Crew 218 EVA Report 30Dec2019

[title EVA Report – December 30th]

[category eva-report]

EVA #: 4

Author: Shefali Rana

Purpose of EVA: weather observation project; EVA and EMU evaluation project

Start time: 10:10

End time: 11:22

Narrative: Luz Ma and Shefali took Curiosity and Spirit up to the Galileo Rd intersection and took observation readings for weather project. The EVA duration was about one hour. After being back in the habitat, Luz Ma and Shefali filled questionnaires for the EVA and EMU evaluation projects.

Destination: Galileo Rd

Coordinates (use UTM NAD27 CONUS): 12S 519050, 4252000

EVA Participants: LuzMa Agudelo, ENG; Shefali Rana, HSO

Road(s) and routes per MDRS Map: Cow Dung Road

Mode of travel: Driving, then work in the field and walking

EVA #: 5

Author: Cesare Guariniello

Purpose of EVA: crew decision-making evaluation and radio measurements (during transfers); seismometric measurements to evaluate subsurface layers (once at destination); EVA and EMU evaluation (once back in habitat)

Start time: 13:15

End time: 15:59

Narrative: After loading on the rovers the necessary equipment for the research projects, we began driving along Cow Dung Road. The road is well marked, with streams of icy water melting down. Snow is completely melted in certain point and about one inch deep on others. The ride had been very smooth and safe, and the rovers made it to the intended destinations with good residual charge. Ben took radio measurement along the road, as a passenger on Curiosity rover. Once at destination, we began to slowly prepare Pat’s experiment. This required us to extend a measuring tape for about 30 meters and, after having removed some snow, place 24 sensors one meter apart from each other. The seismometric sensors, connected to a laptop, record the propagation of seismic waves generated by a hammer hitting a metal plate that we laid on the ground at various locations along the sensor network. The preparation took about 25 minutes and gave us a good idea of the challenges faced by astronauts working in EVA. After the experiment, we walked the first few feet of Brahe Hwy before heading back. On our way back, Ben took more radio measurements south of the intersection with Galileo Rd and close to the habitat.

Destination: Brahe Hwy at Glistening Sea

Coordinates (use UTM NAD27 CONUS): 12S 517750, 4254700

EVA Participants: Cesare Guariniello, CMD; Pat Pesa, GEO; Ben Durkee, JOU

Road(s) and routes per MDRS Map: Cow Dung Road to Brahe Hwy intersection (Glistening Sea and White Moon area)

Mode of travel: Driving and walking