Assertion: asteroid's number | /r/HasProperty | assigned
Facets:
value: on receipt of a discovery announcement
type: TEMPORAL
value: nowadays
type: TEMPORAL
Source sentences:
text: Nowadays a number is assigned only after the orbit has been secured by 4 well-observed oppositions.
text: New numbers were assigned by the AN on receipt of a discovery announcement, and a permanent designation was then assigned once an orbit had been calculated for the new object.
text: If an orbit is ascertained, then numbers are assigned, given in the order of their discovery of the orbital elements.