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In this chapter we describe the remote sensing measurement of nitrogen-bearing species in Titan's atmosphere by the Composite Infrared Spectrometer (CIRS) on the Cassini spacecraft. This instrument, which detects the thermal infrared…

Earth and Planetary Astrophysics · Physics 2013-03-14 Conor A. Nixon , Nicholas A. Teanby , Carrie M. Anderson , Sandrine Vinatier

We have analyzed the complete Visual and Infrared Mapping Spectrometer (VIMS) data archive of Titan. Our objective is to build global surface cartographic products, by combining all the data gathered during the 127 targeted flybys of Titan…

The Cassini/Composite InfraRed Spectrometer (CIRS) instrument has been observing the middle atmosphere of Titan over almost half a Saturnian year. We used the CIRS dataset processed through the up-to-date calibration pipeline to…

The Cassini Composite Infrared Spectrometer (CIRS) observed thermal emission in the far- and mid-infrared (from 10 cm$^{-1}$ to 1500 cm$^{-1}$), enabling spatiotemporal studies of ethane on Titan across the span of the Cassini mission from…

We describe the prediction, design, execution and calibration of stellar and solar occultation observations of Saturn's rings by the Visual and Infrared Mapping Spectrometer (VIMS) instrument on the Cassini spacecraft. Particular attention…

Earth and Planetary Astrophysics · Physics 2020-06-24 P. D. Nicholson , T. Ansty , M. M. Hedman , D. Creel , J. Ahlers , R. A. Harbison , R. H. Brown , R. N. Clark , K. H. Baines , B. J. Buratti , C. Sotin , S. V. Badman

In this work we present, for the first time, infrared spectra of Titan from the Spitzer Space Telescope ($2004-2009$). The data are from both the short wavelength-low resolution (SL, $5.13-14.29\mathrm{\mu m}, R\sim60-127$) and short…

We have analyzed the complete archive of the Visual and Infrared Mapping Spectrometer (VIMS) data in order to monitor and analyze the evolution of the clouds and haze coverage at both poles of Titan during the entire Cassini mission. Our…

Titan is one of the primary scientific objectives of the NASA ESA ASI Cassini Huygens mission. Scattering by haze particles in Titan's atmosphere and numerous methane absorptions dramatically veil Titan's surface in the visible range,…

Earth and Planetary Astrophysics · Physics 2009-07-17 S. Rodriguez , S. Le Mouélic , C. Sotin , H. Clénet , R. N. Clark , B. Buratti , R. H. Brown , T. B. Mccord , P. D. Nicholson , K. H. Baines

We present novel observations utilising the Cassini spacecraft to conduct an observing campaign for stellar astronomy from a vantage point in the outer solar system. By exploiting occultation events in which Mira passed behind the Saturnian…

Instrumentation and Methods for Astrophysics · Physics 2013-06-24 Paul N. Stewart , Peter G. Tuthill , Matthew M. Hedman , Philip D. Nicholson , James P. Lloyd

Titan, with its thick and hazy atmosphere, is a key world in our solar system for understanding light scattering processes. NASA's Cassini mission monitored Titan between 2004 and 2017, where the derived dataset includes a large number of…

Earth and Planetary Astrophysics · Physics 2025-09-11 Chase A. Cooper , Tyler D. Robinson , Jason W. Barnes , L. C. Mayorga , Lily Robinthal

The Infrared Spectrograph (IRS) on board the Spitzer Space Telescope observed about 15,000 objects during the cryogenic mission lifetime. Observations provided low-resolution (R~60-127) spectra over ~5-38um and high-resolution (R~600)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-26 V. Lebouteiller , D. J. Barry , C. Goes , G. C. Sloan , H. W. W. Spoon , D. W. Weedman , J. Bernard-Salas , J. R. Houck

The Cassini mission offered us the opportunity to monitor the seasonal evolution of Titan's atmosphere from 2004 to 2017, i.e. half a Titan year. The lower part of the stratosphere (pressures greater than 10 mbar) is a region of particular…

Earth and Planetary Astrophysics · Physics 2020-06-24 M. Sylvestre , N. A. Teanby , J. Vatant d'Ollone , S. Vinatier , B. Bézard , S. Lebonnois , P. G. J. Irwin

The Cassini mission performed 127 targeted flybys of Titan during its 13-year mission to Saturn, culminating in the Grand Finale between April-September 2017. Here we demonstrate the use of the Atacama Large Millimeter/submillimeter Array…

Earth and Planetary Astrophysics · Physics 2019-07-31 M. A. Cordiner , N. A. Teanby , C. A. Nixon , V. Vuitton , A. E. Thelen , S. B. Charnley

The lightning activity in Saturn's atmosphere has been monitored by Cassini for more than six years. The continuous observations of the radio signatures called SEDs (Saturn Electrostatic Discharges) combine favorably with imaging…

Earth and Planetary Astrophysics · Physics 2011-11-22 G. Fischer , U. A. Dyudina , W. S. Kurth , D. A. Gurnett , P. Zarka , T. Barry , M. Delcroix , C. Go , D. Peach , R. Vandebergh , A. Wesley

Saturn's largest satellite, Titan, transited the Crab Nebula on 5 January 2003. We observed this astronomical event with the {\it Chandra} X-ray Observatory. An ``occultation shadow'' has clearly been detected and is found to be larger than…

Astrophysics · Physics 2009-11-10 K. Mori , H. Tsunemi , H. Katayama , D. N. Burrows , G. P. Garmire , A. E. Metzger

The Cassini spacecraft's last orbits directly sampled Saturn's thermosphere and revealed a much more chemically complex environment than previously believed. Observations from the Ion and Neutral Mass Spectrometer (INMS) aboard Cassini…

Earth and Planetary Astrophysics · Physics 2020-09-02 J. Serigano , S. M. Hörst , C. He , T. Gautier , R. V. Yelle , T. T. Koskinen , M. G Trainer

In this paper we select large spectral averages of data from the Cassini Composite Infrared Spectrometer (CIRS) obtained in limb-viewing mode at low latitudes (30S--30N), greatly increasing the path length and hence signal-to-noise ratio…

Earth and Planetary Astrophysics · Physics 2009-09-10 C. A. Nixon , D. E. Jennings , J. -M. Flaud , B. Bezard , N. A. Teanby , P. G. J. Irwin , T. M. Ansty , A. Coustenis , S. Vinatier , F. M. Flasar

During the Cassini spacecraft's flyby of Jupiter (October, 2000-March, 2001), the Ultraviolet Imaging Spectrograph (UVIS) produced an extensive dataset consisting of 3,349 spectrally dispersed images of the Io plasma torus. Here we present…

Solar and Stellar Astrophysics · Physics 2013-01-17 Andrew J. Steffl , A. Ian F. Stewart , Fran Bagenal

Over the last eight years, the Visual and Infrared Mapping Spectrometer (VIMS) aboard the Cassini orbiter has returned hyperspectral images in the 0.35-5.1 micron range of the icy satellites and rings of Saturn. These very different objects…

We present the first spectral features obtained from Cassini's Composite Infrared Spectrometer (CIRS) for any icy moon. The spectral region covered by CIRS focal planes (FP) 3 and 4 is rich in emissivity features, but previous studies at…

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