EVA 5 Report
Louise Wynn Reporting

Duration: 16:51-18:26 (1 hour 35 minutes) Participants: Louise Wynn, Bob McNally Equipment: GPS Route:

1. 4250.93N 518.17 E to 4251.75 N 519.12 E
2. 4251.75 N 519.12 E to 4252.833 N 518.595 E
3. 4252.833 N 518.595 E to 4253.67 N 518.62 E
4. 4253.67 N 518.62 E to 4253.427 N 517.866 E
5. 4253.427 N 517.866 E to 4250.93N 518.17 E

Weather: Clear and cold

Maximum distance from Hab: 2.77 km

Objectives/Work Done: This EVA, using the two working ATVs, was my first chance to get accustomed to riding an ATV while wearing a space suit and to learn more about navigating with a GPS unit. My instructor was the indomitable Bob McNally. We followed the route of yesterday's EVA but very hurriedly so that EVA 6 would have at least some time before dark.

Lessons Learned:

1. We had the same experience that yesterday's EVA had of losing contact about 1 km from the Hab when we went behind some hills and lost line-of-sight radio capability.
2. This was especially valuable as there are some waypoints established by previous crews at sites of geological significance, where I would like to make some geophysical measurements. This, along with EVA 4, gave me experience handling instruments while wearing the cumbersome gloves.

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EVA-6 Report
Diego Casa Reporting

Duration: 18:24-19:34 (1 hours 10 minutes)

Participants: Digby Tarvin, Diego Casa

Equipment: ATVs, GPSs.

Route: Same as EVA-5

Objectives/Work Done: This EVA was to provide some practice in GPS navigation on ATVs at night (after twilight).

Weather: Clear, cold night.

Narrative: At the return of EVA-5 Digby exited the airlock, EVA-5 crew entered. Diego was outside since the end of EVA-4. Same route was taken as EVA-5 with ATV #1 and #2. Shortly before departure comm with Diego failed (see engineering report) and alternative comm methods were used (hand signals and voice over helmet contact). Driving and navigating through the waypoints in the darkness with comm problems proved challenging but the mission was successfuly accomplished, returning in about 1 hour.

Lessons Learned:

1. Comm failures can be dealt with without significantly compromising the mission.
2. Driving in the darkness was not a problem in itself, but manipulating the GPS and PTT button are. Improved designs should be easy to find and operate in zero-visiblity conditions (i.e. duststorm, light and/or power failures at night).
3. Very cold fingers aggravate the clumsiness of gloved manipulation of buttons and mechanisms.

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EVA-4 Report
Celeste Gale

Duration: 2 hours 45 minutes

Participants: Diego Casa, Celeste Gale, Kyoichi Sasazawa, Bob McNally, Digby Tarvin, and Louise Wynn

Equipment: camera, rock hammer, GPS, and notebook with waypoints Route: In UTM

1. Waypoint 1 0518.90 4250.93
2. Waypoint 2 0519.09 4250.22
3. Waypoint 3 0518.38 4250.52

Purpose: To train the crew on using UTM coordinates, GPS, space suits, and general familiarization of the immediate area. We were to also investigate what was believed to be a repeater station and record the coordinates.

Weather: Clear, sunny, and warm (46F)

Maximum Distance from Hab: 1.1Km

Summary: The crew members that were less familiar with expedition navigation, took turns navigating to the different waypoints. All navigations were successful. Several rock samples were collected (see geologist's report). We found the repeater station, and decided to take some pictures for the 3D imaging project. This was before we were able to closely look at it, and when we did look at the point we found that it was a rod placed on a peak near the Hab. We were thinking that it was perhaps leftover from a previous Mars crew's experiment. We were able to site the real repeater from a distance (it does have wires attatched to it). Perhaps in a future EVA we will be able to record the coordinates of the real repeater station, which will help us predict where our radios would not transmit well with the Hab.