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Imai M, Greathouse TK, Kurth WS, Gladstone GR, Louis CK, Zarka P, Bolton SJ, Connerney JEP. Probing Jovian Broadband Kilometric Radio Sources Tied to the Ultraviolet Main Auroral Oval With Juno. GEOPHYSICAL RESEARCH LETTERS 2019; 46:571-579. [PMID: 30853732 PMCID: PMC6392111 DOI: 10.1029/2018gl081227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/28/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Observations of Jovian broadband kilometric (bKOM) radiation and ultraviolet (UV) auroras were acquired with the Waves and Juno-UVS instruments for ∼2 hr over the northern and southern polar regions during Juno's perijoves 4, 5, and 6 passes (PJ4, PJ5, and PJ6). During all six time periods, Juno traversed auroral magnetic field lines connecting to the UV main auroral ovals, matching the estimates of bKOM radio source footprints. The localized bKOM radio sources for the PJ4 north pass map to magnetic field lines having distances of 10 to 12 Jovian radii (R J) at the magnetic equator, whereas the extended bKOM radio sources for the other events map to field lines extending to 20-61 R J. We found the peak bKOM intensities during Juno's potential radio source crossings show positive, negative, and no correlations with the UV main oval brightness and color ratio. Only the positive correlations suggest wave-particle energy transport.
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Affiliation(s)
- Masafumi Imai
- Department of Physics and AstronomyUniversity of IowaIowa CityIAUSA
| | - Thomas K. Greathouse
- Space Science and Engineering DivisionSouthwest Research InstituteSan AntonioTXUSA
| | - William S. Kurth
- Department of Physics and AstronomyUniversity of IowaIowa CityIAUSA
| | - G. Randall Gladstone
- Space Science and Engineering DivisionSouthwest Research InstituteSan AntonioTXUSA
| | - Corentin K. Louis
- LESIA, Observatoire de Paris, CNRS, PSL, UPMC/SU, UPD, Place J. JanssenMeudonFrance
- Station de Radioastronomie de Nançay, Obs. Paris, CNRS, PSL, Univ. OrléansNançayFrance
| | - Philippe Zarka
- LESIA, Observatoire de Paris, CNRS, PSL, UPMC/SU, UPD, Place J. JanssenMeudonFrance
- Station de Radioastronomie de Nançay, Obs. Paris, CNRS, PSL, Univ. OrléansNançayFrance
| | - Scott J. Bolton
- Space Science and Engineering DivisionSouthwest Research InstituteSan AntonioTXUSA
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Clarke JT, Nichols J, Gérard JC, Grodent D, Hansen KC, Kurth W, Gladstone GR, Duval J, Wannawichian S, Bunce E, Cowley SWH, Crary F, Dougherty M, Lamy L, Mitchell D, Pryor W, Retherford K, Stallard T, Zieger B, Zarka P, Cecconi B. Response of Jupiter's and Saturn's auroral activity to the solar wind. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013694] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. T. Clarke
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - J. Nichols
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | | | - D. Grodent
- LPAP; Université de Liège; Liege Belgium
| | - K. C. Hansen
- AOSS Department; University of Michigan; Ann Arbor Michigan USA
| | - W. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | | | - J. Duval
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - S. Wannawichian
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - E. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - F. Crary
- Southwest Research Institute; San Antonio Texas USA
| | - M. Dougherty
- Blackett Laboratory; Imperial College; London UK
| | - L. Lamy
- LESIA, Observatoire de Paris; UPMC, CNRS, Université Paris Diderot; Meudon France
| | - D. Mitchell
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - W. Pryor
- Department of Science; Central Arizona College; Coolidge Arizona USA
| | | | - T. Stallard
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - B. Zieger
- AOSS Department; University of Michigan; Ann Arbor Michigan USA
| | - P. Zarka
- LESIA, Observatoire de Paris; UPMC, CNRS, Université Paris Diderot; Meudon France
| | - B. Cecconi
- LESIA, Observatoire de Paris; UPMC, CNRS, Université Paris Diderot; Meudon France
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Grodent D, Bonfond B, Gérard JC, Radioti A, Gustin J, Clarke JT, Nichols J, Connerney JEP. Auroral evidence of a localized magnetic anomaly in Jupiter's northern hemisphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013185] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Denis Grodent
- Laboratory for Planetary and Atmospheric Physics; Université de Liège; Liège Belgium
| | - Bertrand Bonfond
- Laboratory for Planetary and Atmospheric Physics; Université de Liège; Liège Belgium
| | - Jean-Claude Gérard
- Laboratory for Planetary and Atmospheric Physics; Université de Liège; Liège Belgium
| | - Aikaterini Radioti
- Laboratory for Planetary and Atmospheric Physics; Université de Liège; Liège Belgium
| | - Jacques Gustin
- Laboratory for Planetary and Atmospheric Physics; Université de Liège; Liège Belgium
| | - John T. Clarke
- Center for Space Physics; Boston University; Boston Massachusetts USA
| | - Jonathan Nichols
- Center for Space Physics; Boston University; Boston Massachusetts USA
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Radioti A, Gérard JC, Grodent D, Bonfond B, Krupp N, Woch J. Discontinuity in Jupiter's main auroral oval. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012610] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- A. Radioti
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Belgium
| | - J.-C. Gérard
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Belgium
| | - D. Grodent
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Belgium
| | - B. Bonfond
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Belgium
| | - N. Krupp
- Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany
| | - J. Woch
- Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany
