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Nocturnal Synchronous polar orbiter utilizing ACES IVF and ICE power sources and Distributed Launch

May 4, 2017

Nocturnal Synchronous polar orbiter utilizing ACES IVF and ICE power sources and Distributed Launch

Nocturnal Synchronous polar orbits are defined as the opposite of Sun-synchronous polar orbits.It envisioned as a method to conceal from observation spysats.These orbits are not ideal for large expensive satellites but might be worthwhile as ride share on ACES upper stages as a power source to replace solar panels.

Possibly we could do a nonfunded RFP to find out from the scientific community of possible uses of permanently shaded spacecraft for earth observation, astronomy, and intelligence gathering.

(A) What is the maximum polar orbit that can stay in darkness? (B) In some cases, spacecraft illumination might be allowed at Apogee in remote southern ocean areas.(C) What is the boil off ratio for ACES in a Nocturnal orbit?

(D) CONOPS; An ACES stage fully fueled delivers a payload to Polar orbit, after Spacecraft separation ACES maneuvers into a Nocturnal polar orbit with rideshare IR instruments or a secondary payload.IVF and ICE powers and cools the IR instruments.LH2 cools LNe2 to cool IR instruments (see the ACES Spider proposal) same could be claimed for an astronomy instrument.Future ACES to polar orbit refuel the Nocturnal ACES in a form of distributed Launch.

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