2022-2023 Field Season (#22)

Crew 297 – Janus 1 Journalist – David Laude

Janus 1’s first double EVA on Sol 4, taken on another beautiful Martian day by two teams of two. One team manned by both Matts worked on burying the nuclear reactor in regolith, while at the same time Pawel and Dave got practice with the robot system provided by Nicholas Conlon of CU Boulder.

The two Matts took turns digging until after 54 minutes of toil they had a hole big enough to hold the entire mock reactor. A few issues came up along the way including Matt’s (does it matter which one?) communications head piece that slid of his head until repositioned. That’s part of the learning in sim experience. Afterwards, they removed the reactor and covered up the hole. We will hear more about the reactor in future reports.

Meanwhile Pawel and Dave set up the mobile robot, named "Case", after a robot from sci-fi movie "Interstellar". The process was long, due to our not having done it before, but it worked the first time. Pawel did the driving from a laptop while Dave walked along with his new friend Case, while watching for obstacles. Case can be programmed from the laptop to drive a particular course, but sometimes Pawel had to manually drive it from his laptop computer.

The main goal of the study with Case is to understand how future astronauts, in current real-world robotic applications, where users rely heavily on telemetry, map data, and intuition in order to infer how competent a robot will be in a given environment. Telemetry can consist of a variety of data, however in our experiments, telemetry will include the robot’s position, heading, velocity, battery level, and other state information. Map data consists of a displayed map with iconography indicating features such as positions of the robot, waypoints, hazards, and other relevant information. This information, while valuable, can be confusing for non-expert users whose mental model of the robot’s competence is incomplete or inaccurate, tedious to follow and monitor, and can lead to poor human decision-making. Instead, this research focuses on developing more human-centered approaches to convey robot competency.

In an unusually productive day, Sean and Matt S. also gave the rest of the crew an introduction to their software based "Toolset for Shared and Long-term Document Management and IT Operations". More on this in a later journalist report.

Today’s person of interest is Executive Officer Matthew Storch. He has B.S. and M.S. degrees in electrical engineering from Stevens Institute of Technology and a Ph.D. in computer science from UIUC. He has worked as a software engineer and has held various engineering management positions for 35 years He is currently acting VP Engineering and CTO of a small (30 person) company that is building a specialized physical infrastructure management product (target audience is large corporations and government institutions). Outside of work, Matthew has a long-standing passion for adventure, technical achievement and unusual experiences that has led him to becoming an airplane pilot, a gyroplane pilot, sailboat & powerboat operator, and a submersible pilot.

Crew 297 – Janus 1 Journalist – David Laude

Our fourth EVA on Sol 3, taken on this beautiful Martian day by three of the crew, found the hidden nuclear reactor mockup (a 20-gallon capacity cylindrical metal container). Crew members of yesterday’s third EVA provided a simulated landing site for the nuclear power system. Sarah, the EVA Crew Leader, Pawel and Dave were given an approximate landing site via GPS coordinates, which was within 1000 feet from the actual location. The terrain here was like a maze of short hills, any of which could hide the reactor. Fortunately, we were headed in the correct direction from the start and Dave found the reactor within 15 minutes. Afterwards, the EVA crew was tasked to find a location where it could dig to bury it. In this Martian terrain it is common to immediately be stymied by loose chunks of sandstone. The team drove further south on Cow Dung Road and then parked the rovers. Digging near the road quickly revealed sand stone slabs. Dave, having been in this area before, suggested an area 60 meters further west from the road where Pawel found loose regolith with his shovel. He quickly dug down a half meter in one location and then another. This area is likely where it will be buried and later retrieved. Burial is required to help reduce radiation exposure to humans with an active installation.

Sarah had this to say about today’s highly successful EVA, "Today was the first EVA with the Gamma Ray Spectrometer. We measured the natural amounts of radioactive potassium, uranium, and thorium in the regolith 1000 m south of the Hab, as well as conglomerates at Robert’s Rock Garden, and sandstone and regolith at a location that from orbit looks redder that some of the surrounding rocks. Ratios of these different elements can tell us about predicted mineralogy, changes in lithology, and even if Redox conditions has been pervasive in this area."

EVA Crew Leader Sarah is currently a Geology Ph.D. candidate at the University of Kansas, focusing her research on analog materials for Mars and Ocean Worlds using Raman spectroscopy. She worked on developing a chemical calibration for chlorite minerals using Raman Spectroscopy, which also has implications for Mars research. Sarah also interned at NASA’s Jet Propulsion Laboratory in the Origins and Habitability Lab in the summers of 2021 and 2022. Sarah was an active member on the ChemCam Instrument Team on the Mars Curiosity Rover and spent three summers at Los Alamos National Laboratory. Sarah is currently a Geology Ph.D. candidate at the University of Kansas, focusing her research on analog materials for Mars and Ocean Worlds using Raman spectroscopy. During her graduate studies, Sarah also interned at NASA’s Jet Propulsion Laboratory in the Origins and Habitability Lab. In 2018, Sarah graduated from Kansas State University, with three bachelor’s degrees in Chemistry, Geology, and Geography. Throughout her undergraduate years, Sarah spent three summers at Los Alamos National Laboratory.