The primary payload, NASA’s Interstellar Mapping and Acceleration Probe (IMAP) was joined by two rideshare payloads heading to Lagrange Point 1. Liftoff from pad 39A at NASA’s Kennedy Space Center occurred at 7:30 a.m. EDT (1130 UTC).
NASA’s Interstellar Mapping and Acceleration Probe (IMAP) will be the primary payload on a SpaceX Falcon 9 rocket launching no earlier than Sep. 23. The vehicle is joined by the Carruthers Geocorona Observatory and NOAA’s Space Weather Follow-On – Lagrange 1 (SWFO-L1) observatory.