Crew 315 Operations Report 28-04-2025
SOL: 8
Name of person filing report: Michael Andrews
Non-nominal systems: Catalytic Heater, Two Piece Space Suits
Notes on non-nominal systems:
· (Bonus project) The catalytic heater near the exercise bike in the habitat does not work. It’s an engineering project to see if this can get properly started during this mission. Barring any more impactful repairs needed, this project will be worked tomorrow.
· (New Project): Some of the two-piece suits have slight variations in functionality. One of the suit’s battery displays don’t work, and another one has a rather noisy fan. I’d like to focus on these two tomorrow to see if I can fix them like I did with suit #10 today.
ROVERS
Spirit rover used: No
Hours: N/A
Beginning charge: N/A
Ending charge: N/A
Currently charging: No
Opportunity rover used: No
Hours: N/A
Beginning charge: N/A
Ending charge: N/A
Currently charging: No
Curiosity rover used: Yes
Hours: 316.1 hours (1.3 hours used)
Beginning charge: 100%
Ending charge: 85%
Currently charging: No
Perseverance rover used: Yes
Hours: 354.5 hours (1.3 hours used)
Beginning charge: 100%
Ending charge: 81%
Currently charging: Yes
General notes on rovers: None
Summary of Hab operations: We performed two EVAs today, including one of which was focused on repairing the exterior surfaces of the hab tunnels. We had cereal for breakfast, leftovers for lunch, a frito/pasta/chili concoction for dinner.
Water Use (please use both methods to estimate water usage)
Time of measurements: 1845
1) Per formula: 26.4 gallons
2) Smart Home Dashboard: 24.5 gallons
Water (static tank, remaining gallons): 252.66 gallons
Static tank pipe heater: No
Static tank heater: No
Toilet tank emptied: No
Summary of internet: Used to complete reports, learn languages, share team photos via Google drive, researching projects, and complete professional work.
Summary of suits and radios:
· EVA 14: Suits 7, 10 and Radios 1, 2
· EVA 15: Suits 7, 8, 9 and Radios 2, 3, 4
Summary of GreenHab operations: Watered plants and fungal projects, harvested chives and tomatoes, started to review the closeout list for GreenHab teardown.
WATER USE: 10 gallons
Heater: Yes
Supplemental light: 1900-2200
Harvest (name, weight in grams): 5g chives, 20g tomatoes
Summary of ScienceDome operations: Scanned an additional rock from Robert’s Rock Garden.
Dual split: Off
Summary of RAM operations:
· Space Suit: I performed a bit of troubleshooting and realized that all suits were functional and nominally charging, except for Suit #10. After opening up all one-piece suits, I realized that Suit #10 had an extra wire to power an embedded EVA Link unit (Astro #10). I removed that unit and unlinked the wire from the circuit, and it still had a weaker powered fan than the other suits. I finally swapped the Suit #10 battery with a fresh one and resolved the issue. All other one-piece suits function similarly. The dead battery was labeled as such and added to the existing dead 12V batteries in the space suit room.
· ScienceDome Radio Charger: I tried many different techniques to repair the charger but had no luck and ultimately returned it to the ScienceDome with a “Broken” tag taped on the front. I disassembled the unit and swapped power cords with functioning chargers and isolated the issue to the circuit board of the charger. I even re-soldered some components that I perceived as loose with no success. All work was done in the RAM, so no tools were removed.
· Showerhead Leak: After investigating the leaks, it was discovered that the three threaded ports were leaking. Plumber’s tape on each thread – along with cleaning the most upstream seal – removed all leaking. This will be a minor reduction in water consumption for the rest of the mission. A good amount of plumber’s tape was removed, and the roll was returned to the RAM afterwards.
· Golf Club: Crew Artist Gagnon has requested a 9-iron golf club to recreate a famous Apollo photo of golfing on the moon. I was able to craft a club out of a broom handle, a wall hook, and duct tape – although it does look more like a putter to me. I will return all these components to their respective locations after the photo is taken on a future EVA.
· Tunnel Zip Ties: I used 5 zip ties on the interior of the tunnel, and then an additional 10 on the exterior to secure the outer tarps to the tunnel mesh better. Snips were taken on EVA and returned.
Summary of any observatory issues: None
Summary of health and safety issues: None
Questions, concerns and requests to Mission Support: None