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 Earth and Planetary Atmospheres: People
Glenn Orton's Picture
Address:
Jet Propulsion Laboratory
M/S 169-237
4800 Oak Grove Drive
Pasadena, CA 91109
Phone:
818.354.2460
Fax:
818.393.4619
Email:
Curriculum Vitae:

Glenn Orton

Education
  • Sc.B. in Physics (with honors, cum Laude) - Brown University (1970)
  • Ph.D. in Planetary Science - California Institute of Technology (1975)

Research Interests
  • Infrared astronomy
  • Planetary atmospheres
  • Infrared spectroscopy
  • Extrasolar giant planets

Projects

Cassini-Huygens Icon Cassini-Huygens
The Cassini-Huygens spacecraft is currently exploring the ringed planet, its mysterious moons, the stunning rings and its complex magnetic environment.

Herschel Icon Herschel
The Herschel Space Observatory is a space-based telescope that studies the Universe in the light of the far-infrared and submillimeter portions of the spectrum.

Juno Icon Juno
Juno will fly to Jupiter and orbit its polar regions in order to understand the planet's gross size and structural properties, as well as measure Jupiter's atmospheric composition, temperature and deep wind profiles.


Professional Experience
  • Jet Propulsion Laboratory, Caltech (1977-present)
    • Senior Research Scientist (1995-present)
    • Co-Investigator, Cassini Composite Infrared Spectrometer (CIRS) Experiment
    • Interdisciplinary Scientist, Galileo Project
    • Co-Investigator, Galileo Orbiter Photometer-Polarimeter-Radiometer (PPR) Experiment
    • Co-Investigator, Galileo Probe Nephelometer Experiment
    • Co-Investigator, Galileo Probe Net Flux Radiometer Experiment
    • Chair (acting), Galileo Atmospheres Working Group
    • Associate Astronomer, Infrared Space Observatory Long-Wavelength Spectrometer (European Space Agency)
    • Associate Astronomer, Herschel Space Telescope (European Space Agency)
    • NASA Planetary Atmospheres Management Operations Working Group (1986-1990)
    • Chair, NASA Infrared Telescope Facility Shoemaker-Levy 9 Science Team (1994)
  • Jet Propulsion Laboratory, Caltech - Resident Research Associate (NASA-NRC) (1975-1977)

Selected Awards
  • NASA Group Achievement Award, Juno Proposal Team & Juno Science Team (2012)
  • NASA Medal for Exceptional Scientific Achievement (1997)

