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Appendix C: Advantages and Disadvantages of Ground- and Space-Based Options for Infrared and Visible Observations of Near Earth Objects
Pages 54-55

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From page 54...
... Near-Earth Object • Relatively low cost (LSST already under Survey Act limit construction) Ground-Based Visible Characterization • Can provide improved H value, • Field of view impractical for searches; Using Photometry and Spectroscopy taxonomy, mineralogy, and tighter effective only for characterizing known constraints on albedo; light curves objects provide rotation rate, constrain shape, may provide evidence of satellite Ground-Based Radar Characterization • Can provide sizes of known objects if • Impractical for searches; effective only (e.g., Goldstone, Arecibo)
From page 55...
... Brown, Jr. Near-Earth Object Survey Act limit • Tradeoff between aperture size, cost, and contribution beyond LSST • Potentially costly at approximately $550 million plus launch • Options to reduce cost below that of Discovery missions exist but mean longer time to achieve completion Space-Based Visible Survey (SmallSat • Lower cost than other options -- • Insufficient sensitivity to reach George platform)


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