[vsnet-grb-info 3475] GRB 060605: SkyNet Optical Limits

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5310
SUBJECT: GRB 060605: SkyNet Optical Limits
DATE:    06/07/14 01:48:56 GMT
FROM:    Melissa Nysewander at UNC,Chapel Hill  <mnysewan at physics.unc.edu>

A. Smith, S. Parris, J. Kirschbrown, M. Nysewander, D. Reichart, K.
Ivarsen, A. Foster, A. LaCluyze, and J.A. Crain report:

SkyNet observed the localization of GRB 060605 (Page et al., GCN 5221)
beginning at 06:55:02 UT on 06/06/2006, 12.7 hours after the initial
trigger with the 14.5" TTT Telescope and the 14" GORT (GLAST Optical
Robotic) Telescope, located at Hume Observatory, California:

Filter  Start (UT)  Stop (UT)   Exposure   Total (hr)   Telescope

V       08:20:36    09:43:56    160s x 26     1.2          TTT
Red*    06:55:02    10:10:50    160s x 32     1.4          TTT
V       09:47:32    11:32:12    160s x 38     1.7          GORT
B       08:47:59    09:44:22    160s x 21     0.9          GORT

Observations were taken under poor conditions.  We do not detect the
afterglow (Rykoff et al., GCN 5220) down to 3-sigma limiting magnitudes of
V > 20.0 at a mean time of 14.8 hours, Red > 18.5 at 13.4 hours with TTT,
and V > 19.1, B > 16.7 at 16.4 and 15.0 hours respectively with GORT.


*Red well approximates the R-band.