EVA Report – March 3th

Crew 275 EVA Report 03-03-2023

EVA # 15

Author: Jeremy Rabineau (Commander and EVA Leader)

Purpose of EVA: The purpose of the EVA was to perform the photogrammetry experiments with the 2D map.

First, as it was on the way to Candor Chasma, we changed the batteries and collected the data of MegaAres, Purple Air, and the Field Mill. We also reinstalled the LOAC.

We then parked at North Ridge and explored the place, so that we could be filmed there by the BBC.

We then went to Candor Chasma where the two subjects of the experiment tried to find some specific checkpoints, while the operator of the experiment onsite took time measurements and drew their trajectory on a map. In addition, the two subjects were equipped with a step counter.

Start time: 09:01

End time: 12:49


09:01 Airlock closed.

09:06 Exiting the airlock.

09:14 The EVA Crew leaves the Hab with the rovers (Opportunity and Perseverance).

09:16 Rovers parked next to the location of the atmospheric instruments. The crew arrives onsite 3 minutes later.

09:28 Battery and SD Card of Purple Air changed.

09:29 LOAC installed and measurement launched.

09:33 Battery of the Field Mill Changed and measurement launched.

09:36 Data retrieved from MegaAres and battery changed.

09:38 Leaving with the rovers to North Ridge.

09:47 Arrival at North Ridge. Walking around the area so that the BBC can shoot beautiful videos.

10:16 The BBC crew is leaving, while the EVA crew starts walking towards Candor Chasma.

10:45 Arrival at the entrance of Candor Chasma.

11:47 All 10 checkpoints have successfully been identified by the two subjects of the experiment. Walking back towards Gateway to Candor.

12:29 EVA crew back at the rovers and driving back towards the MDRS.

12:40 Both rovers parked at the MDRS.

12:43 EVA Crew back to the main airlock.

Destination: First we stopped where the MegaAres and the METEO station are located, i.e., between the Hab and Marble Ritual; then we stopped at North Ridge; finally we went to Candor Chasma.

Coordinates (use UTM WGS 84): N4251000 E518000, N4252000 E519000, and N4251000 E521500

Participants: EVA Leader: Jeremy Rabineau (Crew Commander & Subject), Alexandre Vinas (Crew Astronomer & Subject), Quentin Royer (Crew Engineer & Operator)

Hab Com: Alice Chapiron (Crew Scientist)

Road(s) and routes per MDRS Map: Cow Dung Road until the intersection with “Gateway to Candor”, we then walked close to North Ridge, and then we went eastwards until Candor Chasma for an estimated 2.5 km from the rovers. (See map attached)

Mode of travel: Driving and walking.

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