TITLE: GCN CIRCULAR NUMBER: 33230 SUBJECT: ZTF23aabmzlp/AT2023azs: GIT confirmation of the likely afterglow DATE: 23/01/28 19:08:22 GMT FROM: Harsh Kumar at Indian Inst of Tech,Bombay H. Kumar (IITB), V. Swain (IITB), R. Norbu (IAO), G. Waratkar (IITB), V. Bhalerao (IITB), G. C. Anupama(IIA), S. Barway (IIA) report on behalf of the GIT team: We observed ZTF23aabmzlp/AT2023azs discovered by Zwicky Transient Facility (Andreoni et al., GCN #33229), with 0.7m GROWTH-India Telescope (GIT). We obtained three exposures of 300sec each in the g', r', and i' filters. We clearly detected the candidate in our stacked images. The photometric results follow as:- ------------------------------------------------------------------- JD (mid) | Filter | Magnitude (AB) | ------------------------------------------------------------------- 2459973.224114 | g' | 20.48 +/- 0.07 | 2459973.235212 | r' | 20.31 +/- 0.06 | 2459973.248096 | i' | 19.79 +/- 0.20 | ------------------------------------------------------------------- GIT observations imply that the source continues fading and is redder in colour. Comparing our g' and r' observations with ZTF (Andreoni et al., GCN #33229), we compute a power-law decay index of ~0.7, further strengthening the claim that the candidate is an afterglow. Candidate follow-up is encouraged. The magnitudes are calibrated against PanSTARRS DR1 (Chambers et al., 2016) and not corrected for Galactic extinction. The GROWTH India Telescope (GIT; Kumar et al. 2022 ) is a 70-cm telescope with a 0.7-degree field of view, set up by the Indian Institute of Astrophysics (IIA) and the Indian Institute of Technology Bombay (IITB) with funding from DST-SERB and IUSSTF. It is located at the Indian Astronomical Observatory (Hanle), operated by IIA. We acknowledge funding by the IITB alumni batch of 1994, which partially supports operations of the telescope. Telescope technical details are available at https://sites.google.com/view/growthindia/.