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Jim Erickson
Future Issues:
Sol 12
- Only a 34 meter antenna will be available for Sol 12. This will impose
a future data limitation
Sol 7/8 Report:
Downlink Report (Sol 6):
Downlink Status:
- Only a partial receipt of the mission success pancam
Rover Status:
- Assumed ok, except for elevated temperatures
- Rover anomalies: Elevated temperatures (45 C versus expected 36C) on
Sol 6
Uplink Sol 7
Planning Notes:
- This is the first activity day of the August 2002 FIDO test.
Assumptions are that this is the first day off of the lander where science
is operating on the nominal tactical timeline (i.e., not in egress mode).
- We have taken the first 360 pan while on the lander, but have
requested from HQ whether the received data meets the success criteria.
Note that this has exposed an issue where Dave Lavery believes that HQ
will need to sign off on each mission success criteria satisfied - They
may need to be in the real time loop. Dave agreed to think abut this some
more.
- Our first "first time activity" came up immediately. FIDO has never
pointed straight up for an IPS observation. Science took it out of the
sequence on their own due to data limitations, but we may have had to
scratch it anyway. The Mission Manager asked for that activity to be
simulated for use later in the mission (commands to be built, validated,
and the ideas to be approved by the field team).
Engineering/Move Activities Planned:
- Expanded engineering telemetry is being taken on Sol 7 to help with an
issue with higher than expected temperature measurements seen on Sol 6 and
before. This takes up an extra 0.5 mbtg and 10 minutes of rover operation
time (out of 90).
SOWG process:
- Lead rover engineer needs to report on the Rover state of health and
any engineering restrictions (had to be prompted to discuss limitations
because of elevated temps).
- Few Theme groups had their acts together enough to turn in completed
observations plans. A lot of it was pointing at the navcam data and saying
they want something "here". This should improve with time.
Sequence Build and Validate process:
- Sequence build and validation process went nominally, but came close
to running out of integration time due to above mentioned theme group
issue. Close to the end of the constraint checking time a concern that we
might be close to the
- Sequence approved for uplink at 10:25am.
Progress toward Mission Success:
- HQ accepted the mission success Pancam
Sol 8
Downlink Report (Sol 7):
Downlink Status:
- No engineering data was received in the DTE due to an antenna stow at
the DSN. Some science data was transmitted, but not sufficient to
specifically determine the state of the rover arm and mast.
- UHF data received during the Sequence build and validate period showed
that the arm was stowed, and the Mast was not stowed.
Rover Status:
- One anomaly on the Mast (a FIDO related issue, not MER), and maybe a
second one on the CMI
- Rover anomalies: Elevated temperatures (45 C versus expected 36C) on
Sol 6
- The Mast did not stow properly after the Sol 7 sequence. Data analysis
is ongoing.
- The CMI seems to have returned only one image. Analysis is ongoing.
Planning Notes:
- Going in position is as follows - we believe we could receive UHF data
that would allow us to determine the Rover state of health and proceed
with a drive sequence. We will be building an engineering only sequence
that stows the pancam mast, and stows the arm. We will also plan a touch
and go drive in the event that the UHF data positively indicates a
successful sequence execution of the Sol 7 plan.
Engineering/Move Activities Planned:
- On the successful timeline, there will be a 20 Meter drive towards a
location called Kaibab.
- On the unsuccessful timeline, we are in the re-transmit and stow plan.
SOWG process:
- Proceeding with a fluid plan for science, this will be an interesting
Sequence process.
Sequence Build and Validate process:
- Boy was it an interesting Sequence process! Partway through the
Sequence development, the UHF data came in. It reported that the ARM had
operated successfully, but the Mast had not completely stowed. A real time
decision was made to prohibit any mast based observations, put a new mast
stow into the beginning of the sequence. If the mast still did not
successfully stow, the rest of the sequence will error out, and the
contingency sequence will execute. Otherwise, we will stow the mast, and
drive 20 meters towards Kaibab.
- Sequence approved for uplink at 3:25am.
- As a side note we have a new tested capability to do atmospheric
observations through the use of the "cmd_pancam". This command is yet to
be used.
Progress toward Mission Success:
- The PI will attempt to convince HQ that we have successfully
characterized the landing site.
Recommended Process Improvements (Cumulative):
- During the sequence approval meeting, the lead rover engineer (Ashitey)
needs to lead the meeting while the uplink developer is responding to
questions.
- The minimum set of questions for the Sequence approval meeting should
include:
Are there any first time activities planned, and what simulations were
done to verify the ability of the vehicle to perform the prospective
activity?
Are all engineering activities needed for this sequence included?
Have all constraints been checked and satisfied?
Are there any other issues for this sequence?
- We have to figure out how to do anomaly resolution during the process.
This is a FIDO support issue (I think). We don't really have any
engineering teams to do anomaly resolution during the same time that we
perform the tactical process.
Continuing Issues for Sol 9 Mission Manager:
- We have two or three anomalies, the Mast, the elevated temperatures,
and the possible CMI issue. We need to get the temperature analysis done,
and we need to both finish analyzing the UHF data we got on the mast
performance and get the results of the Sol 8 activities. The UHF Mast data
analysis should be complete by the beginning of Sol 9.
Science Summary:
http://odyssey.astro.cornell.edu
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