On Saturday, Jan 6, 2001, I received this message by E-mail:
GRB 010104 The message is from GCN No. 910: TITLE: GCN GRB OBSERVATION REPORT NUMBER: 910 SUBJECT: IPN triangulation of GRB010104 DATE: 101/01/06 01:12:56 GMT FROM: Kevin Hurley at UCBerkeley/SSL
K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the Konus-Wind and NEAR GRB teams, and E. Mazets and S. Golenetskii, on behalf of the KONUS-WIND GRB team, report: Ulysses, NEAR, and KONUS-WIND observed this GRB at 62489 seconds. As observed by Ulysses, it had a duration of approximately 2. seconds, a 25-100 keV fluence of approximately 4.7E-06 erg/cm2, and a peak flux of approximately 7.3E-07 erg/cm2 s over 0.25 seconds. We have triangulated it to a preliminary, 3 sigma error box whose approximate area is 186. sq. arcmin. and whose coordinates are: RA(2000) DEC(2000) ERROR BOX CENTER: 17 h 49 m 45.54 s 18 o 13 ' 35.46 " ERROR BOX CORNER 1: 17 h 49 m 12.11 s 18 o 8 ' 46.17 " ERROR BOX CORNER 2: 17 h 50 m 55.41 s 18 o 11 ' 55.30 " ERROR BOX CORNER 3: 17 h 48 m 35.74 s 18 o 15 ' 14.77 " ERROR BOX CORNER 4: 17 h 50 m 18.99 s 18 o 18 ' 24.53 " This error box may be improved.
The "error box" is this portion of the sky -- click on the picture to zoom in:
There's just one problem with further study of this particular gamma-ray burst. Take a look again at the portion of the sky in which it ocurred:
This GRB happened to occur in the portion of the sky which is visible during the day. Ooops.
Copyright © Michael Richmond. This work is licensed under a Creative Commons License.