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Ground-Based Optical Observations at Poker Flat Research Range

This research project conducted at Poker Flat Research Range involved ground-based optical observations to study the effects of the Midnight Sun in Stuart Creek, Alaska. The study utilized various optical assets such as the Poker Digital All-Sky Camera (PKR DASC) and the All-Sky Meridian Spectrograph (Digital MSP) to collect data on e-energy flux and map the electromagnetic energy in the area. The observations were coordinated with researchers Marilia Samara and Robert Michell. Real-time and archive data access is available through the provided websites.

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Ground-Based Optical Observations at Poker Flat Research Range

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  1. GI & Poker Flat Research Range ground-based optical observations Donald Hampton Research Assistant Prof. Geophysical Institute Optical Science Manager Poker Flat Research Range dhampton@alaska.edu (907)455-2256 With support from Marilia Samara & Robert Michell (GSFC) Insitu Insight UAS Stuart Creek Alaska Midnight Sun, 22 June, 2007

  2. Station Locations Optics + Mag Mag Only

  3. Optical Assets Notes: 1 Solid-state meridian spectrograph 2 Local observer required 3 Coordinated with M. Samara and R. Michell

  4. Poker Digital All-Sky Camera(PKR DASC) • Developed by KEO scientific • Andor IXON+ EMCCD • 1k x 1k pixels • 16-bit digitization • Telecentric optical system with filter wheel • First deployed Sep 2007 • Unfiltered for 07/08 • Typical operations is three-filters – 427.8 nm, 557.7 nm, 630.0 nm at a 12.5 sec cycle time

  5. Poker DASC - Mapping

  6. Mapping of e- energy flux See poster SM51G-4337 (Conde et al.) 50 km cell size 400 km

  7. Optical Assets Notes: 1 Solid-state meridian spectrograph 2 Local observer required 3 Coordinated with M. Samara and R. Michell

  8. EMCCD single-filter All-sky Sample rate: 3 frames/sec

  9. Optical Assets Notes: 1 Solid-state meridian spectrograph 2 Local observer required 3 Coordinated with M. Samara and R. Michell

  10. All-sky Meridian Spectrograph “Digital MSP” All-sky lens Slit Andor CCD • Refurbished in 2009 as part of MSP upgrade study • Filter wheel removed • 600 line/mm grating replaces 1200 line/mm grating • 50 mm camera lens replaces 85 mm lens • 200 => 500 micron slit • Has now replaced MSP • 15 second sample rate • 6 channel operation • 427.8 nm (N2+) • 486.1 nm (H+) • 520.0 nm (NI) • 557.7 nm (OI) • 630.0 nm (OI) • 670.0 nm (N2) Collimating lens Filter Wheel Grating

  11. MSP Keograms

  12. Real-time and archive access Real time data at: http://optics.gi.alaska.edu/ Archive data at: http://optics.gi.alaska.edu (summaries) http://amisr.asf.alaska.edu (raw and secondary)

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