Home › Core › Observation definitions › MAJ Star occultation by jovian rings

View observation definition

MAJ_Ring_Occultation
MAJ Star occultation by jovian rings
Observation of a star occulted by the rings
Scan windowing of 9 lines centered on the star (1 scan step = 1/3 MAJIS IFOV) possible

Pointing: Inertial. For each occultation, transit of TBD min
Satellite orientation: Inertial pointing of the S/C towards the position of the star to maintain MAJIS slit fixed on it. These occultation observations need to be consolidated in the future (star atlas, signal, Tint, S/C inertial capabilities). Scan mirror can be used to mitigate APE drift
MAJIS

Pointing

inertial
-

Advanced

Radial spatial resolution does not depend from the distance S/C-rings: observations from distance >~ Callisto (to minimize spiking issue) Elevation >20° Observations constrained by availability of bright stars in IR
any rule that is used to schedule the observation: repetition rules, continuous (plasma instruments), one-off, every orbit, every day, etc
TBD
conditions that make the observation not possible (e.g. thruster firing)
#update2022May18

Commanding

Related segment definitions

Segmentdefinition

Segment

J_RING

Segment

MAJIS_OBSERVATION

Segment

MAJIS_PRIME_OBSERVATION

Power profiles

Event Time Mode User Defined Power (Watts)  (Custom power when selecting User Defined mode) Comment  (Comment when exported to observation definition file)

Start 00:00:00 SCIENCE_MAX 26.7 [Watt]

Start

00:00:00

SCIENCE_MAX

-

Data profiles

Event Time Mode User Defined Data Rate (bit/s)  (Custom data rate when selecting User Defined mode) Comment  (Comment when exported to observation definition file)

Start 00:00:00 User Defined 0.0 [bit/s]

Start

00:00:00

User Defined

0.0

TBD. (5b / data element, TBD s per vertical line, no spatial binning, no spectral binning, spatial windowing = 16) per cube.
No reduction factor
Close Cancel