Operations Report – January 12th

Crew 186 Operations Report 12JAN2018

SOL: 12

Name of person filing report: M. Grande

Non-nominal systems: None

Notes on non-nominal systems: None.

Generator (hours run): 12h

Generator switched batteries, 7:30am

Generator turned off, charging battery at 10:30am

Generator turned on at 5:20pm

Solar— SOC

@ 7:30am : 40%

@ 10:30am : 100%

@ 5:20pm : 64%

Diesel: 50%

Propane: 26%

Ethanol Free Gasoline (5 Gallon containers for ATV): 3.3 Gallons

Water (trailer): 10 Gallons

Water (static): 316 Gallons

Trailer to Static Pump used: No

Water (loft) – Static to Loft Pump used: Yes

Water Meter: 129380.8 Gallons

Toilet tank emptied: No

ATVs Used: None

Oil Added? No

ATV Fuel Used: 00 Gallons

# Hours the ATVs were used today: 00:00 hours

Notes on ATVs: None.

Deimos rover used: Yes

Hours: 101.0

Beginning charge: 100%

Ending charge: 84%

Currently charging: Yes

Sojourner rover used: Assigned to director only.

Hours: 5.5

Beginning charge: 100%

Ending charge:

Currently charging: Yes

Spirit rover used: Yes

Hours: 12.1

Beginning charge: 100%

Ending charge: 47%

Currently charging: Yes

Opportunity rover used: No

Hours: 5.5

Beginning charge: 100%

Ending charge:

Currently charging: No

Curiosity rover used: No

Hours: 3.1

Beginning charge: 100%

Ending charge:

Currently charging: No, but was charging this morning during EVA

HabCar used and why, where? No

General notes and comments: Very fun EVA today because we had a nice long ride out to Skyline Rim, and I was just completely awed by the views. Sam and I each climbed up parts of the escarpment (or the more bougie term: “colluvial fan”) at the bottom of the ridge, trying to touch the layers left by Jurassic forces millions of years before us. Looking up to see the scale of one man compared to that ridge was incredible. Deimos broke 100 hours today– congratulations to our old chap! Young Spirit hung in there and is now at 12h; we’re slowly increasing their battery life.

Summary of internet: All nominal

Summary of suits and radios: All nominal

Summary of Hab operations: All nominal

Summary of GreenHab operations: All nominal

Summary of ScienceDome operations: All nominal

Summary of RAM operations: Not Operational

Summary of health and safety issues: Crew is Healthy

Questions, concerns and requests to Mission Support:

So part of my experiment explored how to teach the crew to do routine maintenance tasks, such as for the ATV brakes system. This is quite important, due to the safety considerations. I am aware that the ATVs all recently got a complete overhaul, which makes me grateful and confident in them, but I have one question. The brake fluid level indicators are barely readable, through a foggy window, so it’s hard to tell if there’s fluid in there at all. My question is then: were the brake systems checked, during the ATV checkout? Brake fluid is easy to replace, if needed.

Also, thank you all for supporting us throughout our mission! You’ve [CapComms and Mission Support] done a fantastic job at answering our questions and helping us with our concerns (especially reading my long explanations about that darned power system), and I’m very grateful!

Regards,

Melanie Grande, Crew Engineer, Crew 186

Sol Summary – January 12th

Crew 186 Sol 12 Summary Report 12JAN2018

Sol 12

Summary Title: A Bountiful Harvest Before Entry Interface

Author’s name: Max Fagin

Mission Status: Nearly complete…

Sol Activity Summary: After an animated debate over dimensional analysis and its applicability to breakfast foods (TLDR, we found a way for ‘The Pancake’ to be used as a non-SI unit of time, of distance, and of mass and energy; Manuscripts to be submitted to both Nature and Science upon our return) we geared up for the final EVA of our mission to the base of Skyline Rim. Once the EVA team had departed, Mark and Max began to harvest the microgreens from GreenHab. The EVA team returned with spectra and samples of the shales found in the region, along with a handful of shell fossils they had picked up on the way back through the Moons region. On Mars, such a discovery would be the scientific finding of the century. But here in the Moons region, they are so common as for it to be almost impossible to avoid stepping on them.

