SEIS is the Seismic Experiment for Interior Structure. HP3 is the Heat Flow and Physical Properties Probe. RISE is the Rotation and Interior Structure Experiment, which uses the lander’s two medium-gain antennas. TWINS is the Temperature and Wind for InSight instrument, part of the mission’s Auxiliary Payload Sensor Subsystem (APSS), which also includes the magnetometer and the pressure sensor (out of view beneath the pressure inlet). Locations of the lander’s radiometer and laser retroreflector (LaRRI) are out of sight, on the other side of the deck.