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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    42,011 to 42,020 of 42,318 Results
    Unusual Radar Echoes From the Greenland Ice Sheet
    Jan 1, 1993
    Rignot, E.; Ostro, S.; Zyl, J. van; Jezek, K., 1993, "Unusual Radar Echoes From the Greenland Ice Sheet", https://hdl.handle.net/2014/35599, JPL Open Repository
    This paper describes the measurement of exotic radar signatures for icy surfaces in Greenland.
    A Highly Accurate Voight Function Algorithm
    Jan 1, 1993
    Shippony, Z.; Read, W., 1993, "A Highly Accurate Voight Function Algorithm", https://hdl.handle.net/2014/35492, UNKNOWN, JPL Open Repository
    A complex Voight lineshape algorithm is presented whose maximum relative error over the complex plane is less than 1 x 10 super minus 8. The algorithm consists of series, rational approximations and Gauss-Hermite integrations which makes it suitable as a general purpose software...
    The Extragalactic Distance Scale Key Project I: The Discovery of Cepheids and a New Distance to M81 Using The Hubble Space Telescope
    Jan 1, 1993
    Freedman, W.; Hughes, S.; Madore, B.; Mould, J.; Lee, M.; Stetson, P.; Kennicutt, R.; Turner, A.; Ferrarese, I.; Ford, H.; Graham, J.; Hill, R; Hoessel, J.; Huchra, J.; Illingworth, G., 1993, "The Extragalactic Distance Scale Key Project I: The Discovery of Cepheids and a New Distance to M81 Using The Hubble Space Telescope", https://hdl.handle.net/2014/35545, JPL Open Repository
    This paper presents initial observations, including the discovery of 30 Cepheids in the nearby galaxy M81, made using the Wide Field Camera (WFC).
    The Effects of Multipath on the Measurement of Antenna Time Delays
    Jan 1, 1993
    Otoshi, T., 1993, "The Effects of Multipath on the Measurement of Antenna Time Delays", https://hdl.handle.net/2014/35693, JPL Open Repository
    This paper describes the errors associated with measuring time delays of signals propagating through the primary path of a large Cassegrain antenna.
    Radio Emission From the Heliopause Triggered by an Interplanetary Shock
    Jan 1, 1993
    Gurnett, D.; Kurth, W.; Allendorf, S.; Poynter, R., 1993, "Radio Emission From the Heliopause Triggered by an Interplanetary Shock", https://hdl.handle.net/2014/35785, JPL Open Repository
    This paper describes radio emissions and their interpretation which have the potential of providing the first direct measurement of the distance to the heliopause.
    The Comet and Asteroid Impact Hazard in Perspective
    Jan 1, 1993
    Weissman, P., 1993, "The Comet and Asteroid Impact Hazard in Perspective", https://hdl.handle.net/2014/35673, Tuscon, Arizona, USA, JPL Open Repository
    This paper describes two aspects to the comet and asteroid hazard problem.
    An Optical Study of the Faint End of the Stellar Luminosity Function
    Jan 1, 1993
    Jarrett, T. H.; Dickman, R. L.; Herbst, W., 1993, "An Optical Study of the Faint End of the Stellar Luminosity Function", https://hdl.handle.net/2014/36303, Astrophysical Journal, JPL Open Repository
    We implement a new method by which to study the faint end of the field star luminosity function. The method relies on deep, multicolor photometry of fields projected against highly obscured, nearby molecular clouds. The clouds act as nearly opaque screens and delimit a well- defi...
    W134: A New Pre-Main Sequence Double-Lined Spectroscopic Binary
    Jan 1, 1993
    Padgett, Deborah L.; Stapelfeldt, Karl R., 1993, "W134: A New Pre-Main Sequence Double-Lined Spectroscopic Binary", https://hdl.handle.net/2014/36296, UNKNOWN, JPL Open Repository
    We report the discovery that the pre-main sequence star Walker 134 in the young cluster NGC 2264 is a double-lined spectroscopic binary.
    Design of a Molecular Memory Device: The Electron Transfer Shift Register Memory
    Jan 1, 1993
    Beratan, D., 1993, "Design of a Molecular Memory Device: The Electron Transfer Shift Register Memory", https://hdl.handle.net/2014/36339, New York, New York, USA, JPL Open Repository
    A molecular shift register memory at the molecular level is described. The memory elements consist of molecules can exit in either an oxidized or reduced state and the bits are shifted between the cells with photoinduced electron transfer reactions.
    Development of a Broadband Achromatic Twyman-Green Interferometer
    Jan 1, 1993
    Steimle, Lawrence J.; Wang, Yaujen, 1993, "Development of a Broadband Achromatic Twyman-Green Interferometer", https://hdl.handle.net/2014/36640, UNKNOWN, JPL Open Repository
    A modified Twyman-Green interferometer is in use that makes possible wavefront testing of optical filters at any wavelength from 200 to 1100 nanometers. The use of mirrors for collimation and pupil imaging makes the intrument achromatic, and therefore the focus is fixed over the...
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