Sequence 51010C:

• Downlink data started from command 10131
• Received telemetry for commands 10131 to 10251 with some missing command in APID 4; 10162 (Commanded Level 3 Health Check)
• Vehicle healthy
• No critical errors, six advisory messages indicating attempted phase changes (1D02), which are expected with accels forced bad
• EOD imp image specified for end-of-traverse location, and since the traverse sequence (51110E) was never executed, rover is not in field-of-view
• Received APXS measurements successfully, and looked good in general according to the APXS team, however some channels at the high end of the spectrum did not clear properly. This is attributed to (according to the APXS team) insufficient time after the APXS cycle start command to flush the channel counts before turning off the APXS (by the turn-off device command). Since a sequence which would execute a second APXS measurement could not be uplinked in time to be performed during sol 12 night time ops, a decision to perform one on sol 12 is pending acceptance of received APXS data.
• Performed 4 MAE experiments
• Received a number of retransmit packets (8068,8106,8107,8108, and 8109)

• Continue to request following data:
• ALL APID 5 packets transmitted on Sol8 and Sol 9
• APXS Results (APID 12): 4019 (Should have been received Sol5, Pass 2)
• Image (APID 25): 5525
  • Second occurance of this command from second running of sequence 50520
  • Missing packets 52 thru 68 of image
  • Packet 51 SCET: 1997-07-10T06:44:18:448
  • Packet 59 SCET: 1997-07-10T06:46:22:449
• Image (APID 8): 6119
  • Missing packet 1
  • Packet 0 SCET: 1997-07-10T05:38:49:439
  • Packet 2 SCET: 1997-07-10T05:38:58:439

• New packets missing on sol 10 pass are:
• Image 10052 missing packet 7, SCET 1997-07-14T05:51:19.29
• Image 10059 missing packet 4, SCET 1997-07-14T05:55:08.294
• Image 10060 missing packets 0, SCET 197-07-14T05:55:37.294
• Image 10065 missing packets 1, SCET 1997-07-14T05:56:53.294
• Image 10119 missing packets 2 through 28, SCET 1997-07-14T07:13:46.306

• For Sol 11, did not receive 10162 Health Check Level 3; request retransmit APID 4

Proceed with nominal sequence for either APXS measurement or traverse

Operational Constraints

1. Insert longer wait (60 seconds) between APXS cycle start command and APXS turn-off command (turn off devices)
2. See Navigation and Control Detailed Report (near end of this report) for operational constraints for planned Yogi-egress and traverse
3. Disable auto shutdown (to limit battery usage).
4. Set Modem Heat to 10 minutes.
5. Set Modem Reheat to 5 minutes.
6. Set alarm based wakeup on morning of Sol 12 for 07:00 LST
7. Perform Read Memory just before last downlink session on sol 12
8. Force Fail Z accelerometer
9. Force Fail Y accelerometer
10. Do NOT change X accelerometer failure counter (i.e., leave enabled)
11. Disable Auto-Heat WEB
12. Perform Time Sync just prior to EOD shudown.
13. No WEB heating required overnight

Engineering Request

1. Install APIDs 6 and 7 in the DPT as highest priority

Operational Constraints (General)

1. Perform WEB heating on days of low activity (i.e. no traverses) from 12:00 (noon) to 15:00 MLST with temperature setting at 30 deg

SEQUENCE EXECUTION STATUS:

Execution:	Nominal
State:	Executing
Wakeup:	Alarm Clock, 1997 195 SOL 11 07:14 LTST
Crit Errors:	None

Executing sequence 51010C.

VEHICLE STATE: (AS OF COMMAND: 10251, Sync Clock SCET: 7/15/97 06:11 )

Mission Phase:	Primary
Mode:	Running
Config:	APXS on Yogi
	Contacts on upper left and bottom (APXS)
Power:	Nominal
Device Status:	Y Accel Forced Bad
	Z Accel Forced Bad
Temp (Internal):	Nominal
Temp (External):	Nominal
Temp:(Modem):	Nominal

---

   Parameter    Initial    Final    Parameter     Initial  Final
----------------------------------------------------------------
X Position (m)   +4.373     +4.373   LBogey (deg)    -0.88     -0.96
Y Position (m)   -3.397     -3.397   RBogey (deg)    -1.92     -2.00
Heading  (deg)   212.5       212.5   Diff   (deg)    -1.52     -1.44

Pitch    (deg)    +4.7      4.7  (+ Pitch -> Front down)
Roll     (deg)    +8.3*     8.3  (+ Roll  -> Roll to Starboard)

ADM Pos  (deg)     -48.64   -48.64

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

* potentially suspect due to Y accel failure

BATTERY STATE/USAGE

              Total         Battery   Remaining (Amp*hrs)
Category    Allocation      Initial    Final    *Predicted
--------------------------------------------------------------
Operations      10           7.390      7.200     7.200
Science         10           6.200      5.900     5.900
Technology      10           9.800      9.800     9.800
--------------------------------------------------------------
Total           30          22.390     22.900    22.900

* at completion of sequence 51010B.

	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	0	0	0	0	0	0	0

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

SUBSYSTEM STATUS:

S/S	Status	Comments
C&N	Off-Nominal	Suspect Y and Z accels
MTM	Nominal	None
Thermal	Nominal	None
Power	Nominal	None
Telecom	Nominal	None

NONE

DATA VOLUME SUMMARY (BY APID)*

APID   #PKTS     #BYTES    #Mbits
----------------------------------
  4       15      4399     0.03519
  5       77      3200     0.02560
  6        6       360     0.00288
  7        6       240     0.00192
  8      110    197868     1.58294
  9       75    149289     1.19431
 10        0         0     0.00000
 12       12     12840     0.10272
 23        0         0     0.00000
 24        0         0     0.00000
 25        0         0     0.00000
 29        0         0     0.00000
----------------------------------
         301    368196     2.94557

*All data downlink on Sol INCLUDING retransmitted data.

NAVIGATION PERFORMANCE:

No Traverses during this sequence. Following constraints still apply:
• - Y and Z accels are still FORCED BAD
• - Retract APXS sequence: Move away from Yogi for 20 cm before fully retract the APXS mechanism then drive away.
• - Use risk level 1 for driving if using the move command and Y, Z acces are FORCED BAD
• - Use risk level 2 for driving if using the go waypoint command and Y,Zaccels are declared OK.
• - Clear errors before put the APXS on ground (just in case the driving gets errors from the accels, the measurement is still performed!)

THERMAL PERFORMANCE:

All S/S components performed normally

COMMUNICATIONS PERFORMANCE:

All Subsystem components performing normally

Telecom subsystem nominally; communication efficiency at 65% for Rover radio and 77% for LMRE radio

MOBILITY PERFORMANCE:

All subsystem components performing normally

POWER PERFORMANCE:

All subsystem components performed nominally

• APXS data did not show up in DMD or Labview displays via real time feed

Today the Sojourner successfully returned spectral data from the rock dubbed 'Yogi'. The Rover will remain at this vicinity until the quality of the spectrum can be confirmed. The vehicle remains in good health.