Log Book for February 25, 2008
Engineering Report
Chris Ostafew / Aravind Seeni Reporting

Generator/Electricity:
Wendy
Hobbs Meter: 3250.7 hrs [ +20.9 hrs since yesterday ]
Voltage: 117 VAC
Frequency: 60 Hz
Oil Level: 7/8
Oil Pressure: 30 PSI
Water Drained: yes

Notes/Comments:
1/2" Hydraulic hose was installed today from valve to Wendy using the
following connections: Valve -> 1/2" pipe connection of hose -> hose
-> 1/4" flare connection of hose -> 1/4" flare to 3/8" pipe -> 3/8"
pipe to 1/2" pipe -> 1/2" pipe with 90 degree bend -> 1/2" pipe to 3/8"
pipe -> Wendy's aux fuel pump.
The 90 degree bend was required to prevent excessive stress on
"wendy-end" of hose as the hose was not long enough for a
perpendicular installation to pump.


Xantrex Inverter/Dynasty Batteries:
Time Voltage (Temp Comp) Load Temp Generator Running?
16:17 24.2 07.2 11 No
18:08 26.3 08.8 11 Yes
18:45 26.3 08.8 11 Yes

Notes/Comments: Wendy was shutdown in the AM for installation of hydraulic hose and also in aft for a break.

Fuel Status (as of 18:45):
Diesel: Approximate Reading: 7/8
Propane Tank: Approximate Reading: 85% (850 gallons = 3217.6 L)
Gasoline: Quantity Remaining: 65 gallons = 246.1 L [ no change since yesterday ]
Oil: GenSet Quantity: 5 quarts [ no change since yesterday ]
[*] ATV Quantity: 3 quarts [ no change since yesterday ]
[*] V'ger Quantity: 1 quart [ no change since yesterday ]

Water Status: Outside Potable Water Tank Level: 17.5 gallons = 66.2 L
Trailer Potable Water Tank Level: 6.2 inches from the base
[**] Potable Water Meter Reading: 26180.8 gallons = 99104.8 L
[ +9999996.1 gallons since yesterday ]
Out to Toilet Meter Reading: 8141.5 gallons = 30818.8 L
[ +8.4 gallons since yesterday ]
In to GreenHab Meter Reading: 7823.0 gallons = 29613.2 L
[ no change since yesterday ]
Dishwasher Runs: 0

Notes/Comments: Outside potable and trailer water tank measurements are in units of inches from the base of the tank.
As of noon, it was not possible to pump water from the ground tank to
the hab. As a first stage, we removed the kink a the hab tank by
inserting 90 degree fitting in the line. Flow improved only slightly.
Several steps were taken to remove any air from the line and by the end,
flow to the hab tank was significantly better and it took only a few minutes to
refill the tank.

GreenHab:
Crops Watered: no
Crop Condition: Good.

Observatory: not used

Transportation: Kawasaki ATVs
ATV 1
Used: yes
Oil Checked: yes
Fuel Consumed: 1.6 gallons = 6.1 L
Tire Status: OK

ATV 2
Used: yes
Oil Checked: yes
Fuel Consumed: 2.0 gallons = 7.6 L
Tire Status: OK

ATV 3
Used: yes
Oil Checked: yes
Fuel Consumed: 1.6 gallons = 6.1 L
Tire Status: OK

Notes/Comments: ATVs were used in two EVAs today.

Mars Surface Suits:
Suits S-1, 1, 2, 4, and 5 were used. No issues to report.

Appliances: Turns out there was a loose fuse for the hot water tank - we have hot water again!
The kitchen sink faucet is/was leaky. We disassembled it and cleaned
the seals and it no longer leaks (?). Will see in time!

GreenHab:
Inside
Time Temp Hum
18:05 73°F 16%
Outside
Time Temp Hum
18:05 49.8°F 16%

Upgrade Work: Hydraulic hose installed to wendy. Found power cable for ACER laptop (NASA?). Added 90 degree fitting at hab potable water tank to prevent
kinks (fitting was boiled prior to installation). Re-started water heater. Verified installation of sunglass shades on hab cams located in observatory - experimenting with brightness/contrast function of software to get a better picture.