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GCN Circular 32309

GRB 220701A: Lowell Discovery Telescope Optical Observations
2022-07-01T09:46:37Z (2 years ago)
Brendan O'Connor at UMD <>
B. O'Connor (UMD, GWU), S.B. Cenko (UMD, NASA-GSFC), E. Troja (UTV),
S. Dichiara (PSU), A. Kutyrev (UMD, NASA-GSFC), S. Veilleux (UMD):

We observed GRB 220701A (Evans et al. GCN 32306) with the Large
Monolithic Imager (LMI) on the 4.3-m Lowell Discovery Telescope (LDT).
Observations began on July 1, 2022 at 08:01:14 UT in r-band (~3.1 hr
after the GRB) for a total exposure of 1000 s at airmass 1.3 and
seeing 1.2". Within the XRT enhanced position (Evans et al. GCN 32308)
we do not detect a source to depth r > 24.3 AB mag.

Magnitudes are calibrated against the SDSS catalog and are not corrected
for Galactic extinction.

We thank the staff of the Lowell Discovery Telescope for assistance
with these observations.
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