Once the sun had set, the team rotated through GreenHab and the Science dome collecting, weighing and cataloging our bountiful harvest of radish microgreens, green beans, cilantro, dill and lettuce. Finally, for our last meal in sim before our return to Earth, we subjected the food to its most critical experiment of all: Ingestion.

Look Ahead Plan: Tomorrow is handoff day. Looking forward to meeting the members of Crew 187 who are now en route. Safe travels!

Anomalies in work: None

Weather: 11C, Wind calm, Fair, Humidity 40%

Crew Physical Status: Healthy

EVA: Geological sampling of shales in the colluvial fan at the base of Skyline Ridge

Reports to be filed: Sol Summary, Operations Report, Science Report (Geology), Journalist Report, GreenHab Report, EVA Report, Mission Summary

Support Requested: None

End of Mission Summary – Crew 186

End of Mission Summary
Crew 186 – Boilers2Mars

Commander/Astronomer:  Max Fagin
Executive Officer:  Kshitij Mall
Crew Engineer:   Melanie Grande
Crew Geologist:  Dr. Cesare Guariniello
Journalist:  Justin Mansell
GreenHab Officer:  Mark Gee
Health and Safety Officer:  Samuel Albert

Commander’s Statement

As Purdue students and alumni, Purdue’s heritage with human spaceflight is a heritage we all take very seriously, and that heritage was on full display for the duration of this mission. I am happy to say that every member of this crew has risen to the highest standards expected of would be space travelers, and I am proud of every member of this crew for doing their jobs with skill, effectiveness, professionalism, robustness, and the positive disposition that space travel demands of those who pursue it. I would be proud to call any of you my crewmates on a real mission to Mars.

When undertaking challenging journeys like this, I often find there are two types of travelers. First, there are the kind who are happiest when things are going right. The kind who love it when a plan works. The kind who revel in practicing, planning and simulating every facet of the journey beforehand just as much as they love the journey itself.

Second, there are the kind of travelers who enjoy a journey more when things are going poorly, because it allows for a chance to test their skills in the face of danger. They revel in being just beyond the margin and only barely in control, because the experience will leave them with a harrowing story to tell when they get home.

Personally, I’m in the first camp. I subscribe to the perspective that a stressful and harrowing adventure is a sign of poor planning. Things sometimes go wrong that are beyond our control. And during those times, true stories of courage and heroism often emerge, especially in space travel. But there is nothing to be celebrated in seeking such situations. Because of our desire for narrative satisfaction, it’s the near disasters that often become our most cherished stories, but those stories of right ought to be told just as much about the textbook missions, and the hard work that made them possible.

That is why I am so proud of what we have accomplished as a crew during our time at MDRS, and why I will remember the time so fondly. Our mission was productive, exciting, and educational, but it was never stressful or harrowing. It has been a privilege to command such a talented and driven group of people.

Thank you to Ashwati Das and the Purdue Mars Society. Thank you to Professor Porterfield, Professor Mitchell, Professor Horgan, Professor Grant, Professor Whitfield and Professor Dumbacher, and thank you to Erin Easterling and Brian Huchel. Thank you to Mars Academy USA, Purdue Honors College, WIEP, ABE, SAO, and PESC. Thanks to the many Mars Society volunteers who have put in their time and hard work over the decades to make MDRS possible, and to those who specifically supported us on our mission: Veronica Brooks, Sylvain Burdot, Kevin Seidler, Kay Wolf, Jennifer Holt, Graeme Frear and Bernard Dubb. Thank you to Dr. Robert Zubrin and the Mars Society Leadership, and final thanks to Dr. Shannon Rupert for being our on-site support.

Boiler Up, Hammer Down!

