight (HXMT/HE) at about 22198 s UT (06:09:58).

We have triangulated this GRB to a GBM-INTEGRAL annulus centered at
RA(2000)=32.604 deg (02h 10m 25s)  Dec(2000)=-47.005 deg (-47d 00' 16"),
whose radius is 73.654 +/- 2.609 deg (3 sigma).

The annulus is partially consistent with the 90% localization
probability region of GW compact binary merger candidate
event S190630ag (The LIGO Scientific Collaboration and the Virgo
Collaboration GCN Circ. 24922).

This annulus may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB190630_T22198/IPN/