Osculating/Mean Orbital Element Conversion (C version) (OSMEANC) is a C-language computer program that performs precise conversions between osculating and mean classical orbital elements. OSMEANC can be used for precise design of spacecraft missions and maneuvers and precise calculation of planetary orbits. The program accounts for the full complexity of gravitational fields, including aspherical and third-body effects. In comparison with prior software used for the same purposes, OSMEANC offers greater accuracy in conversion: By virtue of inclusion of high-order gravitational and third-body effects, variations in semimajor axes are calculated to meter-level accuracy. OSMEANC is delivered as a callable shared library. It can be built for any platform with a C compiler. The user interface is via a Python-language wrapper script that can be replaced by the user. OSMEANC is mature and is the product of a significant upgrade from a Fortran version that has been in use since 1991.
This program was written by Joseph Guinn, Min-Kun Chung, and Mark Vincent of Caltech for NASA's Jet Propulsion Laboratory. For further information, access the Technical Support Package (TSP) free online at www.techbriefs.com/tsp under the Software category.
This software is available for commercial licensing. Please contact Karina Edmonds of the California Institute of Technology at (818) 393-2827. Refer to NPO-41115.This Brief includes a Technical Support Package (TSP).
Conversion Between Osculating and Mean Orbital Elements
(reference NPO-41115) is currently available for download from the TSP library.
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Overview
The document is a Technical Support Package from NASA, specifically focusing on the conversion between osculating and mean orbital elements, identified by the NPO-41115 reference number. It is associated with a software application called OSMEANC, which stands for Osculating/Mean Orbital Element Conversion (C version). The software is based on the research presented in the paper titled “Periodic Gravitational Perturbations for Conversion between Osculating and Mean Orbit Elements” by Joseph R. Guinn, which was presented at the AAS/AIAA Astrodynamics Specialist Conference in Durango, Colorado, in August 1991.
The primary purpose of this document is to disseminate the results of aerospace-related developments that have potential technological, scientific, or commercial applications. It is part of NASA's Commercial Technology Program, which aims to make innovative technologies accessible to a broader audience. The document emphasizes the importance of understanding the conversion between osculating and mean orbital elements, which is crucial for various applications in astrodynamics and space mission planning.
Additionally, the Technical Support Package provides information on how to access further assistance and resources related to the topic. It mentions the NASA Scientific and Technical Information (STI) Program Office, which offers a variety of publications and support for those interested in aerospace research and technology. The STI Program Office can be contacted through their website or directly via phone and email for inquiries.
The document also includes a notice regarding the liability of the United States Government and its representatives concerning the use of the information contained within. It clarifies that any trade names or manufacturers’ names mentioned are for identification purposes only and do not imply official endorsement by NASA.
Overall, this Technical Support Package serves as a valuable resource for researchers, engineers, and professionals in the aerospace field, providing insights into the conversion of orbital elements and facilitating access to further information and support from NASA.