-Max Fagin, 01/02/2018

 

Our Mission, By The Numbers

12 days in sim
125 person-hours of EVA total time
24 person-hours of EVA rover time
138 km traversed on EVA
515 gallons of water consumed (including GreenHab)
~1700 photos taken
86 geological spectra collected
580 grams of edible crops harvested from GreenHab
636,445 strands of DNA sequenced from microbes found in the hab

Summary of EVA Activities
Max Fagin, Commander

We conducted a total of 10 EVAs during our mission (11 were planned, but light snow on Sol 9 caused it to be delayed to Sol 10). Our EVAs lasted anywhere from 1-5 hours, traversing a distance of 138km total and reaching a maximum of 6.2 km from the hab. A map of every EVA we took is shown on the next page, overlayed on the MDRS regional map.

Something like the electric rovers of ATVs are an essential part of an effective Mars surface exploration campaign. However, they must be considered in the same class as the rockets and spacecraft that delivered the astronauts to Mars: As means, not ends. The best field science is still done when an astronaut is on foot and able to devote their complete attention to their surroundings. As such, a goal of this mission was to minimize the amount of “unproductive” time spent on EVAs. This includes time spent en route to targets, and loading/unloading equipment. An EVA debrief was regularly held 1 hour after the EVA had completed with the EVA director who had been the habcomm for the EVA, and a careful timeline was reconstructed from the gps logs carried by members of the EVA. This allowed us to build up an accurate picture of how our EVA time was spent.

A goal at the start of this mission was to spend at least 50% of each EVA on site. We were not able to accomplish this goal. A weighted average across all EVAs yielded only 42% time spent on site. Regardless, the system for reconstructing EVA timelines and locations proved very useful, as it allowed for quickly checking what had and had not worked on past when planning for future EVAs, as well as checking the location of geological samples.

Geology Summary
Dr. Cesare Guariniello, Crew Geologist

As will probably be the case in an actual Mars mission, a majority of our EVA activity was devoted to a geological survey of the region. Not only will such geological activates answer important questions about Mars’ past, but such geological knowledge will shape Mars’ potential as a future home. The need to reduce payload mass for future space exploration is imperative on long term colonial missions, and effective In-Situ Resource Utilization (ISRU) provides just such a way to reduce the materials that must be brought from Earth. For effective ISRU, future Mars colonists must determine material presence, abundance, accessibility, usability, and the best ways to collect them. On this mission, remote sensing techniques) were applied to support of this goal.

Geologic EVAs were performed to the following regions:

  • URC North Site
  • East of Greenstone Road
  • The Moons (Morrison Formation and Dakota Sandstone)
  • “Boilermaker Canyon”, previously unexplored by MDRS crews (Entrada Sandstone and lower Morrison Formation)
  • Skyline Rim (Mancos Shale).

The crew collected a variety of samples in these location, and analyzed them with a “PANalytical QualitySpec TREK” portable spectrometer. The 86 Visible and Near Infrared (VNIR) spectra that were collected gave information about the mineralogy of the samples, and will be used to assess water content in the various locations. Temperatures at different depths and in different conditions were also analyzed. These measurements will be used after the end of the mission to determine the correlation between thermal inertia and physical properties of the material, such as cohesiveness and bulk size. The EVAs brought the analog astronauts through diverse fields, ranging from plains covered in clays and characterized by salt deposits to deep canyons where million of years of strata are exposed. All the types of terrains are found on Mars, though the presence of large angular boulders is more prominent in most Martian landscapes. The results were extremely satisfactory, both in terms of Mars analog mineralogy and for what concerns collection of the samples with the various tools, and yielded useful outcomes for ISRU on Mars.

