Category: EVA Report

Crew 279 EVA Report 04-04-2023
EVA #02
Author: Antoine de Barquin Crew Commander
Purpose of EVA: Training EVA + communication test with crew members and with the hab.
Start time: 9:00
End time: 10:28
Narrative:
This EVA was also the first for the rest of the crew and was therefore also used as training. The EVA area was Marble Ritual as the day before. The objective was to learn how to correctly perform the EVA which includes several exercises such as the depressurization process, driving the rovers, radio communication and EVA end report. And on the other hand, to test different means of communication such as the designation of an object in the distance to show a direction and the language of the signs used in diving.
The crew scientist took advantage of the mobility exercises in wetsuit to deposit a dosimeter useful for his experience.
The crew finally decided to come back to the rover and start the return to the base at 10:10 am after having explored the area well. The reports were well done before entering the decompression chamber and the crew came back in time.
Destination: Marble Ritual
Coordinates (use UTM WGS 84): 519000 E ,4250500 N
Participants: 4: Antoine (Commander) (EVA Leader), Aglaé (Journalist), Ttele (HSO), Thomas (Scientist).
Road(s) and routes per MDRS Map: Cow Dung Road 0110
Mode of travel: First drive of Rover with spacesuits and accommodation with maneuver to the Marble Ritual then walk around no farther than 200 meters for communication check.

Crew 279 EVA Report 03-04-2023
EVA #01
Author: Ioana Dimitrova
Purpose of EVA: Training EVA + communication test with crew members and with the hab.
Start time: 9:20
End time: 10:10
Narrative: The goal of the EVA was to get comfortable with the spacesuits, the protocole and the environment. Preparation went well but during the decompression in the airlock, we had trouble hearing what one of the crewmembers was saying. We aborted the decompression and tried to fix the problem. We put the walkie talkie on the other side of the person’s chest, played with the cable a little bit, redid the whole procedure for radio and helmet and tried again, everything seemed to be working fine. The first part of the EVA consisted of getting to the Marble Ritual with the rovers. The second part was to walk around the Marble ritual area to discover the place and to get acquainted with the spacesuits, the radio communication and the particularities of the soil. This walk consisted of 20 min of the EVA. No communication problems seemed to exist. Exploration was nominal. The third part was the return to the Hab with the rovers. Upon arrival, the crewmember who had a problem with the radio prior to the mission, tried to communicate the rover numbers to the Hab and it was at that moment that we noticed that his comms were not working properly. It was time to end the mission anyways, so we went inside after decompression.
The crewmember in question is not the chatty type, so even if the problem occurred earlier in the EVA, we didn’t notice the problem then. Our hypothesis is that there is a problem with the headset because we tested the radio with another headset and it seemed fine. The headset doesn’t seem to be able to be fixed. During the next EVA, the crewmember in question will use another headset with his radio.
Destination: Marble Ritual
Coordinates (use UTM WGS 84): 519000 E ,4250500 N
Participants: 4: Ioana (Engineer) (EVA Leader), Agnes (Executive officer), Gwen (Astronomer), Augustin (Greenhab officer).
Road(s) and routes per MDRS Map: Cow Dung Road 0110
Mode of travel: First drive of Rover with spacesuits and accommodation with maneuver to the Marble Ritual then walk around no farther than 200 meters for communication check.

Crew 275 EVA 22 Report 18Feb2023
EVA # 22

Author: Quentin Royer (Crew Engineer)
Purpose of EVA: Retrieval of all the atmospheric instruments

Start time: 09:07
End time: 10:43

Narrative:
The 3 crewmembers drove with the rovers and arrived to destination at 9:17. They unloaded the rovers and headed towards the instruments. The EVA Crew started with the meteorological mast. No problem was encountered during its dismantlement, and it was safely packed.
The EVA Crew then began to dismantle the MegaAres antenna, and first retrieved the two hemispheres. As they were very light, and as there were high winds, the crew decided to bring the equipment which were already dismantled back to the Hab.
The rovers were loaded, and the crew departed the atmospheric instruments’ location at 9:50.
Then, the EVA Crew unloaded the rovers and put the equipment in the main airlock, for retrieval by the rest of the Crew located in the Hab.
The EVA Crew was back on site at 9:54. The disassembled the rest of the MegaAres antenna with no problem. Then, the LOAC was retrieved and packed.
The EVA Crew was back at the Hab at 10:34.

All the objectives of the EVA were completed.

Destination: Between the Hab and Marble Ritual, near the road

Coordinates (use UTM WGS 84): N4251000 E518500

EVA Participants :
• EVA leader: Quentin Royer (Crew Engineer)
• Alexandre Vinas (Crew Astronomer)
• Corentin Senaux (HSO)

Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to a place just before Marble Ritual

Mode of travel: Driving, even if the destination was less than 1 km away, the crew needed to transport heavy instruments that also take up a lot of space.

