Animating Occultation Animating Occultation DataData

Ted BlankTed BlankHampton, NHHampton, NH

Select an occultation, extract timings from Occult and subset to one geographic area.

Grab a Google Map of the Geographic areacovered by the selected occultation data.

Import the map into Adobe After Effectsas the background

Add a “blue dot” at each observer’s location.(This requires translating latitude and longitude

into X and Y coordinates on the After Effects screen.)

Adjust the timeline of the animation to matchthe actual time period of the occultation.

Adjust the Opacity property of each blue dot “positive”so it disappears at the actual D time and

reappears at the actual R time.

Blue dots which are “negatives” stay at 100% opacity.

D timeR time

Opacity=100%

Opacity=0%

That’s it!You can manually add the asteroid shadow and

animate it to come close to the actual path if you wish

YouTube Animation

http://www.youtube.com/watch?v=P_vlUflA99k