 

Radio Navigation
Justin Mansell, Journalist

GPS navigation will not be an option for early Mars explorer, and most navigation will need to take place with assets located at the habitat. One solution is to place a directional radio beacon at the hab, and just such a system was designed and successfully tested during our mission. Over four dedicated navigation EVAs, a simulated “lost astronaut” was able to determine their bearing to the habitat using a directional handheld antenna. By taking regular bearings while walking, the astronauts were able to navigate to within a few hundred meters of the habitat from several kilometers away, even when a visor was in place that limited their vision to only their immediate surroundings. The greatest challenge was the overwhelming signal strength at close ranges to the habitat, but this was mitigated by employing the insensitive axis of the antenna to find a bearing at right angles to the direction to the habitat. Future designs will include an attenuator to improve performance near the transmitting beacon and a timing circuit to establish both bearing and range.

 

Virtual Reality Training to Enable Crew Autonomy
Melanie Grande, Crew Engineer

Crew time will be as precious a resource as water and power on a mission to Mars, and virtual reality is a powerful teaching tool that offers the chance to reduce the amount of time a crew member must spend training for a complex task. For this mission, half the crew participated in a Pre-Mission Training Group (PMTG) and were conventionally trained on two tasks via PowerPoint training modules about three weeks before the mission. The crew learned how to use a portable spectrometer and how to perform maintenance checks on an ATV’s brake system. A Virtual Reality Training Group was given the freedom to use the VR version of the models at their own pace and at any time during their day. The VRTG could also take the training immediately before doing the EVA to complete the taught tasks. Mixed results were observed from the astronauts, but it was interesting to note that the VRTG spent much less time in training, which is positive in terms of maximizing astronaut work hours. However, some steps and details in each stage of the tasks were not given enough attention. Some of the VRTG also put off the training, since it wasn’t specifically scheduled. Participants from both groups did not specifically acknowledge the procedure and safety requirements if damage was found. Finally, the VR modules were limited in their interaction and level of detail, due to time and resource constraints. Future work would explore further the memorization of procedure and the interactivity of the VR applications. 

 

Survey of the MDRS Microbial Environment
Samuel Albert, Health and Safety Officer

Throughout the mission, surfaces in the habitat and GreenHab were swabbed in order to survey the microbial environment at MDRS. These swabs were then run through DNA extraction and amplification using portable PCR technology. Next, the amplified DNA was sequenced using the minion, a portable DNA sequencer that has previously been used to perform identical tests on the International Space Station. Although only 2 of the 4 sequencing runs yielded quality data, these results will be useful in analyzing the microbes present at MDRS. This research was completed in collaboration with NASA JSC, and the results will be part of a larger study on microbial environment in closed, isolated environments, including ongoing research on the International Space Station (Genes in Space-3).

 

Crew Relaxation with Guided Yoga
Kshitij Mall, Executive Officer

The human mind must remain well maintained on a Mars mission every bit as much as the electrical and mechanical systems of the spacecraft. To that end, the crew started each day by performing 21 different Yoga exercises focusing on breathing, posture, stretching, and meditation for 30 minutes to release stress. After 12 days, the average self reported stress of the crew reduced from 16.8 to 15.0 based on the Perceived Stress Scale Survey. Based on Self-Assessment survey, the crew’s average happiness, positivity, patience, self-confidence, and endurance increased throughout the mission while the fatigue remained stable. Later in the mission, some of the crew members tried a guided meditation VR app and suggested its use over conventional meditation method. The small number of subjects meant a control group could not be followed to isolate the effect of the morning exercises, but even if small, the exercise still promoted crew bonding by ensuring we all began our day at the same time, and with the same activity; the benefits of which cannot be quantified.

 

GreenHab Summary
Mark Gee, GreenHab Officer

The Greenhab has succeeded in its mission to provide food, house experiments, and bring stress relief to the crew. The harvest on the last sol of our rotation yielded a sampling of fresh microgreens, lettuce, green beans, dill, and cilantro, the first time this has been done this season. The previously planted tomatoes, cucumbers, green beans, and peppers are growing well along with the carrots, onions, arugula, radish, lettuce, and Swiss chard that were planted this rotation. Future crews should have a bountiful and tasty harvest. Two studies were successfully completed. One on how to produce microgreens using minimal resources, and the other on how plant growth is affected by the microbiome in an isolated Mars habitat. Time and humidity data were also successfully collected throughout the mission providing insight on the environment the GreenHab crops are exposed to. In addition to being productive, the GreenHab provided a convenient way to relax. Crew members were frequently found enjoying the heat, humidity, and beautiful scenery that the GreenHab provides.

