LATE CRUISE FLIGHT SOFTWARE UPLOAD AND HEALTH CHECK
END-OF-DAY DOWNLINK STATUS REPORT

Last updated: JUNE 17, 1997, 2:00 pm PST, Data Controller: Allen R. Sirota

SEQUENCE UPLINK ASSESSMENT:

Sequence 40610D:

• The Rover memory patch sequence 40610D initiated at SCET 18:06:33
• All commands were executed
• No errors were reported
• Last command executed was 712 (shutdown) at SCET 18:16:43
• Sequence executed nominally
• Temperatures were within expectations; external temperatures ranged between -13 and -18 deg C, battery temperatures ranged between 12 and 14 deg C, and other internal WEB temperatures ranged between 2 and 6 deg C
• Electronic board temperatures rose slightly during sequence execution (up to 9 deg C for both boards)
• Telemetry indicated Rover in proper stowed condition (no movement)
• Memory load verified by checksum
• No evidence of A/D circuit anomoly
• Approval to initiate health check given

Sequence 40630B:

• The Rover health check sequence 40630B initiated at SCET 19:09:23
• All commands were executed
• No errors were reported
• Last command executed was 820 (shutdown) at SCET 19:09:51
• Sequence executed nominally
• Temperatures were within expectations; external temperatures ranged between -13 and -18 deg C, battery temperatures ranged between 13 and 15 deg C, and other internal WEB temperatures ranged between 4 and 9 deg C
• Telemetry indicated Rover in proper stowed condition (no movement)
• No evidence of A/D circuit anomoly
• APXS interface tested successfully
• Rover status is nominal

• Rover in nominal condition and is ready for Mars operations

Operational Constraints (For next sequence)

1. None

Operational Constraints (General)

1. None

SEQUENCE EXECUTION STATUS:

Execution:	Nominal
State:	Shutdown
Wakeup:	SCET 97/168-18:06:15
Crit Errors:	None
Cmds Skipped:	None
Telem Anomalies:	Reed relay indication in Lander D/L not updating
Last Command:	820

VEHICLE STATE: (AS OF COMMAND: 1820 SCET: 19:10:57

Mission Phase:	Cruise (1)
Mode:	Shutdown
Config:	Nominal, Stowed
Power:	Battery
Device Status:	All Good
Temp (Internal):	Nominal
Temp (External:	Nominal
Temp:(Modem):	Nominal

   Parameter    Initial    Final    Parameter     Initial  Final
----------------------------------------------------------------
X Position (m)    0.000    0.000   LBogey (deg)    38.64  38.64
Y Position (m)    0.900    0.900   RBogey (deg)    38.24  38.32
Heading  (deg)    0.0      0.0     Diff   (deg)   -41.04 -40.64

Pitch    (deg)    0.0      0.0
Roll     (deg)    0.0      0.0

ADM Pos  (deg)  -29.44   -29.44

LFS      (deg)     0.0     0.0     RFS    (deg)    0.6    0.6
LRS      (deg)     1.9     1.9     RRS    (deg)   -1.3   -1.3
----------------------------------------------------------------

              Total           Battery Remaining (Amp*hrs)
Category    Allocation      Initial    Final    *Predicted
--------------------------------------------------------------
Operations      10            10        9.92       9.92
Science         10            10        10         10
Technology      10            10        10         10
Reserve          6            6         6          6
--------------------------------------------------------------
Total           36            36        35.92      35.92

* at completion of current sequence assuming nominal execution

	ADM			Bumper		Solar
	UL	UR	B	RB	LB	LR	RR	RF	LF
Mask	1	1	1	1	1	1	1	1	1
State	0	0	1	0	0	0	0	0	0

	ERROR FLAGS
	Skip	GenFail	InvalidCmd	WEB_Hot	NoPwr	NonTrav	DevNA	DevFail	Timeout
Mask	1	1	1	1	1	1	1	1	1
State	0	0	0	0	0	0	0	0	0

Traverse Hazards: None

SUBSYSTEM STATUS:

S/S	Status	Comments
C&N	Nominal	None
MTM	Nominal	None
Power	Nominal	None
Telecom	Nominal	None

NAVIGATION PERFORMANCE:

Nominal

• No constraints to impose on sequence planning

THERMAL PERFORMANCE:

Nominal

• No constraints to impose on sequence planning

COMMUNICATIONS PERFORMANCE:

Nominal

• The rover sent a total of 471 frames, 7 of which were resends, two bad CRCs, 2 timeout errors 1 Rx abort and 22 RX Com Errors. This equated to a link performance of 98.5%
• The lander reported receiving 435 frames, 49 of which were garbled, this equates to a 89.7% link performance on the lander side.
• The rover modem temperature was nominal for cruise configuration and ranged from +4.3 deg C to 6.6 deg C (avg +5.9C) throughout the course of the sequences. Similarly, LMRE temps ranged from -6.8C to -6.1C (-6.2C avg).
• Rover modem power was nominal for standby/receive on battery only: Rx current ranged from 69.6 to 72.5 ma (72.0 ma avg). There was no Tx current telemetry recorded because no number 3 health checks were done.

MOBILITY PERFORMANCE:

Nominal

• No constraints to impose on sequence planning

POWER PERFORMANCE:

Nominal

• No constraints to impose on sequence planning

TELEMETRY VOLUME SUMMARY:

APID	Name	Predicted #Pkts	Actual #Pkts	Predicted #Mbits	Actual #Mbits
4	Health/Status	6	6	0.01396	0.01402
5	Ops/Engr (Low)	125	125	0.04149	0.04250
6	Seq Status	8	4	0.00284	0.00192
7	Error Rep	0	0	0.00000	0.00000
8	Image (Sci)	0	0	0.00000	0.00000
9	Image (Tech)	0	0	0.00000	0.00000
10	Image (Land)	0	0	0.00000	0.00000
12	APXS Results	0	0	0.00000	0.00000
23	Ops/Engr (High)	0	0	0.00000	0.00000
24	Image (Auto)	0	0	0.00000	0.00000
25	Image (Ops)	0	0	0.00000	0.00000
29	Traverse	0	0	0.00000	0.00000
	TOTAL	139	135	0.05829	0.05844

TELEMETRY DISPLAY/PROCESSING ANOMALIES:

• Reed relay indication in Lander telemetry showed reed relay activation for first activation, bu never changed state after that (did not indicate second activation)

Today the Sojourner rover was powered on for the first time in over six months. It has been asleep, conserving its batteries, during the long cruise towards Mars. During the past several months, the rover team has been operating a ground test vehicle identical in almost all respects to Sojourner. Through a series of "Operations Readiness Tests," or ORTs, the test vehicle has performed more than the equivalent of Sojourner's entire primary mission. Experience from these tests has lead to a small set of improvements in the rover's onboard software. These improvements, which have been fully validated during ORTs, were sent to the Sojourner rover today in the form of a command sequence containing software "patches." When the Rover was activated, the patches were loaded onto the rover in response to the first of two command sequences, and then the rover was instructed to shut off. The rover was awakened again, activating the new software. Then the second command sequence directed the rover to perform a self-diagnostic status check, confirming the health of all onboard devices. The Alpha Proton X-ray Spectrometer (APXS) was also activated to confirm that it is operating normally. Finally, the rover was commanded to shut itself down. The rover should next awaken on July 4, after Pathfinder lands on the surface of Mars.