We report on the simultaneous Giant Metrewave Radio Telescope (GMRT) and Algonquin Observatory (ARO) observations at 550-750 MHz of scintillation PSR B1508+55, resulting in a $\sim$10,000-km baseline. This regime measurement lies between shorter few 100-1000~km baselines earlier multi-station much longer earth-space baselines. measure cross-correlation coefficient $0.22$, offset from zero time ...