Selected Publications
  1. G. S. Orton, L. N. Fletcher, J. I. Moses, A. Mainzer, D. Hines, H. Hammel, J. Martin-Torres, M. Burgdorf, C. Merlet, M. R. Line. 2014a. Mid-Infrared spectroscopy of Uranus from the Spitzer Infrared Spectrometer: Determination of the mean temperature of the upper troposphere and stratosphere.  Icarus. In press. doi 10.1016/j.icarus.2014.07.010 (arXiv: 1407.2120).
  2. G. S. Orton, J. I. Moses, L. N. Fletcher, A. Mainzer, D. Hines, H. Hammel, J. Martin-Torres, M. Burgdorf, C. Merlet, M. R. Line. 2014b. Mid-Infrared spectroscopy of Uranus from the Spitzer Infrared Spectrometer: Determination of the mean composition of the upper troposphere and stratosphere.  Icarus. In press. doi 10.1016/j.icarus.2014.07.012 (arXiv: 1407.2118).
  3. L. N. Fletcher, G. S. Orton, J. H. Rogers, A. A. Simon-Miller, I. de Pater, M. H. Wong, O. Mousis, P. G. J. Irwin, M. Jaquesson, P. A. Yanamandra-Fisher. 2011. Jovian haze variability during the 2009-2010 fade of the Southern Equatorial Belt. Icarus. 213, 564-580.
  4. L. N. Fletcher, B. D. Hessman, P. G. J. Irwin, K.H. Baines, T. W. Momary, A. Sanchez-Lavega, F. M. Flasar, R. P. Rad, G. S. Orton, A. Simon-Miller, R. Hueso, G. L. Bjoraker, A. Mamoutkine, T. del Rio-Gaztelurrutia, J. M. Gomez, R. J. Brown, B. Buratti, R. N. Clark, P. D. Nicholson, C. Sotin. 2011. Thermal structure and dynamics of Saturn's northern springtime disturbance. Science 332, 1413-1417.
  5. L. N. Fletcher, K.H. Baines, T.W. Momary, A. P. Showman, P.G.J. Irwin, G.S. Orton, M. Roos-Serote, C. Merlet. 2011. Saturn's tropospheric composition and clouds from Cassini/VIMS 4.6-5.1 µm nightside spectroscopy. Icarus 214, 510-533.
  6. A. Sánchez-Lavega, G. S. Orton, R. Hueso, S. Pérez-Hoyos, L. N. Fletcher, E. García-Melendo, J. M. Gomez-Forrellad,I. de Pater, M. Wong,H. B. Hammel, Yanamandra-Fisher, A. Simon-Miller, N. Barrado-Izagirre, F. Marchis, O. Mousis, J. L. Ortiz, J. García-Rojas, M. Cecconi, J. T. Clarke, K. Noll, S. Pedraz, A. Wesley, P. Kalas, N. McConnell, W. Golisch, D. Griep, P. Sears, E. Volquardsen,V. Reddy, M. Shara, R. Binzel, W. Grundy, J. Emery, A. Rivkin, C. Thomas, D. Trilling, K. Bjorkman, A. J. Burgasser, H. Campins, T. M. Sato, Y. Kasaba, J. Ziffer, R. Mirzoyan, and the IOPW team. 2011. Long-term evolution of the aerosol debris cloud produced by the 2009 impact on Jupiter. Icarus. 214, 462-476.
  7. T. Greathouse,M. Richter, J. Lacy, J. Moses, G. Orton, T. Encrenaz, H. Hammel, D. Jaffe, 2011. A spatially resolved high spectral resolution study of Neptune's stratosphere. Icarus. 214, 606-622.
  8. G. S. Orton, L. N. Fletcher, J. Liu, T. Schneider, P. A. Yanamandra-Fisher, I. de Pater, M. Edwards, T. R. Geballe, H. B. Hammel, T. Fujiyoshi, T. Encrenaz, E. Pantin, O. Mousis, T. Fuse. 2012. Recovery of Neptune's polar hot spot. Planetary & Space Sci. 61, 161-167.
  9. L. Li, X. Jiang, A. P. Ingersoll, A. D. Del Genio C. C. Porco, R. A. West, A. R. Vasavada, S. P. Ewald, B. J. Conrath, P. J. Gierasch, F. M. Flasar, A. A. Simon-Miller, C. A. Nixon, R. K. Achterberg, G. S. Orton, L. N. Fletcher, K. H. Baines. 2012. High-altitude equatorial jet changes on Saturn. Nature Geosci. 4, 750-752.
  10. P. G. J. Irwin, N. A. Teanby, G. R. Davis, L. N. Fletcher, G. S. Orton, S. B. Calcutt, D. Tice, and J. Hurley. 2012. Further seasonal changes in Uranus' cloud structure observed by Gemini-North and UKIRT. Icarus. 218, 47-55.