Operations Report – January 11th

Crew 186 Operations Report 11JAN2018

SOL: 11

Name of person filing report: M. Grande

Non-nominal systems: None

Notes on non-nominal systems: None

Generator (hours run): 11.7h
Generator off, battery charging at 9:00am
Generator on at 6:40pm

Solar— SOC
@ 9:00am : 100%
@ 6:40pm : 56%

Diesel: 50%

Propane: 28%

Ethanol Free Gasoline (5 Gallon containers for ATV): 3.3 Gallons

Water (trailer): 10 Gallons

Water (static): 367 Gallons

Trailer to Static Pump used: No

Water (loft) – Static to Loft Pump used: Yes

Water Meter: 129380.8 Gallons

Toilet tank emptied: No

ATVs Used: None
Oil Added? No
ATV Fuel Used: 00 Gallons
# Hours the ATVs were used today: 00:00 hours
Notes on ATVs: Filled up the ATVs all the way, finally. Trying to track the fuel usage as well as the water usage for our sim, but it was difficult to see inside the fuel tank with the helmets. Now the fuel is right up to the neck of the tank, since we recently had the resupply, and we’re ready to roll for our long EVA tomorrow! One of them was making clanking sounds, and this will need to be inspected during our hand-off day.

Deimos rover used: No
Hours: 99.0
Beginning charge: 100%
Ending charge:
Currently charging: Yes

Sojourner rover used: Assigned to director only.
Hours: Director discretional hours
Beginning charge: 100%
Ending charge:
Currently charging: Yes

Spirit rover used: No
Hours: 10.5
Beginning charge: 100%
Ending charge:
Currently charging: Yes

Opportunity rover used: No
Hours: 5.5
Beginning charge: 100%
Ending charge:
Currently charging: No

Curiosity rover used: No
Hours: 3.1
Beginning charge: 100%
Ending charge:
Currently charging: No

HabCar used and why, where? No

General notes and comments: Today most of the crew didn’t go on EVA, so I used the time for my "Implications of VR for Crew Autonomy" experiment! I tested two crew members from my Pre-Mission Training Group and the Virtual Reality Training Group on tasks including ATV maintenance checks and geology sensing using a portable spectrometer. We used individual Engineering EVAs to make this happen. Lots of notes to write up tonight!

Summary of internet: All nominal

Summary of suits and radios: All nominal

Summary of Hab operations: All nominal

Summary of GreenHab operations: All nominal

Summary of ScienceDome operations: All nominal

Summary of RAM operations: Not Operational

Summary of health and safety issues: Crew is Healthy

Questions, concerns and requests to Mission Support: Based on the unknown clanking sounds coming from one of the 350 ATVs, we won’t use that one tomorrow on EVA. Also, to confirm what I remember from training, the Diesel gauge needle ranges from "12:00 to 6:00, counterclockwise," right? The needle has stayed just over 50% ("9:00") for the past few days, even though we ran the generator for three days straight.

Regards,
Melanie Grande, Crew Engineer, Crew 186

Journalist Report – January 9th

[Sol 9]

Another slow day at the hab. The crew awoke to frigid temperatures and a shroud of blowing Martian dust – our first sandstorm. Unwilling to test our luck in the tumultuous conditions, we immediately cancelled the planned EVA and have postponed it to tomorrow. Despite the storm, however, life at the habitat remains quite pleasant. The rarefied Martian wind is too tenuous to threaten our immediate safety and instead fosters a sense of coziness here. The crew enjoyed a television show after breakfast and has spent the day working, reading, and debating various topics. For those who participated in yesterday’s chilly EVA the downtime was certainly welcome.

