MMT Binospec gri color image of GRB 260310A taken on 2026 April 18, ∼39.2 days posttrigger. The coordinates of our Very Large Array (VLA) detection are shown as a purple cross and are consistent with the optical position. The statistical error on the radio position is smaller than the systematic astrometric accuracy of ∼10 mas typically achievable by the VLA in A configuration. For comparison, the Einstein Probe 90% localization region of the GRB is shown as a blue circle (R. Jayaraman et al. 2026a).