Perfect GIF for every moment
Describe the moment. Jev reads it, searches, judges every candidate, and hands you the three best GIFs, stickers, memes and clips.
Pace needs two or more snapshots. This launch has 1, so velocity and momentum read as unmeasured rather than zero.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.