Eva Report
05/08/2013
Douglas Trent
Eva Number:
5
Eva Date:
05/08/2013
Time Slot:
earlyPM
Purpose:
The objective of EVA #5 was to test the communication repeater,
perform ATV training, and perform navigation training. The EVA team’s
destination was 12S 0518875 E 4252815 N. The team would be taught the
proper operation of the ATV’s, as well as a few useful skills to help
ride safer and more stable from experienced crew members. Also,
operation of the Garmin etrex GPS to navigate the local authorized
roads was taught using pre-arranged waypoints at road junctions input
into the GPS units.
Narrative:
EVA #4 consisted of Christine Redmond as EVA lead, Douglas Trent as
navigator, and Shelby Bottoms as support. The EVA team left the
airlock at 4:16 PM. The team departed using ATVs 2, 3, and 4 at 4:20
PM. At several points along the road to the final destination, a
communication check was performed to test for proper function of the
radio repeater, as well as training to properly navigate the
authorized road system using the GPS units. At 4:53 PM, Hab command
lost radio communication contact with the EVA team. Communication was
not reestablished until 5:16 PM at 12S 0518888 E 4250941 N. While out
of communication, in-between these times the EVA team continued to
their final access point, 12S 518706 E 4252773 N, where they then
proceeded on foot to their final destination of 12S 0518875 E 4252815
N to conclude navigation training. It is believed that the radio
repeater was not functioning correctly due to the very limited range
experienced during the first ATV use for an EVA. Future testing will
need to be performed to ensure proper operation of the radio repeater.
Eva Depart Time:
4:16 PM
Check In Time One:
4:20 PM
Check In East One:
518230
Check In North One:
4250720
Check In Note One:
EVA team departs Hap with ATVs 2, 3, and 4
Check In Time Two:
5:16 PM
Check In East Two:
518888
Check In North Two:
4250941
Check In Note Two:
EVA team re-establishes communication concluding repeater test
Check In Time Three:
5:35 PM
Check In East Three:
518230
Check In North Three:
4250720
Check In Note Three:
EVA team returns to Hab with ATVs
Check In Time Four:
Check In East Four:
Check In North Four:
Check In Note Four:
Eva Return Time:
5:39 PM
Wp1 E:
518888
Wp1 N:
4250941
Waypoint1arrive Time:
5:16 PM
Eva W P1depart Time:
5:17 PM
Wp1 Find:
current tested radio range
Wp2 E:
518875
Wp2 N:
4252815
Eva W P2arrive Time:
5:00 PM
Eva W P2depart Time:
5:10 PM
Wp2 Find:
conclusion of navigation training with GPSs and ATVs
Wp3 E:
Wp3 N:
Eva W P3arrive Time:
Eva W P3depart Time:
Wp3 Find:
Wp4 E:
Wp4 N:
Eva W P4arrive Time:
Eva W P4depart Time:
Waypoint Four Finding:
Waypoint Five Easting:
Waypoint Five Northing:
Waypoint Five Arrive Time:
Waypoint Five Depart Time:
Waypoint Five Findings: