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Mnemonic:

MAJ_MainRING _PhaseCurve

Name:

MAJ Monitor phase curves of main rings

Description:

Observations of the main rings at various phase angles (N angles), one ansae (always the same), 20 vertical lines
Pointing: S/C pointing ring plane at 1.8 R_J (extremity of main rings)
Satellite orientation: OFF-NADIR, Ring plane while maintaining horizontal orientation of MAJIS slit, MAJIS scan mode activated for vertical sampling centered on the rings (20 lines)
Duration: 200 sec for one observations at a given phase angle

Payload:

MAJIS

Pointing

Pointing Type:

nadir offset

Target:

PTRSnippet file:

Advanced

Scheduling Rules:

Low elevation (<0.2 deg), sampling from high phase to low phase; N(TBD) phase angles Acquisition at far distance (>8.105 km at closest approach) to mitigate the spikes issue (<1 e- impacts/s) constraining the resolution (IFOV>=120 km before binning) 100 kHz readout mode (lowest RON < 30 e-) Coordinated observations with JANUS would provide a phase function in the JANUS-MAJIS combined wavelength range

any rule that is used to schedule the observation: repetition rules, continuous (plasma instruments), one-off, every orbit, every day, etc

Avoidance Rules:

TBD

conditions that make the observation not possible (e.g. thruster firing)

Comments:

#update2022May18

Support Plot 1:

Support Plot 2:

Support Plot 3:

Commanding

ITLSnippet file:

Related segment definitions

	Segmentdefinition
Segment	J_RING
Segment	MAJIS_OBSERVATION
Segment	MAJIS_PRIME_OBSERVATION

Power profiles

	Event	Time	Mode	User Defined Power (Watts)	Comment
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)	Comment
Start 00:00:00 User Defined 13000.0 [bit/s]	Start	00:00:00	User Defined	13000.0	(5b / data element, 10 s per vertical line, spatial binning x4, spectral binning x4) No reduction factor

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