Crew 275 EVA Report 13Feb2023
EVA # 1
Author: Jeremy Rabineau (Crew Commander)
Purpose of EVA: Training in real-life EVA conditions: getting used to the spacesuits and driving the rovers.
Start time: 10:01
End time: 11:01
Narrative: This EVA was the first one for all three crew members. They used the rovers Spirit and Opportunity to reach Marble Ritual, where they arrived at t+15min. Once onsite, they performed a few tests with radio and tried to do the basic movements that they will have to do in their spacesuits (e.g., kneeling down and standing up) during future EVAs. They then explored the surrounding area walking within 500 meters of the rovers. They found a good location to set up the LOAC and Mega-Ares instruments close to Marble Ritual. The two EVAs dedicated to this set up are planned for 16Feb2023 and 17Feb2023. The corresponding EVA requests will be done one day in advance of each EVA, should the weather allow it. The EVA #1 crew was back to the MDRS at 10:53 and entered the Hab at 11:01, as per EVA request.
Destination: Marble Ritual
Coordinates (use UTM WGS 84): N4251000 E518500
Participants: EVA leader: Quentin Royer (Executive Officer/ Crew Engineer), Marie Delaroche (Crew Journalist), Alexandre Vinas (Crew Astronomer).
Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to Marble Ritual (N4251000 E518500).
Mode of travel: Even if the destination was within 1 km of MDRS, the purpose of this EVA was to train using the rovers, so the crew drove there. Then they walked around this location within no more than 500 meters.
EVA # 2
Author: Quentin Royer (Executive Officer/ Crew Engineer)
Purpose of EVA: Training in real-life EVA conditions: getting used to the spacesuits and driving the rovers.
Start time: 14:30
End time: 15:30
Narrative: This EVA was the first one for the four crewmembers. The rovers Curiosity and Perseverance were used by the crew members after a 5-minute depressurization process. The EVA crew arrived at Marble Ritual 12 minutes later. The four crewmembers started to walk for the first time on a distant Martian soil with their spacesuits.
As they walked away from the rovers, the Crew temporarily lost visual contact with the MDRS station. The EVA leader and HabCom tried to communicate and were still able to do so.
The EVA #2 Crew trained walking, manipulating radios (plugging, unplugging) in order to make sure they will be able to do it in case of an emergency in the future. They also tried to draw the landscape in front of them on a notebook with their gloves.
At t+40 minutes, the Crew headed back to the rovers, and reached them 10 minutes later. The EVA #2 Crew arrived at the station at 15:23, entered the airlock and entered the Hab at 15:30, as per EVA request.
Destination: Marble Ritual
Coordinates (use UTM WGS 84): N4251000 E518500
Participants: EVA leader: Jérémy Rabineau (Crew Commander) / Alice Chapiron (Crew Scientist) / Adrien Tison (Crew Botanist) / Corentin Senaux (Health and Safety Officer)
Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to Marble Ritual (N4251000 E518500)
Mode of travel: Even if the destination was within 1 km of MDRS, the purpose of this EVA was to train using the rovers, so the crew drove there. Then they walked around this location within no more than 500 meters.