Log Book for February 19, 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?
09:00 23.5 15.8 3 Yes
12:42 25.7 06.3 7 Yes
18:35 22.2 18.2 9 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 off cycling of the generator though it
seems the 2 off will be shortened to 1.5 off.


Fuel Status (as of 18:57):

Diesel:

Approximate Reading: empty




Propane Tank:

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


Notes/Comments:
Gas man came today - 543.3 Gallons of propane transfered. Tank filled
from 30% -> 90%.



Gasoline:

Quantity Remaining: 32 gallons = 121.1 L [ no change 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: 67.8 gallons = 256.7 L

Trailer Potable Water Tank Level: 70.5 inches from the base

Potable Water Meter Reading: 26071.6 gallons = 98691.4 L
[ +84.2 gallons since yesterday ]

Out to Toilet Meter Reading: 8084.1 gallons = 30601.6 L
[ +4.1 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 water tank measurements are in units of centimetres
from the base of the tank. A blown 5A fuse was replaced in the GreenHab
for the TST filling motor. Verified for blockage and let the motor run
again.

To let the GreenHab's water cycle loop working normal and supply of
oxygen for the plants some fresh water was poured into one of the
recycling tanks. We would repeat this again tomorrow.


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: OK

ATV 2
Used: yes
Oil Checked: yes
Fuel Consumed: 0.2 gallon = 0.8 L
Tire Status: OK

ATV 3
Used: yes
Oil Checked: yes
Fuel Consumed: 0.2 gallon = 0.8 L
Tire Status: OK


Notes/Comments:
All three ATVs used for crew training. We plan on repairing the box
containing first aid and tools.



Mars Surface Suits:
All 6 suits used in 1.5hr training EVA.

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
18:30 66.0F 15%
Outside
Time Temp Hum
18:30 40.5F 20.6%





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