492-pp4 - UNIVERSITY OF SOUTH ALABAMA Planetary Geology...

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1 Extraterrestrial Planets and Comet ES 492: Lecture 4 UNIVERSITY OF SOUTH ALABAMA Dr. Doug Haywick Department of Earth Sciences Comet Hartley 2 ht p:/ apod.nasa.gov/a Origin of sediment Planetary Geology Definition: The geological study and classification of extraterrestrial objects 300+ (January 18, 2011) 1500+ (February 4, 2011) NASA’s Kepler Mission NASA Presentation Slide NASA’s Kepler Mission System Characteristics: Spacebased Photometer: 0.95-m aperture Primary mirror: 1.4 meter diameter, 85% light weighted Detectors: 95 mega pixels (21 modules each with two 2200x1024 pixel CCDs) Bandpass: 430-890 nm FWHM Dynamic range: 9th to 16th magnitude stars Fine guidance sensors: 4 CCDs located on science focal plane Attitude stability: <9 milli-arcsec, 3 sigma over 15 minutes. Avionics: Fully block redundant Science data storage: >60 days Uplink X-band: 7.8125 bps to 2 kbps Downlink X-band: 10 bps to 16 kbps Downlink Ka-band: Up to 4.33125 Mbps Photometric One-Sigma Noise Designed Performance: Total noise with solar-like stellar variability and photon shot noise for an mv=12 star: < 2x10-5 No mechanisms other than a one-time ejectable cover and three focus mechanism for the primary mirror. Flight segment and instrument mass: 1071 kg, maximum expected (10/06) Flight segment and instrument power: 771 W, maximum expected (10/06)
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2 NASA’s Kepler Mission NASA’s Kepler Mission NASA’s Kepler Mission Current field of view of mission NASA’s Kepler Mission Kepler 6b Kepler’s photometer is very sensitve and measures the drop in stellar emission as planet(s) pass in front of a star NASA’s Kepler Mission NASA Presentation Slide NASA’s Kepler Mission NASA Presentation Slide
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492-pp4 - UNIVERSITY OF SOUTH ALABAMA Planetary Geology...

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