TITLE:   GCN CIRCULAR
NUMBER:  37857
SUBJECT: GRB 241001A: ATCA radio observations
DATE:    24/10/24 20:36:15 GMT
FROM:    James Leung at U. Toronto / HUJI <jamesk.leung@utoronto.ca>

J. K. Leung (U. Toronto/HUJI), G. E. Anderson (Curtin University),
L. Rhodes (TSI/McGill), S. Chastain (UNM), A. Gulati (U. Sydney),
A. J. van der Horst (GWU) on behalf of the PanRadio GRB collaboration

We observed the field of GRB 241001A (Dagoneau et al., GCN 37655) at 5.5
and 9 GHz with the Australia Telescope Compact Array (ATCA) on 10
October 2024 from 16:00 to 20:00 UT and 19 October 2024 from 11:00 to
13:00 UT. The telescope pointing centre was placed at the location of
the optical afterglow candidate (Izzo et al., GCN 37667, GCN 37673).

In our preliminary analysis, we marginally detect a ~0.04 mJy source at
the phase centre at 5.5 GHz in the first observation. The source had
faded below detection thresholds by the time of the second observation.

We thank the CSIRO Space and Astronomy staff for supporting these
observations. We acknowledge the Gomeroi people as the traditional
owners of the Observatory site. The Australia Telescope Compact Array is
part of the Australia Telescope National Facility
(https://ror.org/05qajvd42) which is funded by the Australian Government
for operation as a National Facility managed by CSIRO.