EVA Report #4 – April 15th

Crew 245 EVA Report 15-04-2021

EVA #4

Author: Shayna Hume, Executive Officer

Purpose of EVA: Science & Operations EVA. Firstly, we wanted to take soil samples at a ridge geological location, and we wanted to identify an emergency shelter location at the same.

Start time: 09:30 nominal.

End time: 12:30 nominal, 11:30 actual after a return from inclement weather.

Narrative: We left for the EVA promptly, Hume and Hariharan on rover and Hernandez on ATV 1. After a brief time, Hume identified a honk behind us, and we were able to pull to the side of the road and notice a “breaking sim” Truck behind us, trying to pass us. They did so. We continued and quickly arrived at the stopping coordinates on the road. We found a smooth path down to what seemed a streambed adjacent to the ridge we were targeting. We immediately identified an emergency shelter location and took notes on it. After that, we found three soil locations on the ridge itself. Upon seeing darker clouds, we immediately began to head back. By the time we were at the vehicles, the wind was extremely high. When we got back into radio range, we found out that the Habcomm had already been asked to emergency return us to shelter. We were back and done with the 5-min airlock duration by approx 11:30.

Destination: Cowboy Corner Local Area

Coordinates (use UTM NAD27 CONUS): 12 S 0518905 UTM 4253147. Enter to this location from 12 S 0518778 UTM 4253192

Emergency Shelter Location: 12 S 0518771 UTM 4253195

Soil Sample #1: 12 S 0518887 UTM 4253145

Soil Sample #2: 12 S 0518884 UTM 4253129

Soil Sample #3: 12 S 0518895 UTM 4253134

Participants: Hume, Hernandez, Hariharan.

Road(s) and routes per MDRS Map: Cow Dung Road North to the stopping point on the road, then walked 400m East to science location. Explored local area around science location.

Mode of travel: Rover and ATV #1. Rover began at 100% battery and 201.3 hours, and went to 96% battery and 201.8 hours.