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GCN Circular 30868

Subject
GRB 210919A: DECam Upper Limits
Event
GRB 210919A
Date
2021-09-23T14:09:18Z (4 years ago)
From
Justin Pierel at STScI <jpierel@stsci.edu>
J. Pierel (STScI), J. Cooke (Swinburne U.), A. Rest (STScI), R. Foley (UCSC), and R. Ridden-Harper (U. Canterbury) report:

We observed the field of GRB210919A (Tohuvavohu et al. GCN 30846) using the Dark Energy Camera (DECam) instrument on the 4m Victor M. Blanco Telescope at CTIO. We obtained 5x250s exposures in the i and z-band from 08:20-09:05 UTC on 2021-09-21.

No source is detected inside the enhanced Swfit-XRT uncertainty radius (Goad et al., GCN 30850), to 3-sigma limits of: i>24.1 mag and z>23.6 mag.
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