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 includes 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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    84,031 to 84,040 of 84,675 Results
    The Long Term Motion of Comet P/Swift-Tuttle
    May 13, 1993
    Yau, K.; Yeomans, D.; Weissman, P., 1993, "The Long Term Motion of Comet P/Swift-Tuttle", https://hdl.handle.net/2014/35308, ['Bulletin of the American Astronomical Society', 'Santa Barbara, California, USA'], JPL Open Repository
    The orbit of P/Swift-Tuttle is investigated by way of a long term integration forward to +2392 and backward to -702.
    Stochastic Parameters in Lunar Laser Ranging
    May 13, 1993
    Newhall, X., 1993, "Stochastic Parameters in Lunar Laser Ranging", https://hdl.handle.net/2014/35322, Santa Barbara, California, USA, JPL Open Repository
    This oral presentation describes the techniques, algorithms, and results of incorporatng a Kalman-smoothing technique into the square-root information filter when estimating deterministic and stochastic parameters relating to Earth, the Moon, and the lunar and planetary ephemerid...
    The Observations of Neptune by Lalande in 1795
    May 13, 1993
    Standish, E., 1993, "The Observations of Neptune by Lalande in 1795", https://hdl.handle.net/2014/35211, Santa Barbara, CA, USA - Amer. Astro. Soc./Dynamical Division, Dynamical Astronomy, JPL Open Repository
    No abstract provided
    NDE Activity at Jet Propulsion Laboratory
    May 11, 1993
    Bar-Cohen, Y., 1993, "NDE Activity at Jet Propulsion Laboratory", https://hdl.handle.net/2014/35296, Downey, California, USA, JPL Open Repository
    None, This is a viewgraph outline from an oral presentation. From Intro.: Our speaker will review the NDE technology under development at the Jet Propulsion Laboratory (JPL). Emphasis will be given to Ultrasonics and application of sensors to space technology. Further, the effort...
    A Parallel Toolset for Intervisibility Analysis
    May 10, 1993
    Kreitzberg, T., 1993, "A Parallel Toolset for Intervisibility Analysis", https://hdl.handle.net/2014/34824, ['North American Transputer Users Group', 'Vancouver, British Columbia, Canada'], JPL Open Repository
    The ability to determine line-of-sight over a digital elevation model is usefull in a variety of fields.
    Hop Timing Estimation for Noncoherent Frequency-Hopped
    May 10, 1993
    Simon, Marvin K.; Cheng, Unjeng; Levitt, Barry K., 1993, "Hop Timing Estimation for Noncoherent Frequency-Hopped", https://hdl.handle.net/2014/35372, USA, JPL Open Repository
    The optimum hop timing estimator (based on likelihood-ratio (LR)) theory is derived for noncoherent slow and fast frequency-hopped M-FSK intercept receivers.
    Nonlinear Barotropic Instability in the Stratosphere
    May 10, 1993
    Manney, G., 1993, "Nonlinear Barotropic Instability in the Stratosphere", https://hdl.handle.net/2014/34926, ['American Meteorological Society', 'San Antonio, Texas, USA'], JPL Open Repository
    A number of linear studies suggest that some planetary scale waves in the stratosphere may arise from barotropic instability; the behavior of these barotropic modes at finite amplitudes has not previously been explored.
    Thin Film GaAs For Space--Moving Out of the Laboratory
    May 10, 1993
    Stella, Paul M.; Kurland, Richard M.; Mesch, Hans G., 1993, "Thin Film GaAs For Space--Moving Out of the Laboratory", https://hdl.handle.net/2014/35315, Louisville, KY, USA, JPL Open Repository
    In 1991, NASA-JPL completed the APSA (Advanced Photovoltaic Solar Array) program, demonstrating a lightweight deployable flexible array wing capable of 130 W/kg specific performance, a substantial improvement over convetional flight hardware. The design was based on the use of th...
    Dimensional Stability of Metallized and Nonmetallized Polymeric Composites
    May 10, 1993
    O'Donnell, T.; Lewis, D.; Clark, M.; Dolgin, B.; Sokolowski, W., 1993, "Dimensional Stability of Metallized and Nonmetallized Polymeric Composites", https://hdl.handle.net/2014/35251, ['Society for the Advancement of Material and Process Engineering', 'Anaheim, California, USA'], JPL Open Repository
    The effects of various time, temperature, vacuum, and moisture environments on four types of metallized and bare graphite/epoxy, bare graphite/peek samples, and a coated graphite/cyanate ester sample were evaluated.
    Nonlinear Barotropic Instability in the Stratosphere
    May 10, 1993
    Manney, G., 1993, "Nonlinear Barotropic Instability in the Stratosphere", https://hdl.handle.net/2014/34895, ['American Meteorological Society', 'San Antonio, Texas, USA'], JPL Open Repository
    Several linear studies suggest that planetary scale waves in the stratosphere may arise from barotropic instability.
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