GRB 240809A: ATA radio non-detection

"We observed GRB 240809A (Evans et al., GCN 37110) with the Allen Telescope Array (ATA) beginning on 2024 August 09 23:25 UTC (14.9 h after the burst) at 5GHz and 8GHz. In our preliminary analysis, we do not detect any radio emission at or near the X-ray and optical position (Evans et al., GCN 37110) or radio position (Christy et al., GCN 37158) to a 3-sigma limit of ~0.9mJy at 5GHz and ~2.0mJy at 8GHz. We thank the ATA staff for quickly scheduling these observations"