  11. L. N. Fletcher, B. E. Hesman, R. K. Achterberg, P. G. J. Irwin, G. Bjoraker, N. Gorius, J. Hurley, J Sinclair, G. S. Orton, J. Legarreta, E. Garcia-Melendo, A. Sanchez-Lavega, A. A. Simon-Miller, F. M. Flasar. 2012. The origin and evolution of Saturn's stratospheric vortex. Icarus. 221, 560-586.
  12. P. G. J. Irwin, C. de Bergh, R. Courtin, B. Bezard, N. A. Teanby, G. R. Davis, L. N. Fletcher, G. S. Orton, S. B. Calcutt, D. Tice, J. Hurley. 2012 The application of new methane line absorption data to Gemini-N/NIFS and KTNO/FTS observations of Uranus' near-infrared spectrum. Icarus 220, 369-382.
  13. S. Perez-Hoyos, J. F. Sanz-Requena, A. Sanchez-Lavega, M.Wong, H. B. Hammel, G. S. Orton, I. de Pater, A. A. Simon-Miller, J. T. Clarke and K. Noll. 2012 Vertical cloud structure of the 2009 Jupiter impact based on NST/WFC3 observations. Icarus. 221, 1061-1078.
  14. G. S. Orton, L. N. Fletcher, C. M. Lisse, P. W. Chodas, A. Cheng, P. A. Yanamandra-Fisher, K. H. Baines, B. M. Fisher, A. Wesley, S. Perez-Hoyos, I. de Pater, H. B. Hammel, M. L. Edwards, O. Mousis, F. Marchis, W. Golisch, A. Sanchez-Lavega, A. A. Simon-Miller, R. Hueso, T. W. Momary, Z. Greene, N. Reshetnikov, E. Otto, G. Villar, S. Lai, M. Wong. 2011. The Atmospheric influence, size and possible asteroidal nature of the July 2009 Jupiter impactor. Icarus. 211, 587-602.
  15. L. N. Fletcher, G. S. Orton, C. M. Lisse, M. L. Edwards, I. de Pater, P. A. Yanamandra-Fisher, B. M. Fisher, H. B. Hammel. 2011. The aftermath of the July 2009 impact on Jupiter: Ammonia, temperatures and particulates from Gemini thermal-IR spectroscopy. Icarus. 211, 568-586.
  16. L. N. Fletcher, G. S. Orton, J. H. Rogers, A. A. Simon-Miller, I. de Pater, M. H. Wong, O. Mousis, P. G. J. Irwin, M. Jaquesson, P. A. Yanamandra-Fisher. 2011. Jovian haze variability during the 2009-2010fade of the Southern Equatorial Belt. Icarus. 213, 564-580.
  17. A. Sánchez-Lavega, G. S. Orton, R. Hueso, S. Pérez-Hoyos, L. N. Fletcher, E. García-Melendo, J. M. Gomez-Forrellad, I. de Pater, M. Wong, H. B. Hammel, Yanamandra-Fisher, A. Simon-Miller, N.Barrado-Izagirre, F. Marchis, O. Mousis, J. L. Ortiz, J. García-Rojas, M. Cecconi, J. T. Clarke, K. Noll, S. Pedraz, A. Wesley, P. Kalas, N. McConnell, W. Golisch, D. Griep, P. Sears, E. Volquardsen,V. Reddy, M. Shara, R. Binzel, W. Grundy, J. Emery, A. Rivkin, C. Thomas, D. Trilling, K. Bjorkman, A. J. Burgasser, H. Campins, T. M. Sato, Y. Kasaba, J. Ziffer, R. Mirzoyan, and the IOPW team. 2011. Long-term evolution of the aerosol debris cloud produced by the 2009 impact on Jupiter. Icarus. In press.
  18. T. Greathouse, M. Richter, J. Lacy, J. Moses, G. Orton, T. Encrenaz, H. Hammel, D. Jaffe, 2011. A spatially resolved high spectral resolution study of Neptune's stratosphere. Icarus. In press.
  19. L. N. Fletcher, B. D. Hessman, P. G. J. Irwin, K.H. Baines,T. W. Momary, A. Sanchez-Lavega, F. M. Flasar, R. P. Rad, G. S. Orton, A. Simon-Miller, R. Hueso, G. L. Bjoraker, A. Mamoutkine, T. del Rio-Gaztelurrutia, J. M. Gomez, R. J. Brown, B. Buratti, R. N. Clark, P. D.Nicholson, C. Sotin. 2011. Thermal structure and dynamics of Saturn's northern springtime disturbance. Science. In press. (published on-line in Science Express)
  20. L.N. Fletcher, K.H. Baines, T.W. Momary, A.P.Showman, P.G.J. Irwin, G.S. Orton, M. Roos-Serote, C. Merlet (2011), Saturn's tropospheric composition and clouds from Cassini/VIMS 4.6-5.1 µm nightside spectroscopy. Icarus. In press.
  21. G. S. Orton, L. N. Fletcher, J. Liu, T. Schneider, P. A. Yanamandra-Fisher, I. de Pater, M. Edwards, T. R. Geballe, H. B. Hammel, T. Fujiyoshi, T. Encrenaz, E. Pantin, O. Mousis, T. Fuse. 2011. Recovery of Neptune's polar hot spot. Planetary & Space Sci. In press.
  22. G. S. Orton, L. N. Fletcher, C. M. Lisse, P. W. Chodas, A. Cheng, P. A. Yanamandra-Fisher, K. H. Baines, B. M. Fisher, A. Wesley, S. Perez-Hoyos, I. de Pater, H. B. Hammel, M. L. Edwards, O. Mousis, F. Marchis, W. Golisch, A. Sanchez-Lavega, A. A. Simon-Miller, R. Hueso, T. W. Momary, Z. Greene, N. Reshetnikov, E. Otto, G. Villar, S. Lai, M. Wong. 2011. The Atmospheric Influence, Size and Asteroidal Nature of the July 2009 Jupiter Impactor. Icarus 211,587-602.
  23. R. Hueso, A. Wesley, C. Go, S. Perez-Hoyos, M. H. Wong, L. N. Fletcher, A. Sanchez-Lavega, M. B. E. Boslough, I de Pater, G. S. Orton, A. A. Simon-Miller, S. G. Djorgovski, M. L. Edwards, H. B. Hammel, J. T. Clarke, K. S. Noll, P. A. Yanamandra-Fisher. 2010. First Earth-based detection of asuperbolide on Jupiter. Astrophys. J.Lett.721, L129-L133.
  24. B. M. Swinyard, P. Hartogh, S. Sidher, T. Fulton, E. Lellouch, C. Jarchow, M. J. Griffin, R. Moreno, H. Sagawa, G. Portyankina, M. Blecka, M. Banazkeiwicz, D. Bockelee-Morvan, J. Crovisier, T. Encrenaz, M. Kueppers, L. Lara, D. Lis, A. Medyedev, M. Rengel, S. Szutowica, B. .Bandenbussche, F. Bensch, E. Bergin, F. Billebaud, N. Biver, G. Black, J. Blommaert, M. de Val-Borro, J. Cernicharo, T. Cavalie, R. Courtin, G. Davis, L. Cedin, P. Encrenaz, T. de Graauw, D. Jehin M. Kidger, S. Leeks, G. Orton, D. Naylor, R. Schider, D. Steam, N. Thomas, E. Verdugo, C. Waelkens, H. Walker. 2010. The Herschel-SPIRE submillimeter spectrum of Mars. Astron & Astrophys. 518, L151.
  25. L. N. Fletcher, G. S. Orton, I de Pater, and O. Mousis. 2010. Jupiter's stratospheric hydrocarbons and temperatures after the July 2009 impact from VLT infrared spectroscopy. Astron. & Astrophys. 524, A46.
  26. A. Sánchez-Lavega, G. S. Orton, R. Hueso, S. Pérez-Hoyos, L. N. Fletcher, E. García-Melendo, J. M. Gomez-Forrellad, I. de Pater, M. Wong, H. B. Hammel, Yanamandra-Fisher, A. Simon-Miller, N.Barrado-Izagirre, F. Marchis, O. Mousis, J. L. Ortiz, J. García-Rojas, M. Cecconi, J. T. Clarke, K. Noll, S. Pedraz, A. Wesley, P. Kalas, N. McConnell, W. Golisch, D. Griep, P. Sears, E. Volquardsen,V. Reddy, M. Shara, R. Binzel, W. Grundy, J. Emery, A. Rivkin, C. Thomas, D. Trilling, K. Bjorkman, A. J. Burgasser, H. Campins, T. M. Sato, Y. Kasaba, J. Ziffer, R. Mirzoyan, and the IOPW team. 2010 Long-term evolution of the aerosol debris cloud produced by the 2009 impact on Jupiter. Icarus. Submitted.
  27. L. N. Fletcher, G. S. Orton, A. A. Simon-Miller, I. de Pater, M. Wong, O. Mousis, P. G. J. Irwin. 2010 Jovian haze variability during the 2009-2010 fade of the Southern Equatorial Belt. Icarus. Submitted.
  28. H. B. Hammel, M. H. Wong, J. T. Clarke, I. de Pater, L. N. Fletcher, R. Hueso, K. Noll, G. S. Orton, S. Pérez-Hoyos, A. Sánchez-Lavega, A. A. Simon-Miller, P.A. Yanamandra-fisher. 2010. Jupiter after the 2009 impact: Hubble Space Telescope imaging of the impact-generated debris and its temporal evolution. Astrophys. J. Lett. 715, L150-L154.
