J
J. A. Pirraglia
Researcher at Goddard Space Flight Center
Publications - 31
Citations - 2823
J. A. Pirraglia is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Atmosphere & Uranus. The author has an hindex of 21, co-authored 31 publications receiving 2731 citations.
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Journal ArticleDOI
Infrared observations of the saturnian system from voyager 1.
Rudolf A. Hanel,Barney J. Conrath,F. M. Flasar,V. G. Kunde,William C. Maguire,John C. Pearl,J. A. Pirraglia,Robert E. Samuelson,L. Herath,Matthew A. Allison,Dale P. Cruikshank,Daniel Gautier,Peter J. Gierasch,Linda J. Horn,R. Koppany,Cyril Ponnamperuma +15 more
TL;DR: During the passage of Voyager 1 through the Saturn system, the infrared instrument acquired spectral and radiometric data on Saturn, the rings, and Titan and other satellites, implying a depletion of helium in the atmosphere of Saturn relative to that of Jupiter.
Journal ArticleDOI
Investigation of the Martian environment by infrared spectroscopy on Mariner 9
Rudolf A. Hanel,Barney J. Conrath,W. A. Hovis,Virgil G. Kunde,Paul D. Lowman,William C. Maguire,John C. Pearl,J. A. Pirraglia,C. Prabhakara,B. Schlachman,G. V. Levin,P. Straat,T. E. Burke +12 more
TL;DR: In this article, spectral features due to the atmospheric dust storm indicate that large diurnal variations in atmospheric temperature existed up to at least 30 km; winds inferred from the temperature fields show a strong tidal component and significant ageostrophic behavior.
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Infrared observations of the jovian system from voyager 1.
Rudolf A. Hanel,Barney J. Conrath,M. Flasar,Virgil G. Kunde,Paul D. Lowman,William C. Maguire,John C. Pearl,J. A. Pirraglia,Robert E. Samuelson,D. Gautier,Peter J. Gierasch,S. Kumar,Cyril Ponnamperuma +12 more
TL;DR: The infrared spectroscopy and radiometry investigation has obtained spectra of Jupiter and its satellites between approximately 180 and 2500 cm–1 with a spectral resolution of 4.3cm–1, showing clear evidence of H2, CH4 C2H2, C2 H6, CH3D, NH3, PH3, H2O, and GeH4.
Journal ArticleDOI
Atmospheric and surface properties of Mars obtained by infrared spectroscopy on Mariner 9.
Barney J. Conrath,Robert J. Curran,Rudolf A. Hanel,Virgil G. Kunde,William C. Maguire,John C. Pearl,J. A. Pirraglia,Jean E. Welker,T. E. Burke +8 more
TL;DR: In this paper, a low-resolution pressure map is presented which covers that portion of the planet between latitudes -60 deg and +25 deg, and a more detailed study of the Coprates canyon indicates that at its lowest point the canyon floor must be at least 5 km below the rim.
Journal ArticleDOI
Infrared observations of the Saturnian system from Voyager 2
Rudolf A. Hanel,Barney J. Conrath,F. M. Flasar,Virgil G. Kunde,William C. Maguire,John C. Pearl,J. A. Pirraglia,Robert E. Samuelson,Dale P. Cruikshank,D. Gautier,Peter J. Gierasch,Linda J. Horn,Cyril Ponnamperuma +12 more
TL;DR: During the passage of Voyager 2 through the Saturn system, infrared spectral and radiometric data were obtained for Saturn, Titan, Enceladus, Tethys, Iapetus, and the rings, suggesting an approximate symmetry in the small-scale structure.