GCN Circular 10705
Subject
GRB 100423A: xinglong TNT optical upper limit
Event
Date
2010-04-29T16:50:42Z (16 years ago)
From
L.P. Xin at NAOC <xlp@bao.ac.cn>
L.P. Xin, Z.X. Lin, Y.L. Qiu, J.Y. Wei,J. Wang, J.S. Deng,
C. Wu, J.Y. Hu, on behalf of EAFON report:
We began to observe GRB100423A (Stroh et al., GCN 10651;
Filgas et al., GCN 10652; Ivarsen et al., GCN 10653)
with Xinglong TNT telescope at 14:33:45(UT). The moon
light was very bright. A series of R band images was
obtained. No new source was found in the XRT errorbars
within the combined 6*300s R band image. The 3 sigma upper
limit is about 19.5 mag derived from USNO-B1.0,at the mean
time of 14.2 hour after the burst.
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For more information about Xinglong GRBs Follow-up
observations, please visit the website:
http://www.xinglong-naoc.org/grb/