Crew 275 EVA Report 09Mar2023

EVA # 20

Author: Alice Chapiron, EVA Leader and Crew Scientist

Purpose of EVA: The purpose of the EVA was to explore the Special Region

Start time: 9:06

End time: 12:06

Narrative:

09:11: Airlock closed.

09:12: Rovers Opportunity and Spirit unplugged. They then left from the Hab at 09:14.

09:18: Rovers parked near the atmospheric instruments.

09:38: Data retrieved, and batteries changed for the Purple Air, LOAC, Mega-Ares, and Field Mill. The EVA crew is about to go back to the rovers to go to their target location.

10:00: Rovers are parked on the road to the Special Region to save the battery of the rovers

10:45: The EVA Crew arrived at the Special Region. They spotted a pick-up truck in the area so they decided to turn back.

11:30: Back to the rovers.

11:58: Arrival at the Hab.

12:49: End of the EVA.

Destination: Special Region

Coordinates: N4256000 E518500

Participants: EVA Leader: Alice Chapiron (Crew Scientist), Adrien Tison (Crew Botanist), and Jérémy Rabineau (Crew Commander)

Road(s) and routes per MDRS Map: Cow Dung Road until the rovers where at 65% of battery, then walk to the Gateway to Lith and the Special Region.

Mode of travel: Driving using Spirit and Opportunity and walking

Crew 275 EVA Report 09-03-2023

EVA # 21

Author: Alexandre VINAS (Crew Astronomer and HabCom)

Purpose of EVA: Emergency drill, simulation of a depressurization in the science dome corridor that had to be fixed, and test of AI4U, an artificial intelligence designed to help the astronauts during emergencies

Start time: 15:17

End time: 15:35

Narrative:

15:03 Emergency started

15:15 EVA crew is equipped for the EVA

15:17 Airlock closed

15:22 EVA crew out of the MDRS

15:23 EVA crew arrived at the place of the depressurization, located in the corridor of the Science Dome, on the right side when facing the Science Dome

15:27 “Hole” repaired (EVA crew took tools and simulated operating a repair)

15:35 EVA Crew back in the Hab

The hole was repaired in less than 30 minutes, that was our purpose.

Destination: In the vicinity of the MDRS, next to the Science Dome.

Coordinates (use UTM WGS 84): N4251000 E518200

Participants: EVA Leader: Corentin Senaux (HSO), Adrien Tison (Crew Botanist)

HAB COM: Alexandre VINAS (Crew Astronomer)

Road(s) and routes per MDRS Map: /

Mode of travel: Walking

Crew 275 EVA Report 07-03-2023

EVA # 19

Author: Alexandre VINAS (Crew Astronomer and HabCom)

Purpose of EVA: Change of batteries for all the atmospheric instruments, as well as data retrieval. Then, we will go to North Ridge with the journalist team in order to showcase a typical exploration scenario, based on week #2 photogrammetry experiment

Start time: 10:36

End time: 12:15

Narrative:

10:36 – Airlock closed

10:46 – EVA Crew leaves the MDRS, with a crew of 2 journalists from the French TV

10:54 – EVA Crew arrives at the destination. All the instruments are going well.

11:15 – Batteries of LOAC and MegaAres changed, data retrieved

11:02 – Retrieving of the data, change of the batteries of PurpleAir

11:18 – Retrieving of the data, and change of the batteries of the field mill

11:23 – EVA crew leaves the instruments and goes to North Ridge in order to showcase the photogrammetry experiment to the journalists

11:40 – EVA crew requests an extra time of 20 minutes to mission support for the EVA. Request approved.

12:05 – EVA crew back to the MDRS

12:15 – End of the depressurization, EVA crew back in the hab

Destination: Between the Hab and Marble Ritual near the road.

Coordinates (use UTM WGS 84): N4251000 E518500

Participants: EVA Leader: Quentin Royer (Crew Engineer), Jeremy Rabineau (Commander)

HAB COM: Alexandre Vinas (Crew Astronomer)

Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to a place just before Marble Ritual, then to North Ridge (see map on the attached picture)

Mode of travel: Driving and walking

Crew 275 EVA Report 06Mar2023

EVA # 18

Author: Adrien Tison, EVA Leader, and Crew Botanist

Purpose of EVA: The purpose of the EVA was to perform the photogrammetry experiments with the 3D map.

First, as it was on the way to Candor Chasma, we changed the batteries and re-installed the LOAC.

We then went to Candor Chasma, where the subject of the experiment tried to find some specific checkpoints, while the operators of the experiment onsite took time measurements and drew their trajectory on a map. In addition, the subject was equipped with a step counter. Indeed, as the Crew Journalist is injured, we performed the experiment with only one subject.

