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Satellite Tracking Using a Portable 8

Satellite Tracker processes Two Line Element Sets (TLES) to predict satellite orbits. ... With better software, it will successfully track satellites ...

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Satellite Tracking Using a Portable 8

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    Slide 1:Satellite Tracking Using a Portable 8” Aperture Telescope

    July 26, 2006 Jayson Nakakura University of Hawaii at Manoa

    Slide 2:Trex Enterprises’ Maui

    Kahului, Maui Mentors Riki Maeda and Daron Nishimoto US Government Support Defense Homeland Security Force Protection Projects CMOS Image Sensors Adaptive Optics Deployable Tracking Systems

    Slide 3:Deployable Tracking System

    Why Track Satellites? Need to know satellite activity Friendly or Spy? What is it doing? Where is it looking? Quantity Many transportable telescopes Not dependent on observatories (i.e. AEOS) Tracking with Low Residual Error Keeping Satellites Centered in the Field of View (FOV) as they orbit over head

    Slide 4:Conditions for Success

    Deployable Tracking System Mobility Accuracy Resolution Self Leveling North Finding GPS Enabled High Slew Speeds Precise Satellite Orbiting Data Large Mirror High Speed Camera

    Slide 5:Meade LX200GPS

    Slide 6:Satellite Tracker

    Satellite Tracker processes Two Line Element Sets (TLES) to predict satellite orbits. The telescope uses this data to point towards and slew with the passing satellite. The predicted pass of COSMOS 1782

    Slide 7:Lunar Planetary Imager (LPI)

    Color CMOS Chip with a 640 x 480 pixel resolution

    Slide 8:LPI Imaging

    Slide 9:Instantaneous Field of View (IFOV)

    Slide 10:Albireo

    Slide 11:Albireo - 3x Magnification

    Slide 12:Conditions for Tracking

    Weather Terminator The time period when satellites reflect sunlight, making them visible A few hours after sunset A few hours before sunrise Satellite Magnitudes Visibility of the satellites

    Slide 13:Finding Residual Error

    Take about 100 frames Find de-centered distances in arc-seconds Calculate average with a standard deviation

    Slide 15:Autostar II

    Used for Manual Tracking Controls telescope slew direction Controls telescope slew speeds

    Slide 16:International Space Station (ISS)

    Slide 17:Tracking a Plane

    Slide 18:Average Residual Error

    Slide 19:Conclusion

    Deployable Tracking System With better software, it will successfully track satellites With a much larger aperture, it should successfully image satellites Is Satellite Tracking Feasible? Yes No Able to slew with satellites Able to manually track satellites Able to image Able to manually track planes Unable to center when using Satellite Tracker Improvements? Satellite Tracker telescope controlling software Time

    Slide 20:Thank You

    Malika Moutawakkil Bell Lisa Hunter Hilary O’Bryan Riki Maeda Daron Nishimoto Wes Friewald Justin O’Brien John Hirata Suzanne Burns Uncle Kahu Charlie Kauluwehi Maxwell Sr.

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