We received many great questions during the Q&A Webinar. If you missed the webinar, you can view the recording here: https://www.herox.com/NASApayload/update/3243

Here are the answers to a number of questions that we ran out of time for:

Q: Is an expandable design acceptable?
A: Yes

Q: Do all functional parts (compounding pharmacy, etc) have to be in one payload?
A: Yes

Q: In the Small Payload User Guide it is said that radioactive materials are forbidden but some exceptions can be made. What does this mean?
A: Certain radioactive materials may be possible to be used in very small amounts for particular instruments. We would need to work the handling protocols.

Q: What about deployable?
A: These are ok

Q: Can we add team members to our team for Phase 2?
A: Yes, you can change your team for Phase 2. Participation in Phase 2 is open and not restricted to those who participated in Phase 1.

Q: Knowing that part of the rover will come into contact with the lunar regolith, how will you ensure that it does not infiltrate the rover?
A: This is an issue the rover supplier will be responsible for

Q: Why would the rover not have a kind of hollow protected for the camera of the Martian ground?
A: This would reduce the contacts with the lunar regolith. Some rovers could accommodate this, for others it is not possible.

Q: Other than dust and pressure, what other elements would the rover/payload/ be exposed to at different times?
A: The ambient operating temperature is quite high. The various radiation sources discussed in the call could be an issue.

Q: Radiative BC stated as 80 C for most surfaces of payload. If the main sensor accuracy degrades at h/s temp of 70-75 C, is it still possible to do useful science?
A: This depends on how much it degenerates. It is possible this could be useful.

Q: To what extent are "exceptions" by program office used in judging, e.g. a standard 16-gram CO2 cartridge used in an otherwise perfect 100 score Challenge entry?
A: Something with an exception would probably not get a perfect score. It would be up to the individual reviewers.

Q: What are the tolerances/relaxation allowed for working & storage temperatures if some of the components are not able to meet NASA specifications?
A: This varies from case to case. The ambient will be very close to the specification, so if the system will not work at 80C, it will probably not work on the mission.

Q: What is the concept of operations for element sampling? Particular locations? Distances from landing? Rate of sampling that is preferred?
A: This is dependent on the specific instrument. This should be specified if there is an optimum use.

Q: Are we going to bring any sample or the payload back to earth?
A: The payload should complete the analysis. Samples will not go back to earth for analysis.

Q: Is there a standard format for the outgoing message from the rover, that is produced by the payload?
A: No. We are still exploring different vehicles for the rover so a standard format has not been defined.

Q: Is it necessary to provide engineering CAD drawings of all the instrumentation that goes inside the payload?
A: No. Providing a CAD drawing will help the judging panel understand your submission. While a diagram is encouraged, it is not required.

Q: What will the existing cameras on the rover be used for? E.g. is it only for navigation?
A: Navigation and some observation.

Q: Can you send raw data back to a base station/earth for further processing or is the payload expected to return results/abundances of minerals etc?
A: Typically, science data processing is done on the ground. Onboard processing is performed only when the data volume exceeds available downlink bandwidth and/or data storage capabilities on the spacecraft. If the data volume of your payload exceeds downlink capabilities then the computational resources needed for onboard processing would need to be included. Please note that the instruments would not come back to earth.

Q: Can you clarify what type of radioactive materials might be considered (ie gamma/beta/alpha) and activity levels (mCi?)
A: This will be done on a case by case basis.

Q: Will the ice-soil sample be sensed or collected in the lunar dark at 100 R? Can the sample be moved to sunlight to melt?
A: This is very dependent on the landing location. Since we do not control the landing location, it is safe to assume that cold samples could not be moved into sunlight.

Q: What are the predicted ionizing radiation levels in the work area?
A: We do not know. They appear to be highly variable. Examine the literature.

Q: What are the connectivity requirements?
A: This question needs clarification.

Q: What could be the range of measurement for VOC(Methan)? In terms of either PPM or PPB?
A: We do not know.

Q: How does the payload/rover get activated on the Moon's surface?
A: It will be through a command sequence from Earth.

Q: Please specify the ground clearance of the payload from the lunar surface. Is there an ideal placement of the payload on the rover?
A: The ground clearance will be about 4 cm. You can place the payload wherever it is most appropriate for your designs.

Q: Can the award winnings be used to purchase lab equipment in support of the payload? Can the award winnings be used to pay for tuition or student stipends?
A: Yes. The prize money can be used however you see fit.

Q: Is there a standardized specification for the communications interface to the rover's CPU?
A: Not at this time.

Q: Can I participate as a team from my company that I work for?
A: Yes, companies are eligible to participate as long as they comply with all requirements in the Challenge-Specific Agreement.

Q: Is there IP networking connection available to control and send data from payload?
A: This may be possible. This portion of the mission has not been completely defined at this time.

Q: Outgassing of plastics was mentioned. Where does one find more info on lunar contamination?
A: NASA Goddard has an outgassing database that should be publically available. The issue is not so much Lunar contamination, but material depositing on optics. For lunar contamination, NASA Planetary Protection guidelines should be available.

Q: Is it likely that the Rover video system could guide a sensor placement to within 1 cm?
A: It is possible.

Q: Is the rover supposed to be autonomous or is it remotely controlled through other interfaces?
A: Both options are under consideration.

Q: Should we expect the payload we design to be autonomous or is there input from home base permitted? A: Simple triggering inputs could be provided from Earth.

Q: Can we use printed electronics components (if adequately protected)?
A: Yes