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Remote Sensing the Upper Atmosphere with Cubesats at U of I Gary Swenson Professor Emeritus

Remote Sensing the Upper Atmosphere with Cubesats at U of I Gary Swenson Professor Emeritus Remote Sensing and Space Science January 31, 2011. Science Objectives. Quasi-monochromatic (left) and chaos (right). O 2 Herzberg, I’. -phase. O 2 A, T’. VWL. O 2 A, I ’ ,. HWL.

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Remote Sensing the Upper Atmosphere with Cubesats at U of I Gary Swenson Professor Emeritus

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  1. Remote Sensing the Upper Atmosphere with Cubesatsat U of I Gary Swenson Professor Emeritus Remote Sensing and Space Science January 31, 2011

  2. Science Objectives

  3. Quasi-monochromatic (left) and chaos (right)

  4. O2 Herzberg, I’ -phase O2 A, T’ VWL O2 A, I’, HWL AGW phase fronts and wave phase information versus altitude

  5. CONTINUED- Coarse 2-D imager 2. Alternatively, one channel could have 4 pixels (i.e. 4 Hamamatsu PMT modules) Cross section, normal to the orbit plane is shown below. Added Resource Cost: Power 0.6 W Mass ~750 g Data ≤1.42 Mb/day 4 PMT modules Fiber optic coupling (4 pixels) Optics, with filter, lens 4 viewing directions, ~ ± 6o full angle, perpendicular to the orbit plane

  6. O2 emission and P-R branch filters 760.5 CWL filter O2 (b-X) 0-0 763.2 CWL filter 150K 200K 250K Wavelength (nm)

  7. Hardware Implementation: Sensors • Photomultiplier tubes: • 4 Hamamatsu H10862 PMTs • 1nm filters centered at 760.5, 763.2nm for (0-0) band P and R branch • 2nm filter centered at 770nm (background channel) • Bandpass filter from 255-292nm to measure O2 Hertzberg band • Provides T’/T, I’/I, vertical wavelength (for λx > 150 km)

  8. Mission Implementation • Observe O2 (0-0) rotational emission and O2 Herzberg emission (nadir viewing) • Brightness perturbation measurement (I’/I) provides wave amplitudes • Ratio of O2 P and R branch provides rotational temperature and wave amplitudes (T’/T) • Phase differences between (I’/I) and (T’/T), and between O2 (0-0) and Herzberg bands, provide vertical wavelength measurements

  9. LAICE Satellite Meeting, Cincinnati, OH, VT and U of I, October 29-30, 2012 Back row,left to right: Rehan Syed (VT), Ryan Davidson, (VT), Erik Kroeker, (UI), Patrick Haddox, (UI), Alex Ghosh (UI), Troy Petersen (UI), Lucy Fanelli (VT). Front row, left to right: Robbie Robertson (VT), Greg Earle (VT), Gary Swenson, (UI), John Westerhoff, (UI), Chad Fish (VT)

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