The JPL Open Repository (JOR) replaced the JPL Technical Report Server (TRS) in 2023. It is a repository for digital copies of technical publications authored by JPL employees. It includes journal articles (the Final Accepted Version), meeting papers, presentations, and other publications cleared for external distribution from 1992 to the present. It also include research datasets from 2022 on.

Years covered: 1992 to the present.
  • 1992-2021 records were originally on the JPL Technical Report Server (TRS) on Dspace system; those records were migrated to Dataverse in 2022.
  • Records with publication date 2022 or later are native to the Dataverse.
  • Data sets: 2022 to present
  • There are a few pre-1992 records. Those were added to the system on a case-by-case request basis.

  • Persistent IDs (PIDs):
  • 1992-2021 records have Handles
  • 2022 and later records have Digital Object Identifiers (DOIs).
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    1 to 10 of 41,876 Results
    A simplified theory of porous wall cooling
    Nov 24, 1947
    Rannie, W.D.; Dunn, Louis G.; Millikan, Clark B., 1947, "A simplified theory of porous wall cooling", https://hdl.handle.net/2014/45706, Jet Propulsion Laboratory, Pasadena, California, November 24, 1947, JPL Open Repository
    No abstract provided
    An introduction to JPL's orbit determination program
    May 21, 1974
    Panagiotacoupulos, N. D.; Zielenbach, J. W.; Duesing, R. W., 1974, "An introduction to JPL's orbit determination program", https://hdl.handle.net/2014/41358, UNKNOWN, JPL Open Repository
    This document describes in general terms the spacecraft navigation process at JPL and the institutional elements involved in this effort. It cutlines the major computer and software systems used and indicates the basic functions of each of these components. It provides a thumbnai...
    Assessment of advanced coal gasification processes
    Jun 1, 1981
    McCarthy, John; Ferrall, Joseph; Charng, Thomas; Houseman, John, 1981, "Assessment of advanced coal gasification processes", https://hdl.handle.net/2014/40036, UNKNOWN, JPL Open Repository
    A technical assessment of the following advanced coal gasification processes: AVCO High Throughput Gasification (HTG) Process; Bell Single-Stage High Mass Flux (HMF) Process; Cities Service/Rockwell (CS/R) Hydrogasification Process; Exxon Catalytic Coal Gasification (CCG) Process...
    Progress Report 18 for the period February to July 1981 and Proceedings of the 18th Project Integration Meeting.
    Jul 15, 1981
    UNKNOWN, 1981, "Progress Report 18 for the period February to July 1981 and Proceedings of the 18th Project Integration Meeting.", https://hdl.handle.net/2014/41875, The 18th Project Integration Meeting, Pasadena, California, July 15-16, 1981, JPL Open Repository
    Progress in the low cost solar array project during the period February to July 1981 is reported. Included are: (1) project analysis and integration; (2) technology development in silicon material, large area silicon sheer and encapsulation; (3) process development; (4) engineeri...
    An analysis of digital phase-locked loops
    Feb 1, 1989
    Thomas, J. B., 1989, "An analysis of digital phase-locked loops", https://hdl.handle.net/2014/40039, UNKNOWN, JPL Open Repository
    This report focuses on second-order digital phase-locked loops (DPLLs) with uniformly sampled input, an amplitude-insenstive phase extractor and a conventional loop filter.
    The Modern Role of Visual Observations of Comets
    Sep 1, 1989
    Larson, S. M.; Edberg, S. J.; Levy, D. H., 1989, "The Modern Role of Visual Observations of Comets", https://hdl.handle.net/2014/35031, USA, JPL Open Repository
    This paper reviews the role of past and future visual observations in cometary research. The Strengths and limitations of visual observations are explored for the benefit of both investigators who might have to use them and observers who wish to make real contributions to the fie...
    Mission Analysis for Laser Interferometer Space Antenna (LISA)
    Jan 1, 1992
    Hechler, F.; Folkner, W. M., 1992, "Mission Analysis for Laser Interferometer Space Antenna (LISA)", https://hdl.handle.net/2014/26393, UNKNOWN, JPL Open Repository
    The interplanetary orbits of three pairs of spaceprobes carrying laser interferometer antennae are designed such that their miutual distances, i.e., the lengths of the interferometer arms remain nearly constant. The pairs move relative to each other in an equilateral triangle.
    Optimum Detection of Frequency-Hopped Signals
    Jan 1, 1992
    Cheng, Unjeng; Levitt, Barry; Polydoros, Andreas; Simon, Marvin K., 1992, "Optimum Detection of Frequency-Hopped Signals", https://hdl.handle.net/2014/36703, IEEE Transactions on Communications, JPL Open Repository
    This paper derives and analyzes optimum and near-optimum structures for detecting frequency-hopped (FH) signals with arbitrary modulation in additive white Gaussian noise. The principalmodulation formats considered are M-ary frequency-shift-keying (MFSK) with fast frequency hoppi...
    Smart Focal-Plane Technology for Micro-Instruments and Micro-Rovers
    Jan 1, 1992
    Fossum, Eric R., 1992, "Smart Focal-Plane Technology for Micro-Instruments and Micro-Rovers", https://hdl.handle.net/2014/35139, ['Workshop Proceedings - Microtechnology and Applications to Space Systems', 'Pasadena, CA'], JPL Open Repository
    It is inevitable that micro-instruments and micro-rovers for space exploration will contain one or more focal-plane arrays for imaging spectroscopy or navigation. In this paper, we explore the state-if-the-art in focal-plane technology for visible sensors. Also discussed is prese...
    Laboratory reflectance spectra of 160 minerals, 0.4 to 2.5 micrometers
    Feb 15, 1992
    Grove, C. I.; Hook, S. J.; Paylor, E. D. III, 1992, "Laboratory reflectance spectra of 160 minerals, 0.4 to 2.5 micrometers", https://hdl.handle.net/2014/40148, UNKNOWN, JPL Open Repository
    This reports provides reflectance spectra of 160 minerals in both digital and printed form.
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