Quarterly 1 NASA Quarterly UVIS Q (August - October 2010)

Quarterly 2 UVIS: Accomplishments Science Highlights – Enceladus flybys on Revs 120 and 121; obtained data (in analysis) on surface composition and gas plume measurements against the disk of Saturn (Hendrix)

Quarterly 3 UVIS: Accomplishments Publications – Published this quarter1 – In Press (Went into press Aug-Oct and also includes still in press from earlier quarters)4 – Submitted (Submitted Aug-Oct and also includes submitted earlier and still in review) 11 – Published 2010 to date:34 – Published Entire mission117 Presentations at scientific conferences (Aug - Oct 2010) – 9 papers at Europlanet (ESPC), September 2010, Rome, Italy (Hedelt, Hendrix, Esposito, Esposito for Hansen, Gustin (4), Albers) – 10 papers at Division for Planetary Sciences (DPS), October 2010, Pasadena CA (Colwell (2), Gustin, Yung (4), Baille, Esposito, Meinke) Public Outreach and Press Activities (Aug - Oct 2010) – 0: public talks – 0: press releases – 1: press conferences (phone, TV interviews)

Quarterly 4 UVIS: Plans – Science Plans (Nov Jan 2011) Submit paper on C ring waves. (Colwell) Submit paper on analysis of ring edges. (Colwell) Analyze holes in rings from stellar occs. (Colwell) Analyze Rev 9 solar occultation data (Colwell) Investigate HDAC T66 and T67 data & publish results (Hedelt) – Publications (Nov Jan 2011) — In preparation (includes submitted, but not yet published) 12 1 papers in review in ApJ 1 paper in review in ApJ Letters 1 paper in press in Astron. J. 1 paper in review in Charged Particles and Photon Interactions with Matter 1 paper in press in the proceedings book of the IAU Symposium papers in review and 2 in press in Icarus 2 paper in review at JGR 2 papers in review in Planet. Space. Sci. – Upcoming presentations at scientific conferences (Nov Jan 2011) 3 papers at AGU, December 2010, San Francisco, (Hendrix, Esposito, Meinke) – Public Outreach and Press Activities (Nov Jan 2011) 0: public talk 0: press releases 0: press conferences (phone interviews)

Quarterly 5 Backup Material

Quarterly 6 UVIS: Publications Bradley, E. T., Colwell, J.E., Esposito, L.W., Cuzzi, J.N., Tollerud, H., Chambers, L., Far Ultraviolet Spectral Properties of Saturn’s Rings from Cassini UVIS. Icarus. 206, Charnoz, S., L. Dones, L.W. Esposito, P.R. Estrada, M.M. Hedman Origin and evolution of Saturn’s ring system, A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 17, Dordrecht, Netherlands: Springer-Verlag. [All Springer- Verlag chapters were published in October after the Q4 Quarterly Report was submitted] Colwell, J. E., P.D. Nicholson, M.S. Tiscareno, C.D. Murray, R.G. French, and E.A. Marouf The Structure of Saturn’s Rings. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 13, Dordrecht, Netherlands: Springer-Verlag. pp Cravens, T.E., R. V. Yelle, J.-E. Wahlund, D. E. Shemansky Composition and Structure of the Ionosphere and Thermosphere. A chapter in the book Titan from Cassini Huygens. R.H. Brown et al. Eds. 11, Dordrecht, Netherlands: Springer-Verlag. Cuzzi, J., Clark, R., Filacchione, G., French, R., Johnson, R., Marouf, E., and Spilker, L Ring Particle Composition and Size Distribution. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 15, Dordrecht, Netherlands: Springer-Verlag. Cuzzi, J. N., J. A. Burns, S. Charnoz, R. N. Clark, J. E. Colwell, L. Dones, L. W. Esposito, G. Filacchione, R. G. French, M. M. Hedman, S. Kempf, E. A. Marouf, C. D. Murray, P. D. Nicholson, C. C. Porco, J. Schmidt, M. R. Showalter, L. J. Spilker, J. N. Spitale, R. Srama, M. Sremcevic, M. S. Tiscareno, J. Weiss An Evolving View of Saturn’s Dynamic Rings. Science, 327, , doi: /science Dougherty, M.K., Esposito, L. W. and Krimigis, S.M., Eds Saturn from Cassini-Huygens. Dordrecht, Netherlands: Springer- Verlag. Dougherty, M.K., Esposito, L. W. and Krimigis, S.M., Eds Overview. In Saturn from Cassini-Huygens. M. Dougherty et al. Eds. pp.1-8. Dordrecht, Netherlands: Springer-Verlag. Dzhanoev, A.R., A. Loskutov, J. E. Howard, and M. A. F. Sanjuan Chaos stabilization in the three body problem. A chapter in Recent Progress in Controlling Chaos, eds. M.A.F. Sanjuan and C. Grebogi. World Scientific Review. Esposito, L.W., A.R. Hendrix, Eds Introduction to Special Issue. Saturn’s Rings and Icy Satellites from Cassini, Icarus. 206, 381 Esposito, L.W Composition, Structure, Dynamics and Evolution of Saturn’s rings. Annual Review of Earth & Planetary Sciences, 38, Continued…