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Gustin J, Cowley SWH, Gérard JC, Gladstone GR, Grodent D, Clarke JT. Characteristics of Jovian morning bright FUV aurora from Hubble Space Telescope/Space Telescope Imaging Spectrograph imaging and spectral observations. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006ja011730] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Grodent D. A possible auroral signature of a magnetotail reconnection process on Jupiter. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003ja010341] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gustin J. Energy-flux relationship in the FUV Jovian aurora deduced from HST-STIS spectral observations. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003ja010365] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gérard JC. Spectral observations of transient features in the FUV Jovian polar aurora. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003ja009901] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Clarke JT, Ajello J, Ballester G, Ben Jaffel L, Connerney J, Gérard JC, Gladstone GR, Grodent D, Pryor W, Trauger J, Waite JH. Ultraviolet emissions from the magnetic footprints of Io, Ganymede and Europa on Jupiter. Nature 2002; 415:997-1000. [PMID: 11875560 DOI: 10.1038/415997a] [Citation(s) in RCA: 177] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Io leaves a magnetic footprint on Jupiter's upper atmosphere that appears as a spot of ultraviolet emission that remains fixed underneath Io as Jupiter rotates. The specific physical mechanisms responsible for generating those emissions are not well understood, but in general the spot seems to arise because of an electromagnetic interaction between Jupiter's magnetic field and the plasma surrounding Io, driving currents of around 1 million amperes down through Jupiter's ionosphere. The other galilean satellites may also leave footprints, and the presence or absence of such footprints should illuminate the underlying physical mechanism by revealing the strengths of the currents linking the satellites to Jupiter. Here we report persistent, faint, far-ultraviolet emission from the jovian footprints of Ganymede and Europa. We also show that Io's magnetic footprint extends well beyond the immediate vicinity of Io's flux-tube interaction with Jupiter, and much farther than predicted theoretically; the emission persists for several hours downstream. We infer from these data that Ganymede and Europa have persistent interactions with Jupiter's magnetic field despite their thin atmospheres.
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Affiliation(s)
- J T Clarke
- Boston University, 725 Commonwealth Avenue, Boston, Massachusetts 02215, USA.
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Mauk BH, Clarke JT, Grodent D, Waite JH, Paranicas CP, Williams DJ. Transient aurora on Jupiter from injections of magnetospheric electrons. Nature 2002; 415:1003-5. [PMID: 11875562 DOI: 10.1038/4151003a] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Energetic electrons and ions that are trapped in Earth's magnetosphere can suddenly be accelerated towards the planet. Some dynamic features of Earth's aurora (the northern and southern lights) are created by the fraction of these injected particles that travels along magnetic field lines and hits the upper atmosphere. Jupiter's aurora appears similar to Earth's in some respects; both appear as large ovals circling the poles and both show transient events. But the magnetospheres of Jupiter and Earth are so different---particularly in the way they are powered---that it is not known whether the magnetospheric drivers of Earth's aurora also cause them on Jupiter. Here we show a direct relationship between Earth-like injections of electrons in Jupiter's magnetosphere and a transient auroral feature in Jupiter's polar region. This relationship is remarkably similar to what happens at Earth, and therefore suggests that despite the large differences between planetary magnetospheres, some processes that generate aurorae are the same throughout the Solar System.
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Affiliation(s)
- B H Mauk
- The Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, Maryland 20723, USA.
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Comparison of auroral processes: Earth and Jupiter. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/130gm08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Perry JJ, Kim YH, Fox JL, Porter HS. Chemistry of the Jovian auroral ionosphere. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999je900022] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rego D, Achilleos N, Stallard T, Miller S, Prangé R, Dougherty M, Joseph RD. Supersonic winds in Jupiter's aurorae. Nature 1999. [DOI: 10.1038/20121] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Clarke JT, Skinner WR, Vincent MB, Irgang T, Suratkal V, Grassl H, Trauger JT. Laboratory studies of alkali metal filter deposition, ultraviolet transmission, and visible blocking. APPLIED OPTICS 1999; 38:1803-1813. [PMID: 18305811 DOI: 10.1364/ao.38.001803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Far-ultraviolet alkali metal or Wood's filters have been produced and tested supporting the production of a flight filter for the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Sodium layers 0.5-1-microm thick transmit up to 40% in the ultraviolet while efficiently blocking visible wavelengths. The prevention of visible pinholes is assisted by a clean, sleek-free surface and a cooled substrate during deposition. The coatings are stabilized efficiently by a bismuth overcoating whose transmission spectrum is presented. We also report for the first time, to our knowledge, the first demonstrated long-wavelength cutoff from a lithium filter, with a shorter cutoff wavelength than sodium and potentially higher stability for astronomical imaging.
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Affiliation(s)
- J T Clarke
- Space Physics Research Laboratory, University of Michigan, 2455 Hayward, Ann Arbor, Michigan 48109-2143, USA.
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Prangé R, Rego D, Pallier L, Connerney JEP, Zarka P, Queinnec J. Detailed study of FUV Jovian auroral features with the post-COSTAR HST faint object camera. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je01128] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Clarke JT, Ballester G, Trauger J, Ajello J, Pryor W, Tobiska K, Connerney JEP, Gladstone GR, Waite JH, Ben Jaffel L, Gérard JC. Hubble Space Telescope imaging of Jupiter's UV aurora during the Galileo orbiter mission. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je01130] [Citation(s) in RCA: 155] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ajello J, Shemansky D, Pryor W, Tobiska K, Hord C, Stephens S, Stewart I, Clarke J, Simmons K, McClintock W, Barth C, Gebben J, Miller D, Sandel B. Galileo orbiter ultraviolet observations of Jupiter aurora. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je00832] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Achilleos N, Miller S, Tennyson J, Aylward AD, Mueller-Wodarg I, Rees D. JIM: A time-dependent, three-dimensional model of Jupiter's thermosphere and ionosphere. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je00947] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Trauger JT, Clarke JT, Ballester GE, Evans RW, Burrows CJ, Crisp D, Gallagher JS, Griffiths RE, Hester JJ, Hoessel JG, Holtzman JA, Krist JE, Mould JR, Sahai R, Scowen PA, Stapelfeldt KR, Watson AM. Saturn's hydrogen aurora: Wide field and planetary camera 2 imaging from the Hubble Space Telescope. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98je01324] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Connerney JEP, Acuña MH, Ness NF, Satoh T. New models of Jupiter's magnetic field constrained by the Io flux tube footprint. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja03726] [Citation(s) in RCA: 339] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Prangé R, Maurice S, Harris WM, Rego D, Livengood T. Comparison of IUE and HST diagnostics of the Jovian Aurorae. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96je03304] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Clarke JT, Ballester GE, Trauger J, Evans R, Connerney JEP, Stapelfeldt K, Crisp D, Feldman PD, Burrows CJ, Casertano S, Gallagher JS, Griffiths RE, Hester JJ, Hoessel JG, Holtzman JA, Krist JE, Meadows V, Mould JR, Scowen PA, Watson AM, Westphal JA. Far-Ultraviolet Imaging of Jupiter's Aurora and the Io “Footprint”. Science 1996. [DOI: 10.1126/science.274.5286.404] [Citation(s) in RCA: 163] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- John T. Clarke
- J. T. Clarke and G. E. Ballester, Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gilda E. Ballester
- J. T. Clarke and G. E. Ballester, Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
| | - John Trauger
- J. Trauger, R. Evans, K. Stapelfeldt, D. Crisp, V. Meadows, Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - Robin Evans
- J. Trauger, R. Evans, K. Stapelfeldt, D. Crisp, V. Meadows, Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - J E. P. Connerney
- J. E. P. Connerney, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - Karl Stapelfeldt
- J. Trauger, R. Evans, K. Stapelfeldt, D. Crisp, V. Meadows, Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - David Crisp
- J. Trauger, R. Evans, K. Stapelfeldt, D. Crisp, V. Meadows, Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - Paul D. Feldman
- P. D. Feldman and R. E. Griffiths, Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Christopher J. Burrows
- C. J. Burrows, S. Casertano, J. E. Krist, Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - Stefano Casertano
- C. J. Burrows, S. Casertano, J. E. Krist, Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - John S. Gallagher
- J. S. Gallagher III and J. G. Hoessel, Department of Astronomy, University of Wisconsin, Madison, WI 53706, USA
| | - Richard E. Griffiths
- P. D. Feldman and R. E. Griffiths, Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
| | - J. Jeff Hester
- J. J. Hester and P. A. Scowen, Department of Astronomy, Arizona State University, Tempe, AZ 85287, USA
| | - John G. Hoessel
- J. S. Gallagher III and J. G. Hoessel, Department of Astronomy, University of Wisconsin, Madison, WI 53706, USA
| | - Jon A. Holtzman
- J. A. Holtzman and A. M. Watson, Department of Astronomy, New Mexico State University, Las Cruces, NM 88003, USA
| | - John E. Krist
- C. J. Burrows, S. Casertano, J. E. Krist, Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - Vikki Meadows
- J. Trauger, R. Evans, K. Stapelfeldt, D. Crisp, V. Meadows, Jet Propulsion Laboratory, Pasadena, CA 91109, USA
| | - Jeremy R. Mould
- J. R. Mould, Mount Stromlo and Siding Springs Observatories, Australian National University, Weston Creek, ACT 2611, Australia
| | - Paul A. Scowen
- J. J. Hester and P. A. Scowen, Department of Astronomy, Arizona State University, Tempe, AZ 85287, USA
| | - Alan M. Watson
- J. A. Holtzman and A. M. Watson, Department of Astronomy, New Mexico State University, Las Cruces, NM 88003, USA
| | - James A. Westphal
- J. A. Westphal, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
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