Adaptive Reconnaissance Golay-3 Optical Satellite (ARGOS ADAPTIVE RECONNAISSA k Prof David W. Miller ★ ★ ARGOS 16.684 Y-3 OPTICAL SAT
Chart: 1 Adaptive Reconnaissance Golay Adaptive Reconnaissance Golay -3 Optical Satellite 3 Optical Satellite (ARGOS) (ARGOS) Prof David W. Miller Prof David W. Miller
ARGOS Overview Angular Resolution at 2=550 nm: 5 arcsec Wavelength Regime 400-700 nm FOr (Field-of-Regard): 120(full cone) FoV(Field-of-view)-min 3x3 arcmin Moon SNR 100(Min) Pointing Accuracy: +/ -10 arcsec Autonomous Operation >1 hour Goal Demonstrate the feasibility First field operation in May Interferometry Wireless Surrogate technology COMM Ground station Station M. LT Frictionless Air Bearing RWA
Chart: 2 ARGOS Overview ARGOS Overview ISS Moon Frictionless Air Bearing RWA Surrogate Ground Station M.I.T. Angular R e s olution at λ=550 nm: 0.35 arcsec Wavelength Regime: 400-700 nm FOR (Field-of-Regard): 12 0° (full cone) FOV (Field-of-Vie w)-min: 3 x 3 ar c min SNR 10 0 (Min) Pointi n g Accuracy: +/- 10 arcsec Autonomous O peration: > 1 hour Angular R e s olution at λ=550 nm: 0.35 arcsec Wavelength Regime: 400-700 nm FOR (Field-of-Regard): 12 0° (full cone) FOV (Field-of-Vie w)-min: 3 x 3 ar c min SNR 10 0 (Min) Pointi n g Accuracy: +/- 10 arcsec Autonomous O peration: > 1 hour Wireless COMM Station First field operation in May First field operation in May Goal : Demonstrate the feasibility of Interferometry technology Goal : Demonstrate the feasibility of Interferometry technology
Full structure
Chart: 3 Full Structure Full Structure
Sub-Aperture Manufacturing TAKAHASHI 8-inch High Precision(RMs WF errors 1/20 n)Telescope TAKAHASHI Designed optimized achromatic doublet to convert a focal telescope to afocal with Magnification m=10 FK51/ BaK2 Final Design △CTE5.3 0.0027 RMS Error FK51 BaKe -Some sensitivity to thermal shock -Manufacturable tolerances
Chart: 4 Sub-Aperture Manufacturing Aperture Manufacturing TAKAHASHI 8-inch High Precision (RMS WF errors 1/20 λ) Telescope Final Design Designed optimized achromatic doublet to convert a focal telescope to afocal with Magnification m=10 •FK51/BaK2 –∆ CTE 5.3 –0.0027 RMS Error –Some sensitivity to thermal shock –-Manufacturable tolerances •FK51/BaK2 –∆ CTE 5.3 –0.0027 RMS Error –Some sensitivity to thermal shock –-Manufacturable tolerances FK51 BaK2
Relay optics design 1. Sub aperture 2. Collimator 3. FSM+ODL 4. Pyramidal Mirror The Advantages of Two Mirror Design 5. Beam Combiner the cost, the controller complexity 6. CCD less reflectance loss, smaller possible misalignment errors, compactness 川5十
Chart: 5 Relay Optics Design Relay Optics Design 1. Sub Aperture 2. Collimator 3. FSM+ODL 4. Pyramidal Mirror 5. Beam Combiner 6. CCD 1 2 3 4 5 6 The Advantages of Two Mirror Design the cost, the controller complexity, less reflectance loss, smaller possible misalignment errors, compactness The Advantages of Two Mirror Design the cost, the controller complexity, less reflectance loss, smaller possible misalignment errors, compactness