Quarterly 7 UVIS: Publications …2010 publications continued: Flasar, F. M., K. H. Baines, M. K. Bird, T. Tokano and R. A. West Atmospheric Dynamics and Meteorology. A chapter in the book Titan from Cassini Huygens. R. Brown et al. Eds. 13, Dordrecht, Netherlands: Springer-Verlag. Gustin, J., I. Stewart, J-C. Gerard, L.W. Esposito Characteristics of Saturn’s FUV airglow from limb viewing spectra obtained with Cassini-UVIS. Icarus. 210 (2010), Hansen, C. J.,H. Waite, S. Bolton. Titan in the Cassini-Huygens Extended Mission A chapter in the book Titan from Cassini Huygens. R.H. Brown et al. Eds. 17, Dordrecht, Netherlands: Springer-Verlag. Hendrix, A. R. Hansen, C.J., Holsclaw, G. M The Ultraviolet Reflectance of Enceladus: Implications for Surface Composition. Icarus. 206, Howard. J. E. and J. D. Meiss Straight-Line Orbits in Hamiltonian Flows. Celestial Mechanics and Dynamical Astronomy. 105, Issue 4, Hubert, B., J. C. Gerard, J. Gustin, V. I. Shematovich, D. V. Bisikalo, A. I. Stewart and G.R. Gladstone Cassini-UVIS observations of the FUV OI and CO Venus dayglow. Icarus. 207, Jaumann, R., R. Clark, Fr. Nimmo, A. Hendrix, B. Buratti, T. Denk, J. Moore, P. Schenk, S.Ostro and R.Srama Icy Satellites: Geological Evolution and Surface Processes. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 20, Dordrecht, Netherlands: Springer-Verlag. Jaumann R., R. L. Kirk, R. D. Lorenz, R. M.C. Lopes, E. Stofan, E. P. Turtle, H. U. Keller, C. A. Wood, C. Sotin, L. A. Soderblom and M. G. Tomasko Geology and Surface Processes on Titan. A chapter in the book Titan from Cassini Huygens. R.H. Brown et al. Eds. 5, Dordrecht, Netherlands: Springer-Verlag. Kurth, W.S., E.J. Bunce, J.T. Clarke, F.J. Crary, D.C. Grodent, A.P. Ingersoll, U.A. Dyudina, L. Lamy, D.G.Mitchell, A.M. Persoon,W.R. Pryor, J. Saur, and T. Stallard Auroral Processes. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 12, Dordrecht, Netherlands: Springer-Verlag. Liu, X., P. V. Johnson, C. P. Malone, J. A. Young, I. Kanik, and D. E. Shemansky Kinetic energy distribution of H(1s) from the H 2 X 1  +g - a 3  +g excitation and lifetimes and transition probabilities of a 3  (v,J). Astrophys. J. Volume 716, Number 1, 701. Liu, X. P. V. Johnson, C. P. Malone, J. A. Young, D. E. Shemansky, and I. Kanik, 2009, Electron impact excitation and emission cross section of the B1S and D 1Pu states and rotational dependence of photodissociation cross sections of the B1S and D 1Pu continua, J. Phys. B, 42, Continued…

Quarterly 8 UVIS: Publications …2010 publications continued: Liu, X., D. E. Shemansky, P. V. Johnson, C. P. Malone, H. Melin, J. A. Young and I. Kanik The Saturn hot atomic hydrogen plume: Quantum mechanical investigation of H2 dissociation mechanisms. Advances in Geosciences, Vol. 19 (Planetary Science), Chap. 30, pp , edited by A. Bhardwaj. World Scientific. Mauk, B.H., J. Cuzzi, D. Hamilton, T. Hill, G. Hospodarsky, R. Johnson, C. Paranicas, E. Roussos, C. Russell, D. Shemansky, E. Sittler,R. Thorne Fundamental Plasma Processes in Saturn ﾕ s Magnetosphere. A chapter in the book Saturn From Cassini- Huygens. M. Dougherty et al. Eds. 11, Dordrecht, Netherlands: Springer-Verlag. McGrath, M., C. J. Hansen, A. R. Hendrix. Observations of Europa’s tenuous atmosphere Europa. eds. R. Pappalardo, W. McKinnon, and K. Khurana, University of Arizona Press Space Science Series. Melin, H., D. E. Shemansky, and X. Liu, 2009, The distribution of hydrogen and atomic oxygen in the magetosphere of Saturn, Planet. Space Sci., 57, 1743 (Published Dec. 2009) Nagy, A. F., A. J. Kliore, M. Mendillo, S. Miller, L. Moore, J. I. Moses, I. Muller-Wodarg, D. Shemansky Upper Atmosphere and Ionosphere of Saturn. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 8, Dordrecht, Netherlands: Springer-Verlag. Robbins, S.J., Stewart, G.R., Lewis, M.C., Colwell, J.E., and M. Sremčević Estimating the Masses of Saturn's A and B Rings from High-Optical Depth N-Body Simulations and Stellar Occultations. Icarus. 206, Shemansky, D. E., X. Liu, and H. Melin, 2009, The Saturn Hydrogen Plume, Planet. Space Sci., 57, 1659 doi: /j.pss (Published Dec. 2009) Sittler, E., C. Bertucci, A. Coates, T. Cravens, I. Dandouras, and D. Shemansky Energy deposition processes in Titan's upper atmosphere and Its Induced Magnetosphere. A chapter in the book Titan from Cassini Huygens. R.H. Brown et al. Eds. 16, Dordrecht, Netherlands: Springer-Verlag. Spencer, J.R., A. C. Barr, L.W. Esposito, P. Helfenstein, A.P. Ingersoll, R. Jaumann, C.P. McKay, F. Nimmo, C.C. Porco, J.H. Waite Enceladus: An Active Cryovolcanic Satellite. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 21, Dordrecht, Netherlands: Springer-Verlag.

Quarterly 9 UVIS: Publications Tomasko, M. G., and R. A. West. Aerosols in Titan's Atmosphere A chapter in the book Titan from Cassini Huygens. R. Brown et al. Eds. 12, Dordrecht, Netherlands: Springer-Verlag. West, R. A., K. H. Baines, E. Karkoschka and A. Sanchez-Lavega Clouds and Aerosols in Saturn's Atmopsphere. A chapter in the book Saturn From Cassini-Huygens. M. Dougherty et al. Eds. 7, Dordrecht, Netherlands: Springer-Verlag. Young, J A, C P Malone, P V Johnson, J M Ajello, X Liu1 and I Kanik Lyman–Birge–Hopfield emissions from electron-impact excited N2. J. Phys. B. 43,

