EVA Report
Date: 7 Dec 2012
Written by: Lisa Stewart and Paula Crock
(Note: Names of features in report are crew specific)
EVA Sol 7 A
Transit Mode: Walking
Duration: 2h 40m 10:01 - 12:41
Distance: 4.34 km
Crew & Equipment
Leader: Lisa Stewart, Suit 6
XO & HSO: John Reynolds, Suit 1
Waypoints
1 519026 4250747 Table Top
2 519663 4250250 Scallop Hill
3 519362 4250196 Teetering Rock
Est distance: 3.2 km
Est duration (not counting stops): ~1.25 h, at 2 kph
Est duration (counting stops): 2 h
Objectives
1. Circumnavigate Teetering Rock and identify reasonable ascent routes.
2. Investigate Scallop Hill
Results
Identified two viable ascent routes on the western slope of Teetering Rock. However, south and east slopes are steep, soft and do not appear practicable for ascent. Neighboring mound to the east contains large north facing caves. No animal tracks identified in this area. Following water gullies around to the west back toward the Hab revealed what appeared to be a large petrified tree approx. 3 x 1 meter. Samples collected. Evidence of notable and recent human and animal activity also identified within eastern hab line-of-sight.
Lessons Learned
1. Helmet visibility issues need to be more effectively addressed.
2. We are not alone.
EVA Sol 7 B
Execution Date: Sol 7 / Dec 7 PM
Transit Mode: Walking
Duration: 2h 35m 13:57 - 16:32
Distance: 5.4 km
Crew & Equipment
* Leader: Habib Palenfo, Suit 4
* XO & Journalist: Dan Wilcox, Suit 3
* HSO: Paula Crock, Suit 2
Points of Interest
1 518980 4249920 Moguls
2 519362 4250196 Teetering Rock
3 519026 4250747 Table Top
Objectives
1. Investigate small area of mogul-sized hills
2. Ascend Teetering Rock using data from EVA Sol 7 A
3. Determine if Teetering Rock site is suitable for future instrumentation
3. Determine if Table Top site is suitable for future instrumentation
Results
Dan successfully led us to the mogul-sized hills near 518980 4249920 using orienteering. While there we discovered interesting geology and topology. From the mogul-sized hills we went to the hill with the teetering rock at 519362 4250196. We circumnavigated this hill and then Wilcox walked to the top to assess the site for instrumentation. We did not have time to go to the tabletop-like feature at 519026 4250747 so we returned to the Hab.
Lessons Learned
1. Given basic navigation skills, GPS devices are more convenient and more accurate to use than maps.
2. The top of the teetering rock hill may not be good for instruments because the top is very narrow and it may be challenging to anchor instruments properly.
3. The assessment of where to ascend the teetering rock hill provided by EVA A was accurate.