Simultaneous Radio and Optical Measurements of Scorpius XR-1

Radio measurements of Sco XR-1 were undertaken to verify the reported variability of this object at radio frequencies. Optical measurements were made simultaneously to search for covariability between the optical and radio flux. During the observing period, the optical output of the object varied but did not flare, while the radio emission varied on a time scale of hours to days. No correlation was evident between variations in these fluxes.