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Mnemonic:

MAJ_STANDBY

Name:

MAJ Standby

Description:

After switch-on of MAJIS, the Boot SW automatically starts, and performs the primary boot from the PROM (Init fugitive BSW mode).
After processor modules initialization, the Boot software goes to STANDBY mode. By default, the ASW Image0 (stored in MRAM0 = ASM0) is autonomously loaded after a timeout of 30 seconds. MAJIS then
enters into ASW init Mode and then into SAFE mode.

In STANDBY Mode, all channels are off, and only DPU HK SID1 are received.

Payload:

MAJIS

Pointing

Pointing Type:

none

Target:

PTRSnippet file:

Advanced

Scheduling Rules:

MAJIS needs to be maintained in STANDBY mode using the TC(17,1) in the following cases :
- upload (using service 6) of new ASW images (or CUSW, or firmware) into MRAM: FCP-MAJ-070 describes the maintenance process.
- upload a new BROWSE Table FCP-MAJ-060 into MRAM
- select ASW Image1 and then start ASW Image 1 instead of teh default ASW Image0. FCP-MAJ-062
- any other update of MRAM using service 6

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:

Source: JUI-IAS-MAJ-TN-104. Update 23/12/2025.

Support Plot 1:

Support Plot 2:

Support Plot 3:

Commanding

ITLSnippet file:

Related segment definitions

	Segmentdefinition
Segment	E_RS_OBS
Segment	E_IS_OBS
Segment	E_distant
Segment	J_SAT_OBS
Segment	JM_PE_OBS
Segment	JM_INCL
Segment	JA_PE_OBS
Segment	JA_INCL
Segment	JA_PH
Segment	JA_M
Segment	J_AURORA
Segment	STAR_OCC_OBS
Segment	G_distant
Segment	C_distant
Segment	G_IS_OBS
Segment	MAJIS_OBSERVATION
Segment	MAJIS_PRIME_OBSERVATION

Power profiles

	Event	Time	Power (Watts)	Comment
Start 00:00:00 4.1 [Watt]	Start	00:00:00	4.1

Data profiles

	Event	Time	Data flow	Data Rate (bit/s)	Comment
Start 00:00:00 50.0 [bit/s]	Start	00:00:00	-	50.0	Duration: 30 seconds for nominal operations. <30 minutes to upload all SW images of one MRAAM section (ASM0 or 1)

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