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Mnemonic:

DRAFT_3GM_GRAVITY_GCO500_200

Name:

DRAFT_3GM_GRAVITY_GCO500_200

Description:

Gravity measurement during GCO500 and GCO200 will use the HGA during downlink sessions. If not possible, it will use the MGA. KaT and HAA should be operating during gravity measurement. USOis OFF during this phase (except in case of BSR opportunity). HAA should be in STANDBY mode at least 48 hours before the gravity measurement. The observation should start with 1 hour of HAA in CALIBRATION mode. KaT starts with 10min of warm-up.

Payload:

3GM

Pointing

Pointing Type:

track

Target:

Ganymede

PTRSnippet file:

Advanced

Scheduling Rules:

HAA should be in STANDBY mode and scheduled in the background (TO BE SCHEDULED BY SOC AT PLANNING SET-UP). If HAA is OFF, HAA needs to be ON at least 48hours before measurement starts. GRAVITY_GCO500_200 should be scheduled whenever a communication pass is planned. If not PRIME, MGA is used.

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

Avoidance Rules:

N/A

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

Comments:

Support Plot 1:

Support Plot 2:

Support Plot 3:

Commanding

ITLSnippet file:

Power profiles

	Event	Time	Mode	User Defined Power (Watts)	Comment
Start -01:00:00 HAA_CALIBRATION 12.0 [Watt]	Start	-01:00:00	HAA_CALIBRATION	-	HAA calibration time (1hour before gravity measurement starts). HAA assumed already in STANDBY mode as per scenario set-up
Start -00:10:00 KAT_TRACKING 35.14 [Watt]	Start	-00:10:00	KAT_TRACKING	-
Start 00:00:00 HAA_OBSERVATION 12.0 [Watt]	Start	00:00:00	HAA_OBSERVATION	-
End 00:00:00 HAA_STBY 12.0 [Watt]	End	00:00:00	HAA_STBY	-

Data profiles

	Event	Time	Mode	User Defined Data Rate (bit/s)
Start -01:00:00 HAA_CALIBRATION 1542.3 [bit/s]	Start	-01:00:00	HAA_CALIBRATION	-
Start -00:10:00 KAT_TRACKING 0.0 [bit/s]	Start	-00:10:00	KAT_TRACKING	-
Start 00:00:00 HAA_OBSERVATION 1542.3 [bit/s]	Start	00:00:00	HAA_OBSERVATION	-
End 00:00:00 HAA_STBY 50.0 [bit/s]	End	00:00:00	HAA_STBY	-

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