0114-EVAReport

Crew 161

EVA #4 Summary Report

EVA Date: 14th Jan 2016

Crew Engineer Reporting

Purpose: To do the physical analysis of the regolith where we want to test our robotic arm and test radio communication links

Location: 12S-519100E-4251800N

Number of EVA Crew: 3

Crew Members on EVA: Divya Shankar, Mikhail Khmelik,Veronika Shteyngardt

ATVs:

- ATV 1 Used: Yes

- ATV 2 Used: no

- ATV 3 Used: Yes

- ATV 4 Used: Yes

ATV time usage: 1.00 Hours

Duration of EVA: 1 hour 44 min

EVA departure time: 12.00pm

EVA return time: 1.44pm

Time Checks:

- 12.06pm - ATV start

- 12.13pm - Lost communication with HAB

- 12.28pm - Connection reestablished

- 13.00pm - Found soil for robotic arm

- 13.20pm - Heading back to the HAB

- 1.44pm - Entered HAB

Coordinate Checks:

- 12S-518905-4250977 - Comm lost

- 12S-519078-4251590 - Comm reestablished

- 12S-518736-4254881 - Photo taken

- 12S-518206-4203574 - Soil for the robotic arm

- 12S-518171-4255412 - Returning to the HAB

Summary: radio works only on flat surfaces. Any obstacle interrupts the signal. Distance is not the problem. Future EVAs will be adjusted for work without communication with the HAB. Found soil for robotic arm project. Location: dried river that crosses the road on the North. Will test the robot after it will be assembled. Crew is more confident with using ATVs. Possible to extend EVA distance.