KBE3D / KBSatellite / _satellitejs / OMMJsonObjectV3

接口: OMMJsonObjectV3

This is the base interface for the OMM JSON object as specified in Orbit Data Messages recommended standard, version 3.0.

Note that this is not a 1:1 mapping. Only the fields that are necessary to propagate a satellite orbit are made required. For example, CCSDS_OMM_VERS is required by the spec, but is not present in Celestrak OMM output, and is not required to propagate the satellite, so it is made optional here.

Numeric fields may be represented as strings or numbers in the original json, depending on the source. This is because the spec doesn't specify the type, and different sources use different types: at the time of writing, Celestrak uses numbers, while SpaceTrack uses strings.

可索引

[key: string]: unknown

This handles additional metadata, such as OBJECT_TYPE, COUNTRY_CODE etc

属性

OBJECT_NAME

OBJECT_NAME: string

OBJECT_ID

OBJECT_ID: string

Recommended, but not required, to be an International spacecraft designator.

EPOCH

EPOCH: string

ISO datetime

MEAN_MOTION

MEAN_MOTION: string | number

ECCENTRICITY

ECCENTRICITY: string | number

INCLINATION

INCLINATION: string | number

Degrees

RA_OF_ASC_NODE

RA_OF_ASC_NODE: string | number

ARG_OF_PERICENTER

ARG_OF_PERICENTER: string | number

Degrees

MEAN_ANOMALY

MEAN_ANOMALY: string | number

Degrees

NORAD_CAT_ID

NORAD_CAT_ID: string | number

ELEMENT_SET_NO

ELEMENT_SET_NO: string | number

BSTAR

BSTAR: string | number

MEAN_MOTION_DOT

MEAN_MOTION_DOT: string | number

MEAN_MOTION_DDOT

MEAN_MOTION_DDOT: string | number

CCSDS_OMM_VERS?

optional CCSDS_OMM_VERS: `3.${string}`

The version is restricted in TypeScript to only among the ones this library supports. Versions are incremented on breaking changes, so it is adviced you validate this field.

NOTE: This is required field in OMM spec, but Celestrak omits it, so we make it optional and assume version 3.0 if not present.

COMMENT?

optional COMMENT: string

CLASSIFICATION?

optional CLASSIFICATION: string

CENTER_NAME?

optional CENTER_NAME: "EARTH"

NOTE: This is required field in OMM spec, but Celestrak omits it, so we make it optional. If present, it is restricted to only the value this library supports.

REF_FRAME?

optional REF_FRAME: "TEME"

NOTE: This is required field in OMM spec, but Celestrak omits it, so we make it optional. If present, it is restricted to only 'TEME' as it is the only value that can come with SGP ephemeris type.