Assertion: coordinate | /r/HasProperty | expressed as polynomial
Facets:
value: in time
type: TEMPORAL
Source sentences:
text: When coordinates are expressed as polynomials in time relative to a reference frame defined in this way, that means the values obtained for the coordinates in respect of any interval t after the stated epoch, are in terms of the coordinate system of the same date as the obtained values themselves, i.e. the date of the coordinate system is equal to (epoch + t).