GCN Circular 45966
Subject
EP261006a / AT 2026aetp: Optical follow-up with the 1.3-m DFOT
Event
Date
2026-10-16T18:38:05Z (15 hours ago)
From
pawarpankaj1492@gmail.com
Via
Web form
Pankaj Pawar, Sarvesh Yadav, Dhruv Jain, Anshika Gupta, Debalina kar and Kuntal Misra (ARIES, Nainital, India) report:
We observed the field of EP261006a (Lao et al., GCN 45826) and its optical
counterpart AT 2026aetp (Eyles-Ferris et al., GCN 45831) with the 1.3-m
Devasthal Fast Optical Telescope (DFOT), India, on 2026 October 15.
Observations started at 18:03:52 UT. We obtained six 300-s exposures in each
of the V, R and I filters.
We detect the optical counterpart in the stacked difference images, using
archival Pan-STARRS and Legacy Survey images as references. Our preliminary
PSF photometry is:
Mid-time (UT) Tmid-T0 (d) Filter Exposure (s) Mag (Vega)
2026-10-15 18:19:04 9.02022 R 6 x 300 18.68 +/- 0.13
2026-10-15 18:50:59 9.04239 I 6 x 300 18.96 +/- 0.18
2026-10-15 19:33:34 9.07196 V 6 x 300 18.53 +/- 0.15
T0 is 2026-10-06 17:49:57 UT (Lao et al., GCN 45826). Photometry was
calibrated against nearby Pan-STARRS stars transformed to approximate Johnson
V and Cousins R/I magnitudes on the Vega system. The uncertainties include
estimated subtraction systematics. Magnitudes are not corrected for Galactic
extinction.