GRB 010104

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.