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IO Aerospace

OMM

CCSDS OMM¶

The IO.Astrodynamics.CCSDS.OMM module supports loading, validating, serializing, and converting CCSDS Orbit Mean-Elements Messages.

Omm Class¶

Omm represents a parsed OMM message containing mean orbital elements and associated metadata.

Loading¶

Method	Description
`Omm.LoadFromFile(path, validateSchema?, validateContent?)`	Load from file with optional validation
`Omm.LoadFromString(xml, validateSchema?, validateContent?)`	Load from XML string
`Omm.LoadFromStream(stream, validateSchema?, validateContent?)`	Load from stream
`Omm.TryLoadFromFile(path, out omm, out result, ...)`	Non-throwing load with validation result

Saving¶

Method	Description
`SaveToFile(path, validateBeforeSave?)`	Save to file
`SaveToStream(stream, validateBeforeSave?)`	Save to stream
`ToXml()`	Serialize to XML string

Factory Methods¶

Method	Description
`Omm.CreateForTle(...)`	Create an OMM from TLE-compatible data
`Omm.CreateMinimal(...)`	Create a minimal OMM with required fields only

Properties¶

Property	Description
`IsTleCompatible`	Whether this OMM can be converted to a TLE
`ObjectName`	Satellite name
`CosparId`	Full COSPAR international designator (e.g., `1998-067A`)

Conversion & Validation¶

Method	Description
`ToTle()`	Convert to a `TLE` object (requires `IsTleCompatible`)
`Validate()`	Validate and return `OmmValidationResult`
`IsValid()`	Quick validity check (returns `bool`)

Supporting Types¶

Type	Description
`OmmReader`	Direct XML-to-object reader
`OmmWriter`	Direct object-to-XML writer
`OmmValidator`	Schema and content validation

COSPAR ID Format¶

OMM uses full COSPAR IDs such as 1998-067A. TLE uses abbreviated IDs such as 98067A. The conversion layer handles this automatically when calling ToTle().

Example¶

// Load and convert to TLE
var omm = Omm.LoadFromFile("satellite.omm",
    validateSchema: true, validateContent: true);

if (omm.IsTleCompatible)
{
    var tle = omm.ToTle();
    var state = tle.ToStateVector(new Time(2024, 6, 1, 12, 0, 0));
    Console.WriteLine($"Position: {state.Position}");
}

// Save back to XML
omm.SaveToFile("output.omm");

See Also¶