Speed Extrema Study
The Speed Extrema Study generates an event whenever a transiting body reaches a maximum or minimum longitudinal speed.
Maximum Elongations Study
The Maximum Elongations Study generates an event each time an inferior planet (Mercury or Venus) reaches its greatest angular distance east or west of the Sun. At maximum western elongation, the planet is visible in the eastern sky before sunrise; at maximum eastern elongation, the planet is visible in the western sky after sunset.
Mundane Arcs Study
The Mundane Arcs Study generates an event whenever a transiting body has traveled a whole-number multiple of an arc value listed in the Arcs table. Use the study to track multiple-of-X-degree progressions for any body and arc length you choose.