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Introducing the A stronomical D igital V ideo S ystem (ADVS)

Introducing the A stronomical D igital V ideo S ystem (ADVS). Tony Barry, Dave Gault, and Hristo Pavlov WSAAG and IOTA Presented to International Occultation Timing Association 2012 AGM Friday, 19 th October 2012 (US) Saturday, 20 th October 2012 (AU).

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Introducing the A stronomical D igital V ideo S ystem (ADVS)

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  1. Introducing the Astronomical Digital Video System (ADVS) Tony Barry, Dave Gault, and Hristo Pavlov WSAAG and IOTA Presented to International Occultation Timing Association 2012 AGM Friday, 19th October 2012 (US) Saturday, 20th October 2012 (AU)

  2. The Working Group on Scientific Video AstronomyTony Barry, Dave Gault and Hristo PavlovFirst meeting Easter Monday, 25th April 2011

  3. ADVS Overview

  4. Video Signal PathsConventional (interlaced) The tortured signal path

  5. ADVS features at a glance Astronomical Digital Video System; • is all digital • has only one CCD read noise per image • is progressive scan • image start, mid. and end times to +/-0.001 seconds UT • exposure range 30 frames per second to 8 seconds per frame • requires no Instrument Delay compensation • video easily converted to FITS, complete with metadata • time OSD not embedded on the image, not blocking FOV • (eventually) remote/automated controllable • has complete control over gain, gamma and offset • means you don't have to deal with codecs • uses new .adv file format • .adv file can be repaired if not closed properly • has a choice of 3 cameras @ 3 price ranges • developers are very nice guys, and modest too... :-)

  6. ADV File Format and Considerations FITS ADV STREAM1 (IMAGES/BAND1) STREAM2 (STATUS DATA/BAND2) IMAGE (BAND1) IMAGE (BAND1) IMAGE (BAND1) IMAGE (BAND3) FRAME1 FRAME1 IMAGE (BAND1) IMAGE (BAND3) FRAME2 FRAME2 IMAGE (BAND2) IMAGE (BAND2) IMAGE (BAND1) IMAGE (BAND3) FRAME3 FRAME3 IMAGE (BAND1) IMAGE (BAND3) FRAME4 FRAME4 IMAGE (BAND3) IMAGE (BAND3) IMAGE (BAND1) IMAGE (BAND3) FRAME N FRAME N METADATA METADATA METADATA METADATA METADATA INDEX (FAST ACCESS) Astro Digital Video (ADV) File Structure http://www.astrodigitalvideo.com.au/CurrentADVFileFormat.pdf

  7. ADV Status Stream 1. GAIN 2. GAMMA 3. OFFSET (BRIGHTNESS) 4. SYSTEM TIME 5. ADVR SYSTEM MESSAGES 6. TIMESTAMP 7. EXPOSURE 8. TRACKED SATELLITES 9. GPS FIX STATUS

  8. ADVR and Software Considerations

  9. Adv2Fits Windows Mac OS X Linux Solaris

  10. Tangra 2

  11. Point Grey Cameras Flea3 03S1 = US $ 565 Flea3 03S3 = US $ 845 G-HopperEx = US $1995

  12. QA Testing

  13. Introducing SEXTA VEXA and EXTA by Gerhard Dangl

  14. QA - Timing Testing

  15. ADVS price list (to be confirmed) ADVS-HTCC --------- $289 Hirose Cable ------ $60 ADVR (Ubuntu) ----- $100 (Includes 2 free service tickets) Service tickets ---- $20 Thank You! – Questions? http://www.astrodigitalvideo.com.au

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