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Nanosat Maneuvering and Orbital Transfer Stage

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC18P2113
Agency Tracking Number: 188823
Amount: $124,884.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: T1
Solicitation Number: STTR_18_P1
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-27
Award End Date (Contract End Date): 2019-08-26
Small Business Information
1195 Linda Vista Drive, Suite F
San Marcos, CA 92078-3820
United States
DUNS: 079693059
HUBZone Owned: Yes
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Greg Berg
 (855) 727-2245
Business Contact
 David Brynes
Phone: (619) 750-4484
Research Institution
 University of Southern California
3720 S. Flower Street
Los Angeles, CA 90089-4019
United States

 Federally funded R&D center (FFRDC)

The proposed innovation is a modular, high-performance orbital transfer stage (OTS) vehicle for Nanosats and Microsats launched as secondary payloads and require maneuvering to their desired orbits. The OTS has a modular design, and can accommodate payloads ranging from 5kg 3U size Nanosats to >50kg Microsat size vehicles. The propulsion system uses hydroxyl-terminated polybutadiene (HTPB) fuel with nitrous oxide (N2O).  These “green propellants” that are sufficiently safe for ridesharing, will provide density impulse over 10-15% higher than a hydrazine system, and are capable of near-impulsive ΔV maneuvers to support launch vehicle collision avoidance operations, final operational orbit insertion, or tactical inclination/plane change maneuvers. The proposed system leverages additive manufacturing as the primary fabrication process incorporating modular tank and thruster configurations with integral Reaction Control Subsystem.  Basic Propulsion “modules” can be combined to enable various size vehicles and missions.  The basic concept for the OTS “core” configuration is also amenable to integrating the hybrid propulsion directly into a Nanosat bus. The proposed solution will allow lower cost access to space than existing commercial monopropellant system liquid stages, uses a fraction of the power of electric propulsion systems, and will be much safer than systems that use toxic and/or explosive propellants.  The OTS will have complete capability (power, guidance and navigation, etc.) to position the Payload spacecraft into their desired orbits. 

* Information listed above is at the time of submission. *

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