Missile: Eclipse Times

Generates a listing of all eclipse events. Eclipsing events are start and end of periods of partial lighting (penumbra) and periods of zero lighting (umbra).

Type: Interval data

Availability: Reports | Graphs

Name Dimension Type Description
Start Time DateFormat Real Number The start time of an interval.
Stop Time DateFormat Real Number The stop time of an interval.
Duration TimeUnit Real Number The duration of the interval.
Obstruction Unitless Text Name of the obstructing central body
Start Pass Number Unitless Text Not defined for this class of object.
Stop Pass Number Unitless Text Not defined for this class of object.
Current Condition Unitless Text Type of eclipsing event (penumbra or umbra) bounded by the start and stop times.
Worst Condition Unitless Text Maximum eclipse condition within the contiguous time period of partial illumination which contains the current interval. The contiguous time period of partial illumination may contain abutting and/or overlapping eclipse intervals from one or more eclipsing bodies. The worst condition may result from an eclipsing body different from the one associated with the current interval. For example, a period of penumbra due to the moon which has no associated period of umbra may overlap with a period of umbra due to the Earth and therefore report a worst condition of umbra. Useful for determining if a reported penumbra period leads to or follows an umbra period for the typical case of only Earth eclipsing.
Total Duration TimeUnit Real Number Total duration of the contiguous time period of partial illumination which contains the current interval. The contiguous time period of partial illumination may contain abutting and/or overlapping eclipse intervals from one or more eclipsing bodies. For the typical case of eclipsing by only the Earth, this represents the duration of the abutted penumbra-umbra-penumbra intervals.
Start Path Number Unitless Text Not defined for this class of object.
Stop Path Number Unitless Text Not defined for this class of object.

STK Programming Interface 11.0.1