Speed Extrema Study

The Speed Extrema Study generates an event whenever a transiting body reaches a maximum or minimum longitudinal speed.

Create a Speed Extrema Study

To add a new Speed Extrema Study to the active workspace:

1. Click Mundane Studies on the menu bar.
2. Click Longitudinal Studies, then click Speed Extrema in the submenu.

tip

You can also create a Speed Extrema Study from the toolbar by clicking the Arc Studies drop-down button and selecting Speed Extrema.

Events Captured

A Speed Extrema event occurs when a body's longitudinal speed reaches a local maximum or minimum. The Event Type column distinguishes between the speed extremum types Aquila reports (e.g., maximum direct speed, minimum retrograde speed).

Events Table Columns

The events table for a Speed Extrema Study contains the following columns:

Column	Description
Date Time	Date and time of the speed extremum event.
Event Type	Type of speed extremum (e.g., maximum direct speed, minimum retrograde speed).
Body	Name of the body reaching the speed extremum.
Body Longitude	Ecliptic longitude (or right ascension) of the body at the extremum.
Body Sign	Zodiac sign (with degrees) of the body.
Body Latitude	Ecliptic latitude (or declination) of the body.
Body Distance	Distance of the body from the coordinate origin.
Body Speed	Daily motion of the body (the extremum value).
Event Interval	Time interval since the previous speed extremum event.