Assertion: asteroid belt's object | /r/CapableOf | discover before closest approach
Facets:
Source sentences:
text: Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach
text: Rows highlighted green indicate objects discovered more than one week before closest approach
text: Rows highlighted blue indicate objects discovered more than one year before closest approach, i.e. objects successfully cataloged on a previous orbit, rather than being detected during final approach.