EVA Report – April 25th

Crew 280 EVA Report 25-04-2023

EVA #9

Author: Ariadna Farres (HSO & Scientist)

The EVA had the following goal:

Collect some iron-containing rock samples to evaluate its use for Martian batteries by Neus Sabate.

Start time: 2:35 PM

End time: 5:10 PM

Narrative: Before starting the EVA, we received a call from mission support advising us of the possibility of rain in the next few hours. During the whole EVA the astronauts checked the weather, which ended up being windy but with no signs of rain and the mission could be completed.

After performing 5 minutes of depressurization in the front airlock, the EVA team took Spirit rovers and headed White Rock Canyon and Barrainca Butte area to collect iron-containing rocks as suggested by Mission Support Dr. Shannon Rupert.

The EVA team drove very slowly along Cow Dung Road to decrease the discharging rate of the battery rovers. Once they reached the selected area they observed a larger amount of rocks around Barainca Butte. They spent about an hour exploring the area and collecting rocks. At 4:30PM the crew decided to head back to the base, which they reached at 5:10PM. Before entering the Hab, they followed the 5-minutes pressurization protocol.

Destination: Barainca Butte

Coordinates (use UTM WSG 84): 520000 E, 4248000 N

EVA participants: 2: Ariadna Farrés (HSO and EVA Leader) and Neus Sabate (Mission Specialist).

Road(s) and routes per MDRS Map: Drive south on Cow Dung Road 0110 and stop after the junction with Watney Road.

Mode of travel: Drive south on Cow Dung Road 0110 and stop after the junction with Watney Road. Walked around Barainca Butte. Then walk around no farther than 1500m from the rovers.

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