View observation definition

History

Mnemonic:

MAJ_JUP_AURORAL_MAPPING

Name:

MAJ Jupiter Auroral Mapping (similar to MAJIS_JUP_DISK_SCAN but for high latitudes during high inclination phase)

Description:

Jupiter Auroral Mapping

Scanning of the instrument slit over Jovian polar regions, from polar limb to approx. 50°N/S latitudes, with exposure times optimized for weak auroral emissions.

Note: similar to MAJIS_JUP_DISK_SCAN but for high latitudes during high inclination phase

Duration: typically, 40 min (200 lines <-> typical size of latitudes where polar ovals are observed)

Payload:

MAJIS

Pointing

Pointing Type:

nadir offset

Target:

Jupiter atmosphere

PTRSnippet file:

Advanced

Scheduling Rules:

During low sub-s/c latitude phases, observations are performed during pericenter segments, around the time when sub-spacecraft points passes the 180° System III longitude (better visibility of North Polar Oval).
Observations consist of four cubes intercalated in time of about 50 min (from the start of the (n)-th cube to the start of the (n+1)-th cube). During the high sub-s/c latitude phase, further observations (sets of four or more cubes) will be performed at each passage at the local maximum absolute value of s sub-s/c latitude. Observations at low latitudes can be also performed on the basis of orbit-by-orbit assessment.

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

Avoidance Rules:

out of eclipses, observations are not performed when the optical axis of satellite is not compliant with EID-MAJ-02050

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

Comments:

#update2024Sept27

Support Plot 1:

Support Plot 2:

Support Plot 3:

Commanding

ITLSnippet file:

Related segment definitions

	Segmentdefinition
Segment	JA_INCL
Segment	J_AURORA
Segment	JM_PE_OBS
Segment	JA_PE_OBS
Segment	JM_INCL
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	-	2 channels, 100 kHz, scan mirror

Data profiles

	Event	Time	Mode	User Defined Data Rate (bit/s)	Comment
Start 00:00:00 User Defined 53440.0 [bit/s]	Start	00:00:00	User Defined	53440.0	Update after PJ12 exercise. Previous: bit/s: 167000 (max) – 54000 (min) Maximum estimate is obtained assuming 508 spectels and 508 spectels for VISNIR and IR respectively. 5 bits/data element compression factor is considered. Data reduction factor: further x 1-0.5 from spectral editing

Close Cancel

JSOC Uplink Core System