org.orekit.files.ccsds.ndm.tdm

Class Observation

java.lang.Object

org.orekit.files.ccsds.ndm.tdm.Observation

public class Observation
extends Object

The Observation class contains the data from an observation line.

It is not an Orekit object yet. It is a simple container holding:

• a keyword, the type of the observation;
• a timetag, the epoch of the observation;
• a measurement, the value of the observation.

WARNING. The same class handles many different measurements types (range, Doppler, clocks, pressure, power to noise ratio…). Since Orekit 11.0, it uses only SI units, so angular measurements have already been converted in radians, range has been converted in meters (according to the range units, Doppler has been converted to meters per second. Up to Orekit 10.x, the measurements were raw measