across.tools.visibility.constraints.pointing

Classes

PointingConstraint

Footprint based pointing constraint. A Pointing is defined

Module Contents

class PointingConstraint(/, **data)[source]

Bases: across.tools.visibility.constraints.base.ConstraintABC

Footprint based pointing constraint. A Pointing is defined as a Footprint with a start and end time. This constraint will calculate whether a target was within any set of pointings.

pointings[source]: List of Pointing objects.

start_time: AstropyDateTime defining the start of the pointing

end_time: AstropyDateTime defining the end of the pointing

pointings: list[across.tools.footprint.Pointing][source]

name: Literal[across.tools.core.enums.constraint_type.ConstraintType.POINTING][source]

short_name: Literal['Pointing'] = 'Pointing'[source]

__call__(time, ephemeris, coordinate)[source]

Evaluate the constraint at the given time(s) and coordinate.

Parameters:

time (Time) – The time(s) at which to evaluate the constraint.
coordinate (SkyCoord) – The sky coordinates to check against the constraint.
ephemeris (Ephemeris) – The ephemeris position(s) at which to evaluate the constraint. This parameter is not used in this specific constraint but is included for compatibility with the base class.

Returns:

A boolean array indicating whether the constraint is satisfied at the given time(s) and position(s). If time is scalar, returns a single boolean value. The constraint is satisfied if the coordinate is outside the footprint, OR if the time is outside the start and end time.

Return type:

ndarray