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  • 1
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    Cassini: Mission to Saturn and Titan (1992)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The Cassini Mission to Saturn and Titan represents an important step into the exploration of the outerplanets. It will expand on the flyby encounters of Pioneer and Voyager and parallel the detailed exploration of the Jupiter system to be accomplished by the Galileo Mission. By continuing the study of the two giant planets and enabling detailed comparisons of their structure and behavior, Cassini will provide a tremendous insight into the formation and evolution of the solar system. In addition, by virtue of its focus on the Saturnian satellite Titan, Cassini will return detailed data on an environment whose atmospheric chemistry may resemble that of the primitive Earth. The scientific objectives can be divided into five categories: Titan, Saturn, rings, icy satellites, and magnetospheres. The key area of interest to exobiologists is Titan; the other four scientific categories will be discussed briefly to provide a comprehensive overview of the Cassini Mission.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA. Ames Research Center, Exobiology in Solar System Exploration; p 229-248
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Spaceflight mechanics, 1993; AAS/AIAA Spaceflight Mechanics Meeting, 3rd, Pasadena, CA, Feb. 22-24, 1993, Parts 1 & 2 (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: Papers from the third annual Spaceflight Mechanics Meeting are presented. The topics covered include the following: attitude dynamics and control; large flexible structures; intercept and rendezvous; rendezvous and orbit transfer; and trajectory optimization.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: (ISSN 0065-3438); 1436 p.
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    A comet nucleus sample return mission (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A joint ESA/NASA proposal for the acquisition and delivery of samples of the cometary nucleus is considered, and the importance of such samples in providing input as to the origin of the solar system is underlined. Mission options employing all-chemical propulsion, solar electric propulsion, and a combination of the two are explored in detail. Conceptual spacecraft designs have been developed and mass performance estimates made for a wide range of possible targets. The importance of the use of some form of aerobraking during return to earth is noted. Methods for acquiring the nuclear samples are discussed, and characteristics of the mission operations are reviewed.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: IAF PAPER 87-447
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Cassini - A mission to the Saturnian system (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This international (NASA/ESA) mission, planned for a Titan IV/Centaur G-prime launch in the 1995-1997 era, consists of a Saturn Orbiter (a U.S. Mariner Mark II spacecraft) and a Titan Atmospheric Entry Probe (an ESA product). The mission profile is highly sophisticated in its astrodynamic aspects - a deep space Delta-V maneuver, followed by earth and Jupiter gravity assist flybys, with asteroid encounter(s) along the way. Saturn arrival is characterized by further multiple maneuvers resulting in the Titan probe delivery and a close orbiter flyby, to be followed by a 4-year Saturn system tour. Details of the trajectory design process are discussed.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AAS PAPER 87-423 , AAS/AIAA Astrodynamics Conference; Dec 06, 1987 - Dec 09, 1987; Kalispell, MT; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Telecommunications systems evolution for Mars Exploration (2003)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the evolution of telecommunication systems at Mars. It reviews the telecommunications capabilities, technology and limiting factors of current and planned Mars orbiters from Mars Global Surveyor to the planned Mars Telecommunications Orbiter (MTO).
    Keywords: Lunar and Planetary Science and Exploration
    Type: 54th International Astronautical Congress 2003; Sep 29, 2003; Bremen; Germany
    Format: text
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  • 6
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    Trajectory Options for a Potential Mars Mission Combining Orbiting Science, Relay and a Sample Return Rendezvous Demonstration (2012)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Mars sample return is a major scientific goal of the 2011 US National Research Council Decadal Survey for Planetary Science. Toward achievement of this goal, recent architecture studies have focused on several mission concept options for the 2018/2020 Mars launch opportunities. Mars orbiters play multiple roles in these architectures such as: relay, landing site identification/selection/certification, collection of on-going or new measurements to fill knowledge gaps, and in-orbit collection and transportation of samples from Mars to Earth. This paper reviews orbiter concepts that combine these roles and describes a novel family of relay orbits optimized for surface operations support. Additionally, these roles provide an intersection of objectives for long term NASA science, human exploration, technology development and international collaboration.
    Keywords: Space Communications, Spacecraft Communications, Command and Tracking; Lunar and Planetary Science and Exploration; Astrodynamics
    Type: International Symposium on Space Flight Dynamics (ISSFD); Oct 29, 2012 - Nov 02, 2012; Pasadena, CA; United States
    Format: text
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