TITLE: GCN CIRCULAR NUMBER: 38588 SUBJECT: EP241217A: LCO optical observations DATE: 24/12/17 11:17:46 GMT FROM: luca.izzo@inaf.it
L. Izzo (INAF-OACn and DARK/NBI), and D. B. Malesani (DAWN/NBI and Radboud Univ.) report:
We observed the field of EP241217A (Zhou et al., GCN #38586) with the Sinistro instrument mounted on the 1-m telescope of the LCO network, located at the MacDonald Observatory, TX, USA. Observations started on 2024 December 17 at 06:37 UT (1.02 hr after the EP trigger). We obtained a series of 3x180 s images in the SDSS-r filter.
The optical object reported by Levan et al. (GCN #38587) is weakly detected in our image. We measure a preliminary magnitude of r = 20.99 +/- 0.21 mag (AB), calibrated against nearby stars from the Pan-STARRS catalog.
This project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 101004719. We also acknowledge the use of the ECSnoopy package by E. Cappellaro.
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