Log Book for February 20, 2008

Engineering Report

Chris Ostafew / Aravind Seeni / Zahra Khan Reporting


Generator/Electricity:

Wendy: not used


Xantrex Inverter/Dynasty Batteries:

Time Voltage (Temp Comp) Load Temp Generator Running?
07:59 23.5 12.9 06 No
16:00 26.3 18.8 11 Yes
17:41 26.6 07.6 11 Yes


Notes/Comments:
Load readings taken from OneMeter.

Ran the 1st backup (diesel, 7500W) until it was almost out of fuel then
switched to the 2nd backup (gas, 3500W).

We were working on the 6 on, 2 0ff cycling of the generator though it
seems the 2 off will be shortened to 1.5 off.


Fuel Status (as of 19:04):

Diesel:

Approximate Reading: empty




Propane Tank:

Approximate Reading: 90% (900 gallons = 3406.9 L)




Gasoline:

Quantity Remaining: 31 gallons = 117.3 L [ -1 gallons since yesterday ]




Oil:

GenSet Quantity: 6 quarts [ no change since yesterday ]

ATV Quantity: 5 quarts [ no change since yesterday ]

[*] V'ger Quantity: 1 quart [ no change since yesterday ]



Water Status:

Outside Potable Water Tank Level: 59.7 gallons = 226.0 L

Trailer Potable Water Tank Level: 15.9 inches from the base

Potable Water Meter Reading: 26094.1 gallons = 98776.6 L
[ +22.5 gallons since yesterday ]

Out to Toilet Meter Reading: 8094.3 gallons = 30640.2 L
[ +10.2 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
centimetres from the base of the tank.


GreenHab:

Crops Watered: no


Crop Condition:
Good.


Observatory:

not used


Transportation:




Kawasaki ATVs

ATV 1
Used: yes
Oil Checked: yes
Fuel Consumed: 0.2 gallon = 0.8 L
Tire Status: Pressures: 2//3/1.5/3.5

ATV 2
Used: yes
Oil Checked: yes
Fuel Consumed: 1.5 gallons = 5.7 L
Tire Status: pressures: 2.3/1/3/1.2

ATV 3
Used: yes
Oil Checked: yes
Fuel Consumed: 0.2 gallon = 0.8 L
Tire Status: Pressures: 2/2/1.5/3


Notes/Comments:
All three ATV's used for EVA. ATV1 = red foot shift ATV2= Green Monstah
ATV3= red hand shift
Tire pressures: Front Left/Front Right/Back Left/Back Right
Seem kind of low - is meter broken? Will compare with other meter
tomorrow.
Green Monstah out of oil. Filled it up - oil meter is hard to read.
Added 35% fuel to hand gear red ATV and 50% to the Green Monstah.



Mars Surface Suits:
Some suits used for EVA. Backpack 1 still broken and helmet 2 mic
switch still broken.

Broken mic switch on helmet three - requesting permission to
investigate.
Air issues in air delivery system of pack one, will investigate
further.




GreenHab:
Inside
Time Temp Hum
17:04 70F 17%
Outside
Time Temp Hum
17:04 45.3F 30%



Data Logger:
Found BoxCar software installed in the hab notebook. The serial cable
extending from the Hobo station has a 9-pin end. However, no respective
cable to connect from the 9-pin to USB port of the notebook was found.
Station data still can't be retained as there is no cable available.


Upgrade Work:
The faulty valve of the potable water tank was replaced. All leaks from
the potable tank have been fixed.


Notes/Comments:
We obtained OneMeter readings using portable unit.