1. David H. Atkinson Dept of Electrical & Computer Engineering University of Idaho 7 April 2005 Exploration of New Worlds: The Cassini / Huygens Mission to Saturn and Titan

2. Cassini/Huygens

3. HST

4. Voyager 1

8. Cassini/Huygens Ready for launch

9. KSC, Cape Canaveral: 15 Oct 1997

11. 11 June 2004

12. Cassini SOI: 1 July at 02:36 UT

13. Titan / VIMS

15. Christmas Day 2004

18. 14 January 2005 7 years, 3 months and 4 billion km from launch

19. Huygens Descent on Titan From Atmospheric Entry To Touchdown on Surface 147 minutes

22. lifting Titan’s veil Yet do thy cheeks look red as Titan’s face W. Shakespeare

23. InvestigationAcronymPrincipal Investigator Huygens Atmosphere Structure Instrument HASIM. Fulchignoni, Obs. Paris-Meudon (F) Descent Imager/Spectral Radiometer DISRM. Tomasko, U. Arizona, Tucson, AZ (USA) Gas Chromatograph / Mass Spectrometer GCMS H. Niemann, NASA/GSFC, Greenbelt, MD (USA) Aerosol Collector and Pyrolyzer ACP G. Israel, SA-CNES, Verrieres-de-Buisson (F) Surface Science PackageSSPJ. Zarnecki, Open U., Milton Keynes (UK) Doppler Wind ExperimentDWEM. Bird, U. Bonn (D) Huygens Investigations

24. DISR: first images dry lakebed drainage canals; fluvial activity DISR: first images Methane Ground Fog Shoreline

25. 16 km

26. DISR: side-looking imager h: 8 km res: 20 m

27. DISR: 360 Panorama ground fog h: 8 km; resolution: 20 m Wind drift velocity: 1-2 m/s landing site

28. SSP: Impact on Surface ‘wet sand or clay’ (crème brûlée)

29. DISR: on the surface 85 cm 5 cm ‘orange tint from reflectance spectra’ ‘dirty water ice, not hydrocarbon ice’

30. If it was easy, then it wouldn’t be worth doing or someone would have done it already. D. Atkinson ( i.e., “Nothing is perfect….”)

31. Huygens Doppler Wind Experiment Goal – To measure the east-west winds in the Atmosphere of Titan from 140 km to the surface

34. No power!

35. Earth Radio Telescope Antennas as seen from Titan: 14 Jan 2005

36. Parkes Radio Telescope, Australia (64 meter) Green Bank Radio Telescope, WV (100 meter)

37. Adieu, Huygens

42. Iapetus

44. Mimas

45. Enceladus

50. Upcoming Encounters

51. Titan April 16: 637 miles August 22: 2,336 miles September 7: 637 miles

52. Enceladus July 14 622 miles

53. Mimas August 2 30,355 miles

54. Tethys September 24 18,504 miles

55. Hyperion September 26 628 miles