[vsnet-grb-info 5657] GRB080218B: Watcher prompt limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7316
SUBJECT: GRB080218B: Watcher prompt limit
DATE:    08/02/19 02:02:07 GMT
FROM:    Martin Jelinek at Inst.Astrophys.Andalucia,Granada  <mates at iaa.es>

J. French (UCD Dublin), 
M. Jelinek  and Petr Kubanek (IAA CSIC Granada) and 
Antonio de Ugarte Postigo (ESO Santiago)

on behalf of the Watcher collaboration report:

"The  0.4 m telecope  Watcher,  located  at  Boyden
observatory,  South Africa,  followed the Swift GRB
080218B (Schady et al. GCN 7314).

10s unfiltered (limmag = 16.0) images were obtained
starting 60.4s after the GRB (18.3s after receiving
the notification).

We  do  not detect  any  new source in  single  nor
combined images within the BAT or XRT errorbox."

This message may be cited.