Difference: GCNCIRCULAR21515 ( vs. 1)

Revision 12017-08-18 - ThomasKupfer

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META TOPICPARENT	name="LVCGCNs"

TITLE: GCN CIRCULAR
NUMBER: 21515
SUBJECT: LIGO/Virgo G298048: IPN triangulation of Fermi/GBM trigger 524666471/170817529
DATE: 17/08/17 18:35:12 GMT
FROM: Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>

D. Svinkin, K. Hurley, on behalf of the IPN,

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

V. Connaughton, M. S. Briggs, C. Meegan, V. Pelassa, and A. Goldstein, on behalf of the Fermi GBM team, report:

A short-duration burst (Connaughton, LVC GCN Circ. 21506) has been detected by Fermi (GBM; trigger 524666471), and INTEGRAL (SPI-ACS), so far, at about 45666 s UT (12:41:06).

We have triangulated it to a GBM-INTEGRAL annulus centered at RA(2000)=119.131 deg (07h 56m 31s) Dec(2000)=-44.133 deg (-44d 07' 57"), whose radius is 73.554 +/- 19.687 deg (3 sigma). The annulus is consistent with the Fermi-GBM ground position (glg_loclist_all_bn170817529_v01.txt).

This annulus may be improved.

A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB170817_T45666/IPN/

-- ThomasKupfer - 18 Aug 2017

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