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Attitude Determination and Control Stephen Levin-Stankevich Jeff Parker Tim Shilling.

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Presentation on theme: "Attitude Determination and Control Stephen Levin-Stankevich Jeff Parker Tim Shilling."— Presentation transcript:

1 Attitude Determination and Control Stephen Levin-Stankevich Jeff Parker Tim Shilling

2 Internal Hardware Magnetometers Sun Sensors Horizon sensors Magnetic Torquers Rate Gyros

3 Electrical Safety Hardware will not receive power until given by Power subsystem. Wire sizing and circuit protection requirements will be met per NASA TM 102179.

4 Fracture Control Parts will meet requirements for low-risk fracture classification –Failure will not result in catastrophic hazard to the space shuttle. –All materials including hardware components and fasteners will be low-risk acceptable per NASA-STD-5003 or acceptable under a materials usage agreement (MUA)

5 Parts and Materials Instruments will meet safety specifications for limited outgassing of CVCM <.1% and TML < 1%. Corrosion requirements will be met through the use of space-rated materials or surface treatments.

6 Gravity Gradient Boom Tether Material –Three braided strands Spectra 1000 material 0.003 inches thick Rip-stop protection, not load-bearing –Plastic sheath Low-density polyethylene tape 1 inch wide, 0.005 inches thick 0.002173 kg/m 3 Total Mass less than 0.045 kg.

7 Outgassing In-depth analysis of outgassing properties for tether material required. Required properties are CVCM <.1% and TLM < 1%.

8 Other Concerns Prior to deployment the tether does not bear the load of the tip mass. Non-Fracture Critical per low-released mass part requirements. Safety concerns dealing with deployment or stowage of the tether and mass will be addressed by the structures/deployables team.


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