  29. E. Lellouch, P. Hartogh, H. Feuchtgruber, B. Vandenbussche, T. de Graauw, R. Moreno, C. Jarchow, T. Cavalie, G. Orton, M. Banaszkiewicz, M.I. Blecka, D. Bockelee-Morvan, J. Crovisier, T. Encrenaz, T. Fulton, M. Kuppers, L.M. Lara, D.C. Lis, A.S. Medvedev, M. Rengel, H. Sagawa, B. Swinyard, S. Szutowicz, F. Bensch, E. Bergin, F. Billebaud, N. Biver, G.A. Blake, J.A.D.L. Blommaert, J. Cernicharo, R. Courtin, G.R. Davis, L. Decin, P. Encrenaz, A. Gonzalez, E. Jehin, M. Kidger, D. Naylor, G. Portyankina, R. Schieder, S. Sidher, N. Thomas, M. de Val-Borro, E. Verdugo, C. Waelken, H. Walker, H. Aarts, C. Comito, J.H. Kawamura, A. Maestrini, T. Peacocke, R. Teipen, T. Tils, K. Wildeman. 2010. First results of Herschel/PACS observations of Neptune. Astron & Astrophys. 518, L152.
  30. M. J. Burgdorf, D. P. Cruikshank, C. M. Dalle Ore, T. Sekiguchi, R. Nakamure, G. Orton, E. Quirico, B. Schmitt. 2010. Detection of HCN ice on Triton. Astrophys. J. Lett. In press.
  31. A. Burrows and G. Orton. 2010. Theory of giant planet atmospheres and spectra. In Extrasolar Planets (S. Seager, Ed.) 696, 1348-1354.
  32. I. de Pater, L. Fletcher, S. Perez-Hoyos, H. Hammel, G. Orton, M. H. Wong, S. Luszcz-Cook, A. Sánchez-Lavega, M. Boslough. 2010 A multi-wavelength study of the 2009 impact on Jupiter: Comparison of high-resolution images from Gemini, Keck and HST. Icarus, 210, 722-741.
  33. Li, B. J. Conrath, P. J. Gierasch, R. K. Achterberg, C. A. Nixon,A. A. Simon-Miller, F. M. Flasar, D. Banfield, K. H. Baines, R. A. West, A. R. Vasavada, A. A. Mamoutkine, M. E. Segura, G. L. Bjoraker, G. S. Orton, L. N. Fletcher, P. G. J. Irwin, P. L. Read, T. Fouchet, S. Guerlet. 2010. Saturn's emitted power. J. Geophys. Res.115, E11002.
  34. L. N. Fletcher, G. S. Orton, N. A. Teanby, P. G. J. Irwin, G. L. Bjoraker. 2009. Methane and its isotopologues on Saturn from Cassini/CIRS observations. Icarus. 199, 351-367.
  35. L. N. Fletcher, G. S. Orton, P. Yanamandra-Fisher, B. M. Fisher, P. D. Parrish, P. G. J. Irwin. 2009. Retrieval of atmospheric variables on the gas giants from ground-based mid-infrared imaging. Icarus. 200, 154-175.
  36. L. N. Fletcher, G. S. Orton, N. A. Teanby, P. G. J. Irwin. 2009. Phosphine on Jupiter and Saturn from Cassini/CIRS. Icarus. 202, 543-564.
  37. O. Mousis, U. Marboeuf, J. I. Lunine, Y. Alibert, L. N. Fletcher, G. S. Orton, P. Pauzat, Y. Ellinger. 2009. Determination of the minimum masses of heavy elements in the envelopes of Jupiter and Saturn. Astrophys. J. 696, 1348-1354..
  38. G. S. Orton. 2009. Ground-based support for giant planet missions. Earth, Moon & Planets. 105, 143-152.
  39. G. S. Orton, K. H. Baines, D. Cruikshank, J. N. Cuzzi, S. Krimigis, S. Miller and E. Lellouch. 2009. Review of knowledge prior to the Cassini-Huygens mission. In Saturn After Cassini-Huygens (R. Brown, M. Dougherty and S. Krimigis, Eds.) Springer, Dordrecht.
  40. A. J. Friedson, R. B. West, E. H. Wilson, F. Oyafuso, and G. S. Orton. 2009 A global climate model of Titan's atmosphere and surface. Planet. & Space Sci. 57, 1931-1949.
  41. A. F. Cheng, A. A. Simon-Miller, H. A. Weaver, K. J. Baines, G. S. Orton, P. A. Yanamandra-Fisher, O. Mousis, E. Pantin, L. Vanzi, L. H. fletcher, J. R. Spencer, and S. A. Stern. 2008. Structure and dynamics of a new giant storm on Jupiter. Astron. J. 135, 2446-2452.

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