TITLE:   GCN CIRCULAR
NUMBER:  34749
SUBJECT: Correction to Fermi GBM Statement for Trigger 716527670/230916144
DATE:    23/09/20 19:18:23 GMT
FROM:    Oliver J Roberts at USRA/NASA <oliver.roberts@nasa.gov>

We reported previously in GCN 34748 that Fermi-GBM trigger 716527670/230916144 was followed up by GOTO (Vail et al., GCN 34730), where a candidate afterglow (AT 2023sva) was identified and suggested it was the counterpart to the Fermi-GBM trigger.

This statement is incorrect. The afterglow reported in (Vail et al., GCN 34730) was not discovered in follow-up observations, but blindly via a search for fast transients in ZTF optical-survey data and not GOTO. The reported afterglow was checked against the GBM archive for any possible high-energy counterpart, where trigger 716527670/230916144 was inferred as a possible counterpart. 

We apologize for this inaccurate reporting and thank the co-authors of Vail et al. for bringing this to our attention.