RBSP update:
Up and Running: Just Hours After Launch, RBSP Takes First Science Steps
snip:
Additionally, the Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) instrument was turned on - though only with low voltage, just enough to power up the Engineering Radiation Monitor (ERM), which keeps track of the amount of radiation entering RBSP.
The first Saturday of the mission (Sept. 1) saw the first full powering-up of one of the many instruments on the spacecraft. At about 3 a.m. EDT, the Relativistic Electron Proton Telescope (REPT) instrument of the Energetic Particle, Composition, and Thermal Plasma Suite (ECT) aboard spacecraft A was turned on, and useable data began to immediately stream back to the REPT team. REPT-B was powered up 12 hours later.
The full article is here: [link to www.spacemart.com]