Start time: 9:05

End time: 12:39

Narrative:

9:05 – Airlock closed, depressurization starting

9:10 – Exiting Airlock, airlock closed

9:13 – Departure from Hab

9:16 – Arrival at the instruments’ site

9:25 – Batteries are being changed and data retrieved. MegaAres was off when we arrived

9:37 – Leaving the site

9:39 – Departure with the rovers

9:43 – Arrived at North Ridge

9:44 – Leaving the rovers and walking

9:54 – Radio check from HabCom– OK – HabCom is received very well on EVA

Leader’s side – Still on their way to Candor Chasma

10:05 – Brief contact with EVA leader, switching to channel 2

10:16 – Photogrammetry experiment starting, EVA leader has to search for the checkpoints

11:14 – Experiment over, exploration of Candor Chasma

11:51 – EVA Crew heading back to the rovers

12:32 – EVA Crew back at the rovers

12:36 – Passing Marble Ritual

12:38 – Rovers parked at the Hab

12:39 – Crew in Airlock

To conclude briefly, everything went to plan, batteries have been changed, LOAC is now in place and data have been retrieved. The photogrammetry experiment went perfectly well, all checkpoints were found quite quickly.

Destination: First we will stop where the MegaAres and the METEO station are

located; we will then go to Candor Chasma.

Coordinates: N4251000 E521500

EVA Participants: EVA Leader: Adrien Tison (Crew Botanist & Subject), Alice Chapiron (Crew Scientist & Operator), and Corentin Senaux (HSO & Operator)

HAB COM : Marie Delaroche (Crew Journalist)

Road(s) and routes per MDRS Map – Cow Dung Road until the intersection with “Gateway to Candor”, we then walked eastwards until Candor Chasma for an estimated 2.5 km from the rovers.

Mode of travel – Driving and walking

Vehicles we used – Opportunity and Spirit

Crew 275 EVA Report 05-03-2023

EVA # 17

Author: Alexandre VINAS (crew astronomer and EVA leader)

Purpose of EVA: Change of battery for all the instruments, as well as data retrieval.

Start time: 10:18

End time: 11:30

Narrative:

10:18 Airlock closed

10:28 EVA crew arrived at the destination.

MegaAres instrument was off. Its 12V battery had a level of 8.6V.

LOAC malfunctionned. Its battery was fully charged but the instrument was off (even if it was turned on during the last EVA). LOAC was removed.

11:02 Change of the batteries of PurpleAir and data retrieval.

11:18 Change of the batteries of Field mill and data retrieval.

11:25 EVA crew left the site of the instruments.

11:30 EVA crew back at the rovers.

11:45 EVA crew back in the hab.

Destination: Between the Hab and Marble Ritual near the road.

Coordinates (use UTM WGS 84): N4251000 E518500

Participants: EVA Leader: Alexandre VINAS (Crew astronomer), Alice Chapiron (Crew Scientist)

HAB COM: Quentin Royer (Crew Engineer)

Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to a place just before Marble Ritual (see map on the attached picture)

Mode of travel: Curiosity

Crew 275 EVA Report 04Mar2023

EVA # 16

Author: Adrien Tison (crew botanist and EVA leader)

Purpose of EVA: The purpose of the EVA is to perform the photogrammetry experiments with the 3D map.

First, as it is on the way to Candor Chasma, we will change the batteries and collect the data of MegaAres, Purple Air, LOAC, and the Field Mill.

We will then go to Candor Chasma where the two subjects of the experiment will try to find some specific checkpoints, while the operators of the experiment onsite will take time measurements and draw their trajectory on a map. In addition, the two subjects will be equipped with a step counter.

Start time: NA

End time: NA

Narrative:

The EVA was cancelled because four crew members were away from the MDRS, due to medical reasons.

Destination: Between the Hab and Marble Ritual near the road.

Coordinates (use UTM WGS 84): N4251000 E518500

Participants: EVA Leader: Adrien Tison (Crew Botanist & Subject), Marie Delaroche (Crew Journalist & Subject), Alice Chapiron (Crew Scientist & Operator), and Corentin Senaux (HSO & Operator)

HAB COM: Quentin Royer (Crew Engineer)

Road(s) and routes per MDRS Map: NA

Mode of travel: NA

Crew 275 EVA Report 03-03-2023

EVA # 15

Author: Jeremy Rabineau (Commander and EVA Leader)

Purpose of EVA: The purpose of the EVA was to perform the photogrammetry experiments with the 2D map.

First, as it was on the way to Candor Chasma, we changed the batteries and collected the data of MegaAres, Purple Air, and the Field Mill. We also reinstalled the LOAC.