Quarterly 10 UVIS: Publications (In Press) Colwell, J. E., L. W. Esposito, D. Pettis, M. Sremcevic, R. G. Jerousek, E. T. Bradley Saturn’s Rings from Cassini UVIS Stellar Occultations. Astron. J. (In press Sep. 15, 2010). Gerard, J.-C., B. Hubert, J. Gustin, V. I. Shematovich, D. Bisikalo, L. Esposito, A.I. Stewart, EUV spectroscopy of the Venus dayglow with UVIS on Cassini. Icarus (In press Sept. 2010) Hedelt, P., Ito, Y., Keller, H.U., Lammer, H., Rauer, H., Reulke, R., Wurz, P., Esposito, L Titan’s hydrogen corona. Icarus. (In press June 10, 2010) Hendrix, A.R. and C. J. Hansen The Surface Composition of Enceladus: Clues from the Ultraviolet. Proceedings book of the IAU Symposium 263 (In press Dec. 2009)

Quarterly 11 UVIS: Publications (Submitted) Ajello, J.M., R.S. Mangina, R.R. Meier UV Molecular Spectroscopy from Electron Impact for Applications to Planetary Atmospheres and Astrophysics. Eds., Y. Hatano, Y. Katsumura, and A. Mozumder, In Charged Particle and Photon Interactions with Matter, Recent Advances, Applications, and Interfaces, Taylor & Francis, Boca Raton. (Submitted August 2009) Ajello, J.M, R. S. Mangina, D. J. Strickland, D. Dziczek Laboratory studies of UV emissions from proton impact on N2: The Lyman-Birge-Hopfield Band System for aurora analysis. JGR. (submitted 9/10) Albers, N, M. Sremcevic, J.E. Colwell, and L.W. Esposito Saturn’s F Ring as seen by Cassini UVIS: Kinematics and Statistics. Icarus. (Submitted February, 2009) Elliott, J.P. and L.W. Esposito Regolith Depth Growth on an Icy Body Orbiting Saturn and Evolution of Bidirectional Reflectance due to Surface Composition Changes. Icarus. (Submitted Oct. 27, 2009, after submission of Q quarterly.) Esposito, L.W.E., Albers, N., Meinke, B.K., Sremcevic, M., Colwell, J.E Moon-triggered Clumping in Saturn’s Rings. Icarus. (Submitted October 2, 2009) Liang, M. C., A. S. Wong, D. Henze, M. Adamkovics, K. Boering and Y. L.Yung Synergistic study of hydrocarbon photochemistry in laboratory and planetary atmospheres. Planet. Space. Sci., (Submitted Sept. 2008) Liang, M-C. and Y. L. Yung Isotopic fractionation of trace molecules in the atmosphere of Titan. ApJ (Submitted in June 2009) Pryor W.R., A.M. Rymer, D.G. Mitchell, T.W. Hill, D.T. Young, J. Saur, G.H. Jones, S. Jacobsen, S.W.H. Cowley, B.H. Mauk, A.J. Coates, J. Gustin, D. Grodent, J.-C. Gerard, L. Lamy, J. D. Nichols, S.M. Krimigis, L.W. Esposito, M.K. Dougherty, A.. Jouchoux, A.I.F. Stewart, W.E. McClintock, G.M. Holsclaw, J.M. Ajello, J.E. Colwell, A.R. Hendrix, F.J. Crary, J.T. Clarke, X. Zhou Discovery of the Enceladus auroral footprint at Saturn. Nature. (Submitted July 13, 2010.) Shemansky, D. E., and X. Liu, 2009, Saturn Upper Atmospheric Structure from Cassini EUV/FUV Occulations, Planet. Space Sci., (Submitted November, 2008) Stevens, M.H., J. Gustin, J.M. Ajello, J.S. Evans, R.R. Meier, A. J. Kochenash, A.W. Stephan, A.I.F. Stewart, L.W. Esposito, W.E. McClintock, G. Holsclaw, E. T. Bradley, B.R. Lewis The Production of Titan’s Far Ultraviolet Nitrogen Airglow. JGR. (Submitted Oct 2010) Zhang X., Ajello, J.M., and Yung, Y.L., Atomic carbon in the upper atmosphere of Titan. Astrophysical Journal Letters. (Submitted Sept. 2009

