JPL Technical Report Server: Recent submissions

  • Pham, Timothy; Liao, Jason (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-13)
    This paper presents a characterization of performance of 32-GHz Ka-band link in an operational environment. The data come from tracking of Kepler spacecraft by the NASA Deep Space Network (DSN) in the past few years. Ka-band ...
  • Jones, Drew Ryan (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-12)
    Ballistic trajectories are computed which would enable a sample return mission to Titan or Enceladus without capturing, descending, or landing. The low-cost mission concept utilizes a free return trajectory that also ...
  • Jones, Drew Ryan (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-12)
    Ballistic trajectories are computed which would enable a sample return mission to Europa without capturing, descending, or landing. The low-cost mission concept utilizes a free return trajectory that also involves a close ...
  • Jorns, Benjamin A.; Lopez Ortega, Alejandro; Mikellides, Ioannis G. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    Self-consistent expressions are derived for the impact of ion acoustic turbulence (IAT) on the fluid properties of electrons and ions in the plume of a hollow cathode. This instability is believed to have a dominant role ...
  • Steeves, John; Jackson, Kathryn; Pellegrino, Sergio; Redding, David; Wallace, J. Kent; Bradford, Samuel Case; Barbee, Troy (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-06-26)
    A novel active mirror technology based on carbon fiber reinforced polymer (CFRP) substrates and replication techniques has been developed. Multiple additional layers are implemented into the design serving various functions. ...
  • Taber, William; Port, Dan (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-08)
    The Mission Design and Navigation Software Group at the Jet Propulsion Laboratory (JPL) maintains mission critical software systems. We have good empirical data and models for maintenance demand—when defects will occur, ...
  • Steeves, John; Martin, Stefan; Webb, David; Lisman, Douglas; Shaklan, Stuart (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-06-26)
    The use of a starshade is one technique to perform high contrast imaging with space-based telescopes. The primary function of a starshade is to suppress light from a target star in order to image its orbiting planets. In ...
  • Marrese-Reading, Colleen M.; Anderson, John; Jung-Kubiak, Cecile; Greer, Frank; Rouhi, Nima; Wilson, Dan; White, Victor; Dickie, Matt; Mueller, Rich; Singh, Vritika; Mackie, William; Wirz, Richard; Gamero-Castano, Manuel (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    A design for silicon microfabricated emitter arrays was developed for electrospray thrusters for indium propellant in compact architectures with scalable thrust, low mass and volume, high specific impulse and high efficiency ...
  • Marrese-Reading, Colleen M.; Anderson, John; Jung-Kubiak, Cecile; Polk, James; Singh, Vritika; Yee, Karl; White, Victor; Wilson, Dan; Bruneau, Peter; Rouhi, Nima; Greer, Frank; Borgonia, John Paul; Dickie, Matt; Muller, Rich; Ziemer, John; Gray, Andrew; Mueller, Juergen; Wirz, Richard; Gamero-Castano, Manuel (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    The feasibility of a microfabricated indium-fueled electrospray thruster with excellent performance was demonstrated. High efficiency electrospray thrusters with microfabricated components are under development for very ...
  • Smith, Jonathan; Taber, William; Drain, Theodore; Evans, Scott; Evans, James; Guervara, Michelle; Schulze, William; Sunseri, Richard; Wu, Hsi-Cheng (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-11)
    The Mission Analysis, Operations, and Navigation Toolkit Environment (MONTE) is the Jet Propulsion Laboratory’s (JPL) signature astrodynamic computing platform. It was built to support JPL’s deep space exploration program, ...
  • Dodson, Christopher A.; Perez-Grande, Daniel; Jorns, Benjamin A.; Goebel, Dan M.; Wirz, Richard E. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    Increasingly long-duration space missions require a better understanding of the failure mechanisms of hollow cathodes to enable prediction of lifetime. Energetic ions have been measured in the plume of hollow cathodes but ...
  • Ho, Amanda K.; Jorns, Benjamin A.; Mikellides, Ioannis G.; Goebel, Dan M.; Lopez Ortega, Alejandro (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    The results of a wear test on a 100-A LaB6 hollow cathode are presented as verification of a technique to mitigate keeper erosion caused by sputtering from anomalously high-energy ions. The ions responsible for this erosion ...
  • Smith, Kevin L.; Li, Billy Chun-Yip; Firdosy, Samad; Sujittosakul, Sutine; Errico, Michael; Nakatsukasa, George; Fleurial, Jean-Pierre; Ewell, Richard (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    The Thermal Energy Conversion Technologies Group at the Jet Propulsion Laboratory has been pursuing the development of thermopiles capable of higher temperature operation in support of terrestrial and space sensing ...
  • Katz, Ira; Lopez Ortega, Alejandro; Jorns, Benjamin A.; Mikellides, Ioannis G. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    In this paper we present for the first time a conjecture that the electron transport in Hall thrusters is controlled by ion acoustic waves in two distinct ion populations. The first, and largest population, is the main ...
  • Burleigh, S.; Caini, C.; Messina, J.J.; Rodolfi, M. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-26)
    Routing in Delay-/Disruption-Tolerant Networking (DTN) has long been recognized as a challenging research topic. The difficulty lies in the fact that link intermittency and network partitioning, possibly coupled with long ...
  • Ramesham, Rajeshuni; Dawson, Stephen F.; Ulloa-Severino, Antonio (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-10)
    In this paper, we will present the solar array materials properties for cryogenic temperatures down to 20 K temperatures and the thermal cycling qualification test results from 133 K to 50 K for three times the mission ...
  • Karban, Robert; Dekens, Frank G.; Herzig, Sebastian; Elaasar, Maged; Jankevicius, Nerijus (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-06-26)
    Applying systems engineering across the life-cycle results in a number of products built from interdependent sources of information using different kinds of system level analysis. This paper focuses on leveraging the ...
  • Farias, Edgardo; Redmond, Matthew; Karp, Ashley; Shotwell, Robert; Mechentel, Flora; Story, George (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-07-25)
    A Mars Ascent Vehicle (MAV) would be a critical part of a potential Mars sample return campaign. As currently envisioned, the MAV would launch samples from Mars into Mars orbit. Challenging requirements would be placed on ...
  • Shishko, Robert; Fradet, Rene; Saydam, Serkan; Tapia-Cortez, Carlos; Dempster, Andrew G.; Coulton, Jeff; Do, Sydney (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-09-12)
    This database, the Mars Colony Architecture Model (MCAM), is then linked to a variety of “downsteam” analytic models. In particular, we integrated an Extraction Process (i.e., “Mining”) Model, an Infrastructure and Integrated ...
  • Wang, Xu; Shi, Fang; Wallace, J. Kent (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016, 2016-06-26)
    ZWFS is known to be photon noise optimal for measuring low order aberrations. Recently, ZWFS was selected as the baseline LOWFS technology on WFIRST for its sensitivity, accuracy, and its ease of integration with the ...

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