We then parked at North Ridge and explored the place, so that we could be filmed there by the BBC.

We then went to Candor Chasma where the two subjects of the experiment tried to find some specific checkpoints, while the operator of the experiment onsite took time measurements and drew their trajectory on a map. In addition, the two subjects were equipped with a step counter.

Start time: 09:01

End time: 12:49

Narrative:

09:01 Airlock closed.

09:06 Exiting the airlock.

09:14 The EVA Crew leaves the Hab with the rovers (Opportunity and Perseverance).

09:16 Rovers parked next to the location of the atmospheric instruments. The crew arrives onsite 3 minutes later.

09:28 Battery and SD Card of Purple Air changed.

09:29 LOAC installed and measurement launched.

09:33 Battery of the Field Mill Changed and measurement launched.

09:36 Data retrieved from MegaAres and battery changed.

09:38 Leaving with the rovers to North Ridge.

09:47 Arrival at North Ridge. Walking around the area so that the BBC can shoot beautiful videos.

10:16 The BBC crew is leaving, while the EVA crew starts walking towards Candor Chasma.

10:45 Arrival at the entrance of Candor Chasma.

11:47 All 10 checkpoints have successfully been identified by the two subjects of the experiment. Walking back towards Gateway to Candor.

12:29 EVA crew back at the rovers and driving back towards the MDRS.

12:40 Both rovers parked at the MDRS.

12:43 EVA Crew back to the main airlock.

Destination: First we stopped where the MegaAres and the METEO station are located, i.e., between the Hab and Marble Ritual; then we stopped at North Ridge; finally we went to Candor Chasma.

Coordinates (use UTM WGS 84): N4251000 E518000, N4252000 E519000, and N4251000 E521500

Participants: EVA Leader: Jeremy Rabineau (Crew Commander & Subject), Alexandre Vinas (Crew Astronomer & Subject), Quentin Royer (Crew Engineer & Operator)

Hab Com: Alice Chapiron (Crew Scientist)

Road(s) and routes per MDRS Map: Cow Dung Road until the intersection with “Gateway to Candor”, we then walked close to North Ridge, and then we went eastwards until Candor Chasma for an estimated 2.5 km from the rovers. (See map attached)

Mode of travel: Driving and walking.

Crew 275 EVA Report 01Mar2023

EVA # 14

Author: Adrien Tison, EVA Leader and Crew Botanist

Purpose of EVA: The purpose of the EVA is to perform the photogrammetry experiments with the 3D map

First, as it is on the way to Candor Chasma, we will change the batteries and collect the data of MegaAres, LOAC, Purple Air, METEO and the Field Mill.

We will then go to Candor Chasma where the two subjects of the experiment will try to find some specific checkpoints, while the operator of the experiment onsite will take time measurements and draw their trajectory on a map. In addition, the two subjects will be equipped with a step counter.

Due to the bad weather conditions (snow), the purpose of the EVA was modified, in agreement with Mission Support, so that very urgent operations could be conducted with our atmospheric instruments.

New purpose of the EVA: Change the batteries and retrieve data from our atmospheric instruments (LOAC, MegaAres, the Weather station, Purple air, and the Field Mill), repatriate LOAC to the Hab.

Start time: 11:26

End time: 12:14

Narrative:

11:26 – Airlock closed.

11:34 – Rovers Spirit and Curiosity unplugged.

11:35 – Rovers on their way to the location.

11:37 – Rovers parked near the atmospheric instruments.

11:47 – Data retrieved, and battery changed for Mega-Ares.

11:49 – LOAC has been put in a box to take it back to the Hab.

11:54 – The zip-lock in which was the Weather station device was open, the LED stopped blinking, we then decided to take it back to the Hab too.

11:54 – Data retrieved, and battery changed for Purple Air.

11:59 – Data has been successfully retrieved from the Field Mill. However, there were some issues while trying to change the battery. Measurements didn’t start as expected and the device switched off.

12:04 – It started snowing so we couldn’t stay enough time to solve the issue, we then decided to go back to the rovers.

12:07 – Rovers loaded and ready to go.

12:11 – Arrival in front of the Hab.

12:12 – Loading materials into the Airlock.

12:14 – Airlock closed.

12:19 – End of the EVA.

Destination: Between the Hab and Marble Ritual near the road.

Coordinates: N4251000 E518500

Participants: EVA Leader: Adrien Tison (Crew Botanist), Alice Chapiron (Crew Scientist), and Marie Delaroche (Crew Journalist)

HAB COM: Quentin Royer (Crew Engineer)

Road(s) and routes per MDRS Map: Drive Cow Dung Road 0110 to a place just before Marble Ritual

Mode of travel: Driving using Spirit and Curiosity and walking