Operations Report – December 5th

Crew 184 Operations Report 12/05/2017


Name of person filing report: Akash Trivedi

Non-nominal systems: Water (pump/lines – static to loft), generator
failure, sudden loss of data

Notes on non-nominal systems:  Water: tanks from static to loft not
transferring due to speculated frozen pipe or blockage. Waited until
10am as per protocol to see if frozen pipes thawed. At 10am, still
frozen. Waited until 12pm for sunlight to be in contact with pipes to
see if thaws. After the meeting at lunch, we learned that a plug by
the static tank needed to be seated. This allows heating along the
pipes. Once plugged we waited some time, and pump was operational
again at around 3pm. Anomaly resolved.

Generator: Noticed generator off at 0900 having failed during the
night. Turned on and seemed to be operating nominally. Returned to
check up on it at 1000, and noticed a coolant leak from the radiator.
Generator turned off and leak corrected by tightening the antifreeze
cap. Generator turned back on and checked status on power console –
seems to not be doing the charging as it’s on “absorb” and SOC not
increasing despite minimal hab power usage. After Lunch meeting, we
monitored thegenerator closely and at sunset the SOC returned to 100%.
Will continue to monitor closely, but power is good at this time.

Loss of internet data: Data check was conducted at 0845 when it was
approximately 800MB, and an hour later, this dropped to zero. Reason

Generator (hours run):  Unknown due to night time failure

Solar— SOC % (Before generator is run at night) 4% at 0900, 14% at
1000 (when coolant leak discovered), static 9% on “absorb charging”
with minimal hab usage and generator powered on

Diesel – 48%

Propane –  79 percent volume

Ethanol Free Gasoline (5 Gallon containers for ATV) – 1.25 gallons

Water (trailer) – 600 gallons

Water (static) – 450 gallons

Trailer to Static Pump used – No

Water (loft) – Static to Loft Pump used – Yes

Water Meter: 46 gallons

Toilet tank emptied: Yes

ATV’s Used: Honda ATV, Yamaha 1

Oil Added? No

ATV Fuel Used: 1.25 gallons

# Hours the ATVs were Used today: 00:45

Notes on ATVs: Yamaha 3 Rear right tire is still wobbly, EVA team
assessed and determined it will require. Photos will be provided in
overall Sol 4 package for awareness and review.

Deimos rover used: Used

Hours: 00:45

Beginning charge: 100%

Ending charge: 100%

Currently charging:Yes

Sojourner rover used:  ASSIGNED TO DIRECTOR


Beginning charge:

Ending charge:

Currently charging:

Spirit rover used:  Not used


Beginning charge:

Ending charge:

Currently charging:

Opportunity rover used:  Not Used


Beginning charge:

Ending charge:

Currently charging:

Curiosity rover used:  Not Used


Beginning charge:

Ending charge:

Currently charging:

HabCar used and why, where?  No

General notes and comments: Multiple non-nominal systems!!!

Summary of internet: Sudden anomalous data loss – see above

Summary of suits and radios: All nominal based on last usage

Summary of Hab operations: Loft water tank almost empty, multiple
non-nominal systems

Summary of GreenHab operations:  All nominal

Summary of ScienceDome operations: All nominal

Summary of RAMM operations: Not Operational

Summary of health and safety issues: No problems now that water, heat,
and power are back.

Questions, concerns and requests to Mission Support: See above on
non-nominal systems. Lack of training and relevant manuals for
troubleshooting significant issues in mission critical systems. Poor
insulation of static tank to loft tank pipes – could lead to pipe

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