Downlink Delay

The downlink delay constraint enforces a time gap between data sensing and its downlink.

It simulates the condition where the satellite is required to manoeuvre in order to align its antenna to the ground station.

Two time constants are defined

• Entry: Minimum time delay between end of downlink and start of sensing

• Exit: Minimum time delay between end of sensing and start of downlink.

The constraint will act on the visibility opportunities by trimming their duration to comply with the downlink delay. Therefore you need to create a sensing plan first and an antenna visibilities after.

Downlink delay constrain disabled:

Downlink delay constraint active (Exit = 400 seconds)