View observation definition

MAJIS Jupiter Limb Scan
The MAJIS pointing mirror is used to scan the atmosphere of Jupiter over the limb up to 3000km.
The scan mirror step of 1/3 MAJIS IFOV shall constrain the spatial sampling.

Typically, we have cubes of about 20 lines by 50 pixels (~7500 km with 1 pixel=150 km)
Pointing type: OFF-NADIR (nominal pointing position over the Jupiter limb), continuous tracking (‘track tangent limb’)
satellite orientation: LIMB TANGENT (slit tangent to the limb)
Duration: 4 min for each cube (20 lines)




Best performed at 90° phase angle (subsolar and antisolar meridian at limb) Distance from Jupiter > 1 .106 km to avoid despiking issue and allow long Tint Conflict with downlink or moon flybys because of their length (high exposure times, high number of lines)
any rule that is used to schedule the observation: repetition rules, continuous (plasma instruments), one-off, every orbit, every day, etc
conditions that make the observation not possible (e.g. thruster firing)