https://github.com/cprosche/godm

ODM handling in Go
https://github.com/cprosche/godm

Last synced: 5 months ago
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ODM handling in Go

• Host: GitHub
• URL: https://github.com/cprosche/godm
• Owner: cprosche
• License: mit
• Created: 2025-01-09T16:26:14.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2025-01-25T02:51:10.000Z (over 1 year ago)
• Last Synced: 2025-01-25T03:23:50.382Z (over 1 year ago)
• Language: Go
• Size: 2.11 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# godm

ODM handling in Go

Implements the CCSDS ODM standard, April 2023 Edition: https://public.ccsds.org/Pubs/502x0b3e1.pdf

## OPM - Orbit Parameter Message

> An OPM specifies the position and velocity of a single object at a specified epoch.

> Optionally, osculating Keplerian elements may be provided. It should be noted that a

> sequence of OPMs for either a single object or for multiple objects can be aggregated into a

> single Navigation Data Message (NDM) XML file as described in 8.12 and shown in

> annex G. This message is suited to exchanges that (1) involve automated interaction and/or

> human interaction, and (2) do not require high-fidelity dynamic modeling.

> The OPM requires the use of a propagation technique to determine the position and velocity

> at times different from the specified epoch, leading to a higher level of effort for software

> implementation than for the OEM.

>

> The OPM also contains an optional 6x6 position/velocity covariance matrix that reflects the

> uncertainty of the orbit state and may be used in the propagation process to estimate future

> uncertainties.

>

> The OPM allows for modeling of any number of maneuvers (as both finite and instantaneous

> events) and simple modeling of solar radiation pressure and atmospheric drag.

> Though primarily intended for use by computers, the attributes of the OPM also make it

> suitable for applications such as exchanges by email, FAX, or voice, or applications in which

> the message is to be frequently interpreted by humans.

CCSDS ODM Standard, April 2023 Edition, Section 2.1