By the late afternoon the dust had begun to clear and a robotic supply rover which landed earlier this week was able to complete its slow trek to the hab. After a quick excursion to obtain the supplies the crew delightfully unpacked a brand new bread maker and put it to use right away. At the time of writing the team is eagerly awaiting the results.

Justin Mansell, MDRS Crew 186 Journalist

P.S. Photos attached. Photo of the day: 09Jan2018 Crew mental health questionable.jpg

Greenhab Report – January 11th

GreenHab Report

Mark Gee

11Jan2018

Environmental control:

Heating

Shade cloth on)

Working Hour: 06:30PM Inside temp at working hour: 17 C Outside temp during working hours: 3 C Inside temperature high: 33 C Inside temperature low: 16 C Inside humidity: 39 %RH

Inside humidity high: 41 %RH Inside humidity low: 16 %RH

Hours of supplemental light:

For the crops 05:00 to 11:59 PM

Changes to crops: The tomatoes, cucumbers, beans, herbs, peppers, and melons keep growing. The microgreens have taken off and will be ready to harvest tomorrow. Of the seeds planted, the arugula, mustard, and various lettuce varieties have sprouted.

Daily water usage for crops: 15 gallons

Time(s) of watering for crops: 11:00AM, 06:30PM

Research observations: The microgreens have recovered from the early damage and are sprouting magnificently. Tomorrow they will be harvested.

Changes to research plants: None.

Aquaponics: Not in use.

Narrative: Today I watered the plants as usual and inventoried the tools, fertilizer, pots, and supplies.

The grow lights turned on at 02:00 pm. The analog timer has been gaining time steadily, as do the clocks on the electronic appliances in the Hab. These clocks probably use the frequency of the alternating current power supply to keep time as is common in most appliances. The standard frequency for an electrical grid in the US is 60 Hz, and our crew engineer observed that the generator is supplying power at 60.18 Hz. This increased frequency would cause the clocks to gain time at approximately the rate we are observing. See Sol 1 summary for a further explanation.

To compensate for this gain, the light timer needs to be reset every day.

Support/supplies needed: Scale with a capacity of 2 kg. The analog scale in the Science Dome has a capacity of 610g. Needed for experiments tomorrow.

EVA Report – January 11th

Author: Max Fagin

Purpose of EVA: The last testing of the Yagi-Uda antenna based navigation experiment for navigating back to the hab. Destination change the night before to Skyline ridge allowed photographic reconnaissance in preparation for tomorrow’s geology EVA to the same site.

Destination: Plains to the east of skyline ridge

UDM27 Coordinates: 516000 E, 4251000 N

Participants: Max Fagin (Commander), Kshitij Mall (Executive Officer)

Narrative: This EVA was the final demonstration of the radio beacon navigation system, with the goal of demonstrating its effectiveness when line of sight was obstructed for the duration of the walk. Kshitij served as the lost astronaut, and had the hood in place over his helmet that limited his field of view to 5m from his feet. Max monitored the route and tracked the progress via gps to ensure the route was safe. We left the airlock at 10:36 and walked north along a foot path to the top of the ridge that rises over the hab to our west. After cresting the ridge, we walked due west along Sagan Rd before swinging south 50m to await the first beacon transmission. When the beacon was received, we started back, Kshitij leading the way, and Max monitoring. When Kshitij would stop to check the bearing on the hab, Max tested an experimental chlorophyll detector that Chris McKay and Matteo Borri had designed for us for use on the local flora. A loss of the beacon for ~15 minutes led to a complete turnaround, but it was corrected when the beacon was picked up again. We crested the ridge 45 minutes later at the ridge’s closest point to the hab, exactly where we should have been. So close that Kshitij gave an audible gasp when Max removed the hood and saw the habitat was so close. We deactivated the beacon, and walked north to find the route back down to the hab. Airlock ingress was at 12:37 for a total EVA time of 2:01.

