API

target

sensor

priority

schedule

class slewpy.schedule.LastObserved

Assign new pointings based on the targets with the most distant observation in time

assign_pointings(obs, sensor, time, max_pointings=1)

Assign pointing(s) to sensor based on a set of times

Parameters:

• obs (list of Targets) – set of known observations

• sensor (Sensor) – sensor to assign pointings

• times (astropy.Time) – current time in the simulation

• max_pointings (int) – maximum number of pointings to assign

• mode (str either "orbit" or "tracking") – defines how to return the pointing. If mode=orbit then return an orbit object otherwise return an ra,dec location

class slewpy.schedule.Manager

ABC class for how to assign pointings to a list of targets

abstract assign_pointings(obs, sensor, time, max_pointings, mode)

Assign pointing(s) to sensor based on a set of times

Parameters:

• obs (list of Targets) – set of known observations

• sensor (Sensor) – sensor to assign pointings

• times (astropy.Time) – current time in the simulation

• max_pointings (int) – maximum number of pointings to assign

• mode (str either "orbit" or "tracking") – defines how to return the pointing. If mode=orbit then return an orbit object otherwise return an ra,dec location

class slewpy.schedule.Scheduler(manager=<slewpy.schedule.LastObserved object>)

Class to schedule observations

Parameters:

• obs_targets (list ObsTarget) – set of known target objects

• manager (Manager) – deines how jobs are scheduled

slewpy.schedule.target_comp(target)

Custom comparison to sort by weight and last time observed or number of observations

transmission

hub

class slewpy.hub.Hub(env, request_pipe, data_pipe, sensor_list, obs_targets, target_pipe=None, scheduler=None, t0=<Time object: scale='tt' format='jyear_str' value=J2000.000>, runtime=None)

Central hub for satellite communications

Parameters:

• env (simpy Environment) – Discrete event environment

• request_pipe (simpy Pipe) – channel for sensors to request new targets

• data_pipe (simpy Pipe) – channel to receive observations from sensors

• sensor_list (list of Sensor objects) – set of sensors to communicate with

• targets (list of target objects) – this contains the true orbit information for all targets

• obs_targets (list of ObsTarget) – list of currently known Targets

• scheduler (Scheduler) – object that determines how targets are assigned to sensors

• t0 (astropy Time) – time at which the simulation starts

listen_new_target()

Listen for sensor to request a new set of pointings

listen_request()

Listen for sensor to request a new set of pointings

recieve_target_info()

Listen for sensor to send updated track information

send_target(sensor, pointings, obs_targets)

Send sensor a set of pointings and current set of observed targets

serializer

class slewpy.hub.Hub(env, request_pipe, data_pipe, sensor_list, obs_targets, target_pipe=None, scheduler=None, t0=<Time object: scale='tt' format='jyear_str' value=J2000.000>, runtime=None)

Central hub for satellite communications

Parameters:

• env (simpy Environment) – Discrete event environment

• request_pipe (simpy Pipe) – channel for sensors to request new targets

• data_pipe (simpy Pipe) – channel to receive observations from sensors

• sensor_list (list of Sensor objects) – set of sensors to communicate with

• targets (list of target objects) – this contains the true orbit information for all targets

• obs_targets (list of ObsTarget) – list of currently known Targets

• scheduler (Scheduler) – object that determines how targets are assigned to sensors

• t0 (astropy Time) – time at which the simulation starts

listen_new_target()

Listen for sensor to request a new set of pointings

listen_request()

Listen for sensor to request a new set of pointings

recieve_target_info()

Listen for sensor to send updated track information

send_target(sensor, pointings, obs_targets)

Send sensor a set of pointings and current set of observed targets

utils