TITLE: GCN CIRCULAR NUMBER: 38060 SUBJECT: EP241101a: OHP/T193 optical observations DATE: 24/11/03 13:58:27 GMT FROM: Christophe Adami at LAM <christophe.adami@lam.fr> C. Adami (LAM), report on behalf of a larger collaboration: We observed the field of EP241101a (Liang et al., GCN 38039; Perez-Garcia et al., GCN 38047; Lipunov et al., GCN 38049) using the T193cm telescope at Observatoire de Haute-Provence (France) equipped with the MISTRAL spectro-imager. 7 exposures were obtained in the r-band (7x600s) from 2024 02 November 19:38 UT to 2024 02 November 20:56 UT (~+20.5h after detection). The combined frame has a magnitude histogram peaked at r-band=22.1 (AB). The photometric calibration was performed using nearby objects from the PanSTARRS catalog and the magnitude is not corrected for Galactic extinction. There is no clear additionnal objects in the MISTRAL image as compared with the PanStarrs i-band image (the deepest in PanStarrs). The most appealing candidate present in the MISTRAL image and not visible in any of the PanStarrs images is below the MISTRAL magnitude histogram peak and is located at RA=02:30:53.09, DEC=22:43:48.11 with a preliminar estimated magnitude of r-band=22.8+/-0.5. Following MISTRAL observations of this source will be reported. We acknowledge the excellent support from Observatoire de Haute-Provence, in particular Stephane Favard. View this GCN Circular online at https://gcn.nasa.gov/circulars/38060. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...