BLbluestaq
Earth Orientation Parameters

GET /udl/eop/history

Changed on

Service operation to dynamically query historical data by a variety of query parameters not specified in this API documentation. See the queryhelp operation (/udl/<datatype>/queryhelp) for more details on valid/required query parameter information.

Request

  • Base URL
    https://unifieddatalibrary.com
  • URL
    https://unifieddatalibrary.com/udl/eop/history
  • Auth
    none declared

Query parameters

columnsstring

optional, fields for retrieval. When omitted, ALL fields are assumed. See the queryhelp operation (/udl/<datatype>/queryhelp) for more details on valid query fields that can be selected.

eopDatestring date-time required

Effective date/time for the EOP values in ISO8601 UTC format. The values could be current or predicted. (YYYY-MM-DDTHH:MM:SS.sssZ)

firstResultinteger
maxResultsinteger

Response

OK

idstring

Unique identifier of the record, auto-generated by the system.

classificationMarkingstring required

Classification marking of the data in IC/CAPCO Portion-marked format.

eopDatestring date-time required

Effective date/time for the EOP values in ISO8601 UTC format. The values could be current or predicted.

polarMotionState'I' | 'P'

Flag indicating Issued (I), or Predicted (P) for this record's polar motion values.

polarMotionXnumber double

The Bulletin A X coordinate value of earth polar motion at eopDate. Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust. This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). Measured in arc seconds.

polarMotionXUncnumber double

Estimated uncertainty/error in polarMotionX value in arc seconds.

polarMotionYnumber double

The Bulletin A Y coordinate value of earth polar motion at eopDate. Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust. This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). Measured in arc seconds.

polarMotionYUncnumber double

Estimated uncertainty/error in polarMotionY value in arc seconds.

ut1UTCState'I' | 'P'

Flag indicating Issued (I), or Predicted (P) for this record''s Bulletin A UT1-UTC values.

ut1UTCnumber double

The difference between the Bulletin A UT1 and UTC time scales as of eopDate in seconds.

ut1UTCUncnumber double

The estimated uncertainty/error in the ut1UTC value in seconds.

lodnumber double

Bulletin A length of day or LOD in milliseconds. Universal time (UT1) is the time of the earth clock, which performs one revolution in about 24h. It is practically proportional to the sidereal time. The excess revolution time is called length of day (LOD).

lodUncnumber double

The estimated uncertainty/error in the lod value in seconds.

nutationState'I' | 'P'

Flag indicating Issued (I), or Predicted (P) for this record's nutation values (dPSI and dEpsilon).

dPSInumber double

The Bulletin A offset in longitude dDy1980 with respect to the IAU 1976 Theory of Precession and the IAU 1980 Theory of Nutation, measured in milliseconds of arc. Note: dPSI is not used when this record represents IAU 2000 data.

dPSIUncnumber double

The estimated uncertainty/error in the dPSI value in milliseconds of arc.

dEpsilonnumber double

The Bulletin A offset in obliquity dDe1980 with respect to the IAU 1976 Theory of Precession and the IAU 1980 Theory of Nutation, measured in milliseconds of arc. Note: dEpsilon is not used when this record represents IAU 2000 data.

dEpsilonUncnumber double

The estimated uncertainty/error in the dEpsilon value in milliseconds of arc.

dXnumber double

The Bulletin A celestial pole offset along x-axis with respect to the IAU 2000A Theory of Precession and Nutation, measured in milliseconds of arc. Note: dX is not used when this record represents IAU 1980 data.

dXUncnumber double

The estimated uncertainty/error in the Bulletin A dX value, in milliseconds of arc.

dYnumber double

The Bulletin A celestial pole offset along y-axis with respect to the IAU 2000A Theory of Precession and Nutation, measured in milliseconds of arc. Note: dY is not used when this record represents IAU 1980 data.

dYUncnumber double

The estimated uncertainty/error in the Bulletin A dY value, in milliseconds of arc.

polarMotionXBnumber double

Bulletin B X coordinate value of earth polar motion at eopDate. Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust. This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). Measured in arc seconds.

polarMotionYBnumber double

Bulletin B Y coordinate value of earth polar motion at eopDate. Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust. This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). Measured in arc seconds.

ut1UTCBnumber double

The Bulletin B difference between the UT1 and UTC time scales as of eopDate in seconds.

