Assertion: asteroid's parameter | /r/CapableOf | indicate the best time
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: The next PEU [parameter (23)] usually indicates the best time to make astrometric observations for orbit improvement, as will the PEU over the next 10 years [parameter (24)]. Special effort should be made to observe asteroids whose next PEUs are the greatest during the next 10 years [i.e., parameter (23) exceeds both parameters (24) and (25)]. Parameter (25) may be used to quantify the amount of orbital improvement that would result from observing at or near the date of next PEU.