GCN Circular 13112

Walker, C., Court J., Duffy, R., Edwards T., Herath, M., Kirk, J.,  
Patel, S., Prajs, S., Tunbridge, B., Williams, D., Wood, R., Wright,  
P., Munoz-Darias, T., Knigge, C., Coriat, M. (University of  
Southampton), Gimeno, R. (IAC, Tenerife), Gorosabel, J. (IAA-CSIC,  
Granada), report:

We observed the Swift/XRT location of the GRB 120326A (Goad et al.,  
GCNC 13110) using the IAC80 82cm telescope at Tenerife (Canary  
Islands, Spain).   We took a set
of VRI-band images from 02:23:20 UT to 05:47:06 UT. The optical  
transient (Klotz et al., GCNC 13108) is clearly detected. After a  
calibration using the USNO B1 catalogue, we detected an important  
rebrightening from R=19.4 to R=18.4.