Note: One of the hab’s radios has been damaged beyond repair. I was carrying it in my front pocket as a backup radio, and when I lifted my leg while climbing the ridge, the antenna was pinched against my front and snapped off. Shannon: There are still more than enough radios at the hab to provide spares, so I don’t know if you will want to replace it or not, but either way, I will note this on the checkout sheet as damage incurred. My apologies for the damage.

Sol Summary – January 11th

Crew 186 Sol 11 Summary Report 11JAN2018

Sol 11

Summary Title: The first of the lasts

Author’s name: Max Fagin

Mission Status: Preparing for a grand finale EVA to a geology site we have saved especially for our last EVA.

Sol Activity Summary: The sun came back out today, much to our appreciation (and the appreciation of our solar panels). Any problem can be fixed in a spacecraft as long as you still have power and comms, and it has been a great weight off our shoulders to only view cloudy days as a mild annoyance, rather than a critical power threat as they might be on a pure solar mission.

The clear weather allowed for our last navigation EVA to take place as scheduled. We now have four complete demonstrations of an astronaut using nothing but the radio beacon to safely return to the hab, two where the astronaut had no experience with the system, and an impaired range of vision. I’m very pleased with Justin for producing such a practical aid to navigation in places where no gps is available (such as Mars … for now at least). It’s an early back to school for some of us, as Melanie has begun taking us on short engineering EVAs to test the efficacy of the VR training module she has developed for teaching EVA tasks. Around the hab, we continue to check off the last remaining items on our individual projects so we can face handoff with a clear schedule.

On a personal note, today was the first day I really saw GreenHab as more than just a greenhouse. I remember contributing to the Kickstarter campaign to rebuild Greenhab after the fire, and it has made me immeasurably proud to see it continue to thrive and grow under Mark’s skillful control while we are here. Stepping into the tropical heat and humidity of GreenHab today after a cold and dry EVA felt as relaxing as stepping into a hot tub. I sat down amidst the plants to appreciate the magnificent oasis thriving in this red/brown landscape, and the environment was so placid that I was not at all surprised when I woke up 15 minutes later to find I had drifted to sleep in my chair. Greenhouse, oasis, zen garden, GreenHab is much more now than just a place where plants grow.

Look Ahead Plan: Our last EVA will take place tomorrow, with one final geological survey to the highest elevation site on our list at the base of Skyline Ridge. Harvesting of our carefully grown GreenHab bounty will also take place tomorrow, we are planning to exit sim at noon on Saturday 01/13.

Anomalies in work: None

Weather: 6C, Wind SSE 8km/h, Fair, Humidity 52%

Crew Physical Status: Healthy

EVA: Preliminary photography of the Plane of Dirt / Skyline Ridge region for the last geology EVA, then walk back to the hab to test the radio navigation system.

Reports to be filed: Sol Summary, Operations Report, GreenHab Report, Journalist Report, EVA Report, EVA Request

Support Requested: None.

EVA Report – January 10th

Author: Cesare Guariniello

Purpose of EVA: Testing the next phase of the Yagi-Uda antenna-based navigation experiment for navigating back to the hab. Testing with a stranded astronaut in a condition of low visibility

Destination: End of Mountain Goat Road

UDM27 Coordinates:

519750 E

4250500 N

Participants: Cesare, Melanie, Mark (stranded astronaut)

Narrative: This EVA put an astronaut in condition of low visibility, simulating a dust storm. This condition was obtained with a cardboard placed over the top portion of the ExoSuit helmet. The astronaut has visibility limited to about 5m ahead (for reasons of safety) and can look at the handheld radio when navigating, in order to find the direction of the habitat. The crew egressed the habitat with Mark already “under the hood”, and checked the safety of the hooding apparatus, then the three EVA crewmembers started walking Northwest to the intended destination, guided by Cesare’s GPS unit. During the outward path, Melanie and Cesare had Mark stopping multiple times, to spin around and be redirected so as to be completely disoriented. The outward path was also chosen so that the return direction would not follow it.

