Constraint¶

class
astroplan.
Constraint
[source]¶ Bases:
object
Abstract class for objects defining observational constraints.
Methods Summary
__call__
(observer, targets[, times, ...])Compute the constraint for this class compute_constraint
(times, observer, targets)Actually do the real work of computing the constraint. Methods Documentation

__call__
(observer, targets, times=None, time_range=None, time_grid_resolution=<Quantity 0.5 h>)[source]¶ Compute the constraint for this class
Parameters: observer :
Observer
the observation location from which to apply the constraints
targets : sequence of
Target
The targets on which to apply the constraints.
times :
Time
The times to compute the constraint. WHAT HAPPENS WHEN BOTH TIMES AND TIME_RANGE ARE SET?
time_range :
Time
(length = 2)Lower and upper bounds on time sequence.
time_grid_resolution :
quantity
Timegrid spacing
Returns: constraint_result : 2D array of float or bool
The constraints, with targets along the first index and times along the second.

compute_constraint
(times, observer, targets)[source]¶ Actually do the real work of computing the constraint. Subclasses override this.
Parameters: times :
Time
The times to compute the constraint
observer :
Observer
the observaton location from which to apply the constraints
targets : sequence of
Target
The targets on which to apply the constraints.
Returns: constraint_result : 2D array of float or bool
The constraints, with targets along the first index and times along the second.