Quarterly 12 UVIS: Science Presentations - Q (Aug - Oct, 2010) – Europlanet (ESPC), September 2010, Rome, Italy Hedelt, P., Ito, Y., Keller, U., Reulke, R., Wurz, P., Lammer, H., Rauer, H., Esposito, L.: Titan’s atomic hydrogen exosphere A. Hendrix, T. Cassidy, G. Holsclaw, R. Johnson, C. Paranicas. “Saturn’s Icy Moons: UV Reflectance Spectra and Links to Enceladus Plume Gases” C. J. Hansen, L. Esposito, D. Shemansky A.I.F. Stewart, J. Colwell, A. Hendrix, and R. West. “Composition and Structure of Enceladus’ Plume from Cassini UVIS Solar Occultation Observation“ LW Esposito, BK Meinke, M Sremcevic, N Albers “Boom and Bust Cycles in Saturn’s Rings“ L. Lamy, R. Prange, J. Gustin, W. Pryor, B. Cecconi, P. Zarka, S. Badman, T.Stallard, and D. Mitchell: "Saturn's radio, UV and IR aurorae observed simultaneously by Cassini” D. Grodent, A. Radioti, B. Bonfond, J.-C. Gerard, J. Gustin, and W. Pryor: "Saturn's secondary auroral ring” A. Radioti, J.C. Gerard, D. Grodent, B. Bonfond, J. Gustin, and W. Pryor: "Saturn's polar auroral emissions” J.-C Gerard, B. Hubert, J. Gustin, V.I. Shematovich, D. Bisikalo, G.R.Gladstone, and L. Esposito: "The EUV spectrum of the Venus dayglow: observations during the Cassini Venus flyby” Albers, N. and Sremcevic, M. "An analytical orbit model of Saturn's F ring strands.” – Division for Planetary Sciences (DPS), October 2010, Pasadena, CA Colwell, J. E., Jerousek, R. G., Esposito, L. W. Sharp Edges in Saturn’s Rings: Radial Structure and Longitudinal Variability Bradley, E. T., Colwell, J. E., Esposito, L. W. Scattering Properties of Saturn’s Rings from Cassini UVIS Spectra Baillié, K., Colwell, J. E., Esposito, L. W. Holes in Saturn’s Rings Michael H. Stevens, J. Gustin, J. M. Ajello, J. S. Evans, R. R.Meier, A. I.F. Stewart, L. W. Esposito, W. E. McClintock, A. W. Stephan: "TheProductionof Titan's Ultraviolet Nitrogen Airglow". J. Randazzo, P. Croteau, O. Kostko, M. Ahmed, M. Liang, Y. L. Yung, and K.A. Boering, 2010, Measurements of Isotope Effects in N2 PhotoionizationAnd Implications for Titan's Atmosphere, Bull. Am. Astron. Soc., 42, Y. Yung, X. Zhang, M. Liang, and D. E. Shemansky, 2010, Tholins in theUpper Atmosphere of Titan, Bull. Am. Astron. Soc., 42, M. C. Liang, X. Zhang, and Y. L. Yung, 2010, Under-produced Ethylene InThe Atmosphere Of Titan, Bull. Am. Astron. Soc., 42, D. E. Shemansky, Y. Yung, X. Zhang, X. Liu, and J. Kammer, 2010, VerticalStructure Of The Titan Atmosphere From Cassini UVIS Observations, Bull.Am. Astron. Soc., 42, Larry W. Esposito, Bonnie Meinke, Nicole Albers, Miodrag Sremcevic, Boom and Bust Cycles in Saturn’s Rings Bonnie Meinke, Larry W. Esposito, Nicole Albers, Sremcevic. Classification of F Ring features observed in Cassini UVIS occultations

Quarterly 13 UVIS: Outreach - Q (Aug - Oct, 2010) #: EPO: Talks to school children, teachers and public – None this quarter #: Press releases – None this quarter #: Press conferences & interviews – Esposito: TV interview in Rome, Catholic News Service, 20 Sept. 2010