A Delta 2 7320-10 successfully launched Earth Observing-1, SAC-C, and Munin, from Vandenberg Air Force Base, pad SLC 2W, at 1824:25 UTC on November 21, as a short 22-second launch window opened. Earth Observing-1 (EO-1) is the first satellite in NASA's New Millennium Program Earth Observing series. Satelite de Aplicanciones Cientificas-C (SAC-C) is a joint Argentina/NASA flight. The Munin nanosatellite is sponsored by the Swedish Institute of Space Physics. The flight was originally scheduled to also carry Citizen Explorer 1 (CX-1), but the microsatllite was removed from the manifest because it did not meet the deadline for integration on the launch vehicle.