2018_02_12_MAIA_DRFP_Comments_and_Responses.pdf

# Contract/SOW Reference Industry Question/Comment Government Response

Exhibit A, SOW, Section 1.2, Definitions

Please confirm that, when used in the DRFP, “instrument” is synonymous with “payload.” Therefore, mass and power requirements are for the entire payload, not just the optical instruments.

Yes, the terms "payload" and "instrument" are synonymous. Reference the definition of "MAIA Instrument" in Exhibit A, SOW, Section 1.2, Definitions.

Exhibit C, MRD, Section 2.5.5;

Attachment 3.4, ICD, Section 3.11.4.2

Does the payload store all collected mission science data in its own memory or must the spacecraft bus store it? (Paragraph 2.5.5. of the DRFP MRD specifies that the Spacecraft request, receive, and store data from the instrument, but does not indicate whether or not that is only during downlink. Paragraph 3.11.4.2 of the ICD can be interpreted to mean either that the instrument collects imagery data when commanded, or that the instrument stores and forwards previously collected data when commanded.)

The payload (instrument) has the ability to store up to two days worth of science data. It is expected that data will be downlinked within that time. The instrument will store and forward collected science data when commanded. The spacecraft will buffer and/or store data as needed to transmit the science data to the ground.

Unlike science data, housekeeping data is directly transmitted to the spacecraft to satisfy real time contact requirements during telecom passes.

Exhibit C, MRD; Attachment

3.4, ICD

Please confirm whether or not the instrument must always scan with the velocity vector in the +X direction. That is, can it scan with the velocity vector in the –X direction.

The MAIA Instrument can operate with the spacecraft velocity vector either in the +X or ‐X direction. The scan axis can accommodate either option. However, the direction of travel must be specified pre‐launch and cannot be changed during the mission.

4 N/A Is the host spacecraft required to have a design life of at least 6 years, to be available for the baseline mission duration plus all options?

Offerors shall ensure any proposed approach to meeting the Government's requirements cover the base and all potential option periods.

Exhibit C, MRD, Section 2.5.3, L2‐H51

Is the survival power (50W) for when the instrument is neither calibrating nor operating?

Yes, the survival power is for when the instrument is neither calibrating nor operating.

Exhibit C, MRD, Section 2.5.3, L2‐H14

Is the 100W of peak power for simultaneous operation of the calibration mode and the operating mode?

No. The peak power condition is during observing mode with both the scan and pan gimbals operating.

7 N/A What is the development schedule and current maturity level of the instrument hardware?

The MAIA Instrument is currently scheduled to have a PDR in April 2018 and CDR in September 2018. Note that the MAIA Instrument schedule is always subject to change.

8 Exhibit C, MRD, Section 2.5 Please confirm that the instrument gimbals handle all pointing, i.e. the host just has to maintain +Z nadir and control pitch and yaw as specified in the MRD and the gimbals will do the rest of in‐track and/or cross track pointing.

Correct. The instrument gimbals handle all necessary pointing beyond what is required of the spacecraft in Exhibit C, MRD Section 2.5.

Exhibit C, MRD, Section 2.5, L2‐ H6, L2‐H45, L2‐H7, L2‐H54, and L2‐H8

What are pointing (control and knowledge) requirements for the sun‐calibration on the OBC over the pole?

The pointing control and knowledge required of the spacecraft during sun‐ calibration are the same as what is required during observation modes as described in Exhibit C, MRD section 2.5, L2‐H6, L2‐H45, L2‐H7, L2‐H54, and L2‐H8.

Exhibit C, MRD, Section 2.5.3, ID L2‐H13; Attachment 3.4, ICD, Section 3.3, L3‐EICD4

ICD 3.3 states that MAIA OAP is 60 W, other place it states 85 W (MEV); please clarify OAP.

The value from the MRD, 85 W orbital average power, should be used. The ICD value will be updated for the Final RFP to reflect this 85 W.

Clause 2.16, Milestone Payments; Exhibit D, Milestone Payment Schedule

In the event of a launch failure or on‐orbit anomaly, will the contractor be required to relinquish any milestone payments that have already been made?

All milestone payments made by the Government are final. However, nonperformance by the Contractor could affect all future milestone payments not already paid.

80LARC18R0004

Multi‐Angle Imager for Aerosols (MAIA) Hosting Services Industry Questions/Comments and Government Response

Questions/Comments and Government Responses Part I ‐ Draft RFP