How Do I Search By Time?

The easiest way to search a specific time in Observe is to use the time picker. Simply select a time, or enter the specific earliest and latest dates and times, then click Run.

You may also want to construct a URL or API command using earliest and latest dates and times.

For more complex cases, such as working within OPAL and comparing multiple time frames, the frame function or timeshift verb might be necessary. For instance, to search in the last fifteen minutes:

timechart
    frame(back: 15m),
    force:mass*velocity,
    group_by(SwallowSpecies)