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MAG_CALROLL
MAG_CALROLL
Campaign of spacecraft rolls to allow calibration of J-MAG magnetic field measurements. J-MAG will take data in gradiometer mode continuously while the spacecraft rolls about two principal axes, in regions where the Jovian magnetic field is >100 nT. Spacecraft rolls about two principal axes. 3 rolls of 360° about first axis at 0.5 rev/hr, then 3 rolls about the second axis (also at 0.5 rev/hr). The spacecraft rotation axes must always make an angle with the ambient magnetic field between 20° and 160°.
JMAG

Pointing

Slew
-

Advanced

Five separate roll campaigns over the course of the Jupiter phase and before the start of the Ganymede phase . Centre campaign time interval on Jupiter periapse.
any rule that is used to schedule the observation: repetition rules, continuous (plasma instruments), one-off, every orbit, every day, etc
None
conditions that make the observation not possible (e.g. thruster firing)

Commanding