dPSIBnumber double

The Bulletin B offset in longitude dDy1980 with respect to the IAU 1976 Theory of Precession and the IAU 1980 Theory of Nutation, measured in milliseconds of arc. Note: dPSIB is not used when this record represents IAU 2000 data.

dEpsilonBnumber double

The Bulletin B offset in obliquity dDe1980 with respect to the IAU 1976 Theory of Precession and the IAU 1980 Theory of Nutation, measured in milliseconds of arc. Note: dEpsilonB is not used when this record represents IAU 2000 data.

dXBnumber double

The Bulletin B celestial pole offset along the X-axis with respect to the IAU 2000A Theory of Precession and Nutation, measured in milliseconds of arc. Note: dXB is not used when this record represents IAU 1980 data.

dYBnumber double

The Bulletin B celestial pole offset along the Y-axis with respect to the IAU 2000A Theory of Precession and Nutation, measured in milliseconds of arc. Note: dYB is not used when this record represents IAU 1980 data.

precessionNutationStdstring

The IAU Theory of Precession and Theory of Nutation applied to the data in this record. IAU1980 records employ the IAU 1976 Theory of Precession and IAU 1980 Theory of Nutation, and IAU2000 records employ the IAU 2000A Theory of Precession and Nutation.

rawFileURIstring

Optional URI location in the document repository of the raw file parsed by the system to produce this record. To download the raw file, prepend https://udl-hostname/scs/download?id= to this value.

sourcestring required

Source of the data.

originstring

Originating system or organization which produced the data, if different from the source. The origin may be different than the source if the source was a mediating system which forwarded the data on behalf of the origin system. If null, the source may be assumed to be the origin.

dataMode'REAL' | 'TEST' | 'SIMULATED' | 'EXERCISE' required

Indicator of whether the data is REAL, TEST, EXERCISE, or SIMULATED data:

REAL: Data collected or produced that pertains to real-world objects, events, and analysis.

TEST: Specific datasets used to evaluate compliance with specifications and requirements, and for validating technical, functional, and performance characteristics.

EXERCISE: Data pertaining to a government or military exercise. The data may include both real and simulated data.

SIMULATED: Synthetic data generated by a model to mimic real-world datasets.

createdAtstring date-time

Time the row was created in the database, auto-populated by the system.

createdBystring

Application user who created the row in the database, auto-populated by the system.

updatedAtstring date-time

Time the row was last updated in the database, auto-populated by the system.

updatedBystring

Application user who updated the row in the database, auto-populated by the system.

origNetworkstring

The originating source network on which this record was created, auto-populated by the system.

Example response

[
  {
    "id": "EOP-ID",
    "classificationMarking": "U",
    "eopDate": "2018-01-01T16:00:00.123Z",
    "polarMotionState": "I",
    "polarMotionX": 0.182987,
    "polarMotionXUnc": 0.000672,
    "polarMotionY": 0.168775,
    "polarMotionYUnc": 0.000345,
    "ut1UTCState": "I",
    "ut1UTC": -0.1251659,
    "ut1UTCUnc": 0.0000207,
    "lod": 1.8335,
    "lodUnc": 0.0201,
    "nutationState": "I",
    "dPSI": -10.437,
    "dPSIUnc": 0.507,
    "dEpsilon": -0.917,
    "dEpsilonUnc": 0.165,
    "dX": -0.086,
    "dXUnc": 0.202,
    "dY": 0.13,
    "dYUnc": 0.165,
    "polarMotionXB": 0.1824,
    "polarMotionYB": 0.1679,
    "ut1UTCB": -0.1253,
    "dPSIB": -9.9,
    "dEpsilonB": -1.7,
    "dXB": 0.129,
    "dYB": -0.653,
    "precessionNutationStd": "IAU1980",
    "rawFileURI": "Example URI",
    "source": "Bluestaq",
    "origin": "THIRD_PARTY_DATASOURCE",
    "dataMode": "TEST",
    "createdAt": "2018-01-01T16:00:00.123Z",
    "createdBy": "some.user",
    "updatedAt": "2018-01-01T16:00:00.123Z",
    "updatedBy": "some.user",
    "origNetwork": "OPS1"
  }
]

Changes

  • 4e1cbc17e814Revision changes
    • info

      added the new optional query request parameter firstResult

    • info

      added the new optional query request parameter maxResults

  • 75f764c843a9Revision changes
    • info

      api operation id findAllHistory_15 removed and replaced with

    • info

      the endpoint scheme security BasicAuth was removed from the API

Some revisions have not been checked yet.