[vsnet-grb-info 2719] GRB 060121: optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4556
SUBJECT: GRB 060121: optical observations   
DATE:    06/01/22 02:44:59 GMT
FROM:    Angelo Antonelli at Obs. Astro. di Roma  <a.antonelli at mporzio.astro.it>

L.A. Antonelli (INAF/OAR), D. Malesani (SISSA), S. Covino (INAF/OABr), 
G. Andreuzzi, and G. Tessicini (INAF/TNG), report:

"We observed the field of GRB 060121 (Arimoto et al., GCN 4550; 
Prigozhin et al., GCN 4551; Boer et al., GCN 4552) with the Italian 
3.6m TNG telescope, located at the Canary Islands.

Preliminary analysis of a set of R-band exposures (totalling 30 minutes 
on-source) reveals no new sources brighter than the SDSS limit reported 
by Cool et al in GCN 4554.

This message can be cited."