Space Environment I
Introduction to Space Systems and Spacecraft Design
Space Systems Design
Space Environment - I
How Does It Effect Your S/C Design?
•Structure
•Electronics
•Solar Panels
•Radio Communications
•Notes to consider
―Deep space temperature range 4 deg K to 5800deg K.
―Radiation effects – worse than any place else in LEO orbit.
―Best radiation resistant FPGA - Actel
Introduction to Space Systems and Spacecraft Design 2
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Space Environmental Effects
Introduction to Space Systems and Spacecraft Design 3
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Consider some things in
the environment.
Introduction to Space Systems and Spacecraft Design 4
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
How about the earth’s magnetic fields?
Introduction to Space Systems and Spacecraft Design 5
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
How about the sun’s effect on earth
and in space?
Introduction to Space Systems and Spacecraft Design 6
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
What the Sun Does
Introduction to Space Systems and Spacecraft Design 7
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
How about the sun’s effect on earth
and in space?
Introduction to Space Systems and Spacecraft Design 8
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
How about the earth’s magnetosphere?
What causes it?
Introduction to Space Systems and Spacecraft Design 9
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Introduction to Space Systems and Spacecraft Design 10
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Anomalies caused by
Solar Storms
Introduction to Space Systems and Spacecraft Design 11
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
19 November 2003
ANOMALIES RELATED TO RECENT SOLAR ACTIVITY
Collected by David Webb from various sources for events arising from recent
flares, CMEs, and geomagnetic storms.
david.webb@hanscom.af.mil
Oct. 23: Genesis solar wind satellite at L1 entered safe mode. Normal
operations resumed on Nov. 3.
Introduction to Space Systems and Spacecraft Design 12
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Nov. 2: Chandra observations halted again autonomously due to radiation.
Resumption of observations will be delayed for days.
Nov. 6: Polar TIDE instrument reset itself and high voltage supplies were
disabled; recovered within 24 hr.
Mars Odyssey spacecraft commanded out of Safe mode; operations
nominal.
General:
Satellite operators: Satellites put into safe modes, solar panels rotated,
operations reduced.
Power grid managers: Less use of and switching between systems.
Introduction to Space Systems and Spacecraft Design 13
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Van Allen Radiation Belts
Introduction to Space Systems and Spacecraft Design 14
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
What is different here?
Introduction to Space Systems and Spacecraft Design 15
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
What is different here?
Introduction to Space Systems and Spacecraft Design 16
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Introduction to Space Systems and Spacecraft Design 17
Space Systems Design Some slides by Dr. J. Cutler – Univ. of Michigan
Space Environment - I
Questions?
Introduction to Space Systems and Spacecraft Design 18
Space Systems Design