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GCN Circular 39568

Subject

EP250302a: optical observation from the INAF Asiago Observatory

Date

2025-03-03T11:27:12Z (a month ago)

From

Andrea Reguitti at INAF - Osservatorio Astronomico di Brera <andreareguitti@gmail.com>

Via

Web form

A. Reguitti (INAF-OAB) reports on behalf of the CIBO (Coordinamento Italiano Burst Ottici) collaboration:

We observed the field of EP250302a (Zhu et al., GCN 39550

) from the INAF - Padova Astronomical Observatory located in Asiago (Italy) with the 67/92 Schmidt robotic telescope. The observation was carried in the Sloan-i filter, started on 2025 March 02 at 20:01:15 UT (i.e. 4.4 hr after the burst), and lasted for 15 minutes.

In our stacked images, the optical counterpart is detected at the coordinates reported by Zhu et al., GCN 39550

i = 19.98+-0.17 mag (AB; calibrated against the PS1 catalogue),

at a mid-time of about 4.5 hours after the trigger.