TITLE:   GCN CIRCULAR
NUMBER:  16031
SUBJECT: GRB 140323A: BOOTES-3 optical upper limit.
DATE:    14/03/23 20:00:23 GMT
FROM:    Juan Carlos Tello at IAA-CSIC  <jtello@iaa.es>

M. Jelinek, J. C. Tello, R. Cunniffe, S. Jeong, O. Lara-Gil, J. Gorosabel
(IAA-CSIC Granada), P. Kubánek (IP-ASCR Praha), M. Wildi (Obs. Vermes),
Ph. Yock (Univ. of Auckland), W. H. Allen (Vintage Lane Observatory) and
A. J. Castro-Tirado (IAA-CSIC), on behalf of a larger collaboration,
report:

"Following the detection of GRB 140323A by Swift (Troja et al., GCNC
16027), the 0.6m YA robotic telescope at the BOOTES-3 astronomical station
in Blenheim (New Zealand), responded ito the Swift BAT alert #592916. The
co-add of the second set of unfiltered images starting at 10:26:15 UT and
ending at 10:35:02 UT (i.e. 184-710 s postburst) reveals no optical
afterglow at the enhanced Swift XRT position (Osborne et al., GCNC 16028)
down to 18.5 mag. A first set only provides a shallower limit."