Once the turnaround point was reached, Mark turned on the Yagi-Uda antenna receiver and began scanning for the radio beacon from the habitat, sent initially at intervals of 5 minutes. Melanie and Cesare took care of the safety of the path chosen by Mark, but let him decide the direction to walk towards. When rock walls occurred, Mark decided the best path around them, and only once he was requested to stop to avoid excessive proximity to a shallow canyon. The EVA gave significant results to the experiment. Mark was able to locate the habitat with adequate precision even when hills and rocks obstructed the line of communication, though a power attenuator might be required in close proximity to the habitat (Mark could navigate close to saturation of the signal, at about 500m from the habitat). A major problem was the difficulty to follow a straight path. Mark always pinpointed the direction towards the habitat, but walked in wide arcs. For this reason, Cesare and Melanie requested continuous transmission of the beacon signal which helped reducing the path error.

Around 1:40 (one hour and 35 minutes into the EVA), the weather turned to rain. The crew immediately reported the occurrence to the HabCom. Upon indication by the commander the EVA was scrubbed immediately, Mark was unhooded, and the EVA team returned to the hab (which had been in sight for about 20 minutes, and was only 500m away) without delays and ingresses the airlock after collecting two soil samples from the immediate vicinity of the habitat, to be analyzed for use in the Greenhab by future crews.

Cesare Guariniello, crew geologist

Crew 186 – Boilers2Mars

Mars Desert Research Station

Operations Report – January 10th

Crew

186 Operations Report 10JAN2018

SOL:

10

Name

of person filing report: M. Grande

Non-nominal

systems: None

Notes

on non-nominal systems: None

Generator

(hours run): 12.7h

Generator

batteries switched at 8:45am

Generator

batteries switched at 7:30pm

Solar—

SOC

@

7:15am : 95%

@

6:00pm : 99%

Diesel:

50%

Propane:

29%

Ethanol

Free Gasoline (5 Gallon containers for ATV): 5.9 Gallons

Water

(trailer): 10 Gallons

Water

(static): 413 Gallons

Trailer

to Static Pump used: No

Water

(loft) – Static to Loft Pump used: Yes

Water

Meter: 129321.3 Gallons

Toilet

tank emptied: Yes

ATVs

Used: None

Oil

Added? No

ATV

Fuel Used: 00 Gallons

#

Hours the ATVs were used today: 00:00 hours

Notes

on ATVs: None.

Deimos

rover used: No

Hours:

99.0

Beginning

charge: 100%

Ending

charge:

Currently

charging: Yes

Sojourner

rover used: Assigned to director only.

Hours:

Director discretional hours

Beginning

charge: 100%

Ending

charge:

Currently

charging: Yes

Spirit

rover used: No

Hours:

10.5

Beginning

charge: 95%

Ending

charge:

Currently

charging: Yes

Opportunity

rover used: No

Hours:

5.5

Beginning

charge: 100%

Ending

charge:

Currently

charging: No

Curiosity

rover used: No

Hours:

3.1

Beginning

charge: 100%

Ending

charge:

Currently

charging: No

HabCar

used and why, where? No

General

notes and comments: None.

Summary

of internet: All nominal

Summary

of suits and radios: All nominal

Summary

of Hab operations: All nominal

Summary

of GreenHab operations: All nominal

Summary

of ScienceDome operations: All nominal

Summary

of RAM operations: Not Operational

Summary

of health and safety issues: Crew is Healthy

Questions,

concerns and requests to Mission Support: I will wait for the handover day to review the state of the generator coolant as well as some other things, like the oil and filters. Curious when the last time the generator was completely serviced? (i.e. air and

oil and fuel filters replaced, hoses and tubing checked, etc.) I believe the man who installed or managed the settings for our power system will be coming back to town soon and will hopefully address the concerns we have with the system, and I would suggest

that a generator servicing might be scheduled around the same time, if that hasn’t been done recently.

As mentioned before: we need a propane resupply, the right tailgate latch on Opportunity is broken, and there is an unidentified leak underneath the front of the hab.

Regards,

Melanie

Grande, Crew Engineer, Crew 186

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