AstroMast Continuous Longeron Mast History

Transcription

1 AstroMast Programs

2 AstroMasts Astro has flown deployable AstroMasts on many Major Space Programs These have included major NASA and DOD programs such as GOES, DMSP and Milstar All flights have been successful DMSP still has remaining masts on the ground ready for flight AstroMast Continuous Longeron Mast History Program Masts Delivered Masts Flown Purpose Flew Customer Type Length S Magnetometer 1974 Air Force Lanyard 6-meters Voyager 3 3 Magnetometer 1977 JPL Lanyard 13-meters Nova 1 1 Gravity Gradient 1981 RCA Lanyard 25 ft Solar Max 1 1 Antenna 1980 Sperry Lanyard 6 ft Dynamic Explorer 3 3 instruments + Magnetometer 1981 RCA Lanyard 20 ft INSAT 4 4 Solar Sail Ford Lanyard 43ft Olympus 2 2 Solar Array 1984 Fokker Canister 28ft CRRES 1 1 Spectrometer 1990 Ball Lanyard 9-meters Milstar Milstar LMSC Canister 30 ft Mars Observer 2 2 Magnetometer 1992 GE/LMCS Canister 6-meters GOES 5 5 Solar Sail Loral Lanyard 53 ft MTSAT 2 2 Solar Sail 2006 Loral Lanyard 65-ft DMSP 5 2 Magnetometer Lockheed Lanyard 6-meters MRO 1 1 Gamma Ray Spectrometer 2005 Lockheed Lanyard 6-meters

3 Solar Sail MTSAT/GOES/INSAT 9-Inch AstroMast Lanyard Deployed 17-Meter Length (GOES) 13-Meter Length (INSAT) Motor Controlled 10-Foot Solar Torquer Sail Aluminized Kapton Customer: Space Systems/Loral

4 Antenna Systems FORTÉ AstroMast deploys quadrapole antenna along spacecraft yaw axis Titanium Antenna element Canister mounts to deck of spacecraft 10-inch mast: self deploying, straight (no pretwist), root deploying with torsion spring assist at root Controlled by eddy current damper and lanyard Weight kg (34.76 lb) Customer: Los Alamos National Laboratory

5 Instrument Boom DMSP Magnetometer 10-Inch AstroMast Lanyard Deployed 6-Meter Length Eddy Current Damper Controlled Supports Magnetometer Instrument Customer: Lockheed Martin

6 Solar Array Actuator MILSTAR AstroMast 10-inch-diameter AstroMast Canister deployed 16-meter length Brushless motor controlled Solar array deployer Customer: Lockheed Martin

7 Astromasts Unidirectional high strain glass-epoxy members High strength/weight 0.07% packing factor Non-Magnetic Mast can self deploy as in the DMSP Magnetometer Boom Mast can be nut-driven as in the Milstar Solar Array deployer to provide high deployment force Milstar DMSP Principles Longerons coil down for stowage The Battens are relaxed when stowed The longerons self straighten when deploying, tensioning diagonals which bow the battens and preload the resulting truss structure

8 MTSAT/GOES/INSAT 9-Inch AstroMast Lanyard Deployed 17-Meter Length (GOES) 13-Meter Length (INSAT) Motor Controlled 10-Foot Solar Torquer Sail Aluminized Kapton Customer: Space Systems/Loral

9 MARS Observer GRS Boom 10-Inch AstroMast Canister Deployed Deployed 6-Meter Length Brushless DC Motor Deployed Supports Gamma Ray Spectrometer Customer: Space Systems/Loral

10 DMSP Magnetometer Boom 10-Inch AstroMast Lanyard Deployed 6-Meter Length Eddy Current Damper Controlled Supports Magnetometer Instrument Customer: Lockheed Martin

11 FORTÉ Antenna System Feature Astromast deploys quadrapole antenna along spacecraft yaw axis s Ten canisters stow antenna element in wrapped helix Antenna element is titanium wire Canister mounts to deck of spacecraft Simple eight-hole interface to spacecraft, six holes on tip plate 10-inch mast: self deploying, straight (no pretwist), root deploying with torsion spring assist at root Tie-rod launch restraint HOP actuator initiation Deployment controlled by eddy current damper and lanyard Weight budget: kg (34.76 lb)

12 MILSTAR AstroMast 10-inch-diameter AstroMast Canister deployed 16-meter length Brushless motor controlled Solar array deployer Customer: Lockheed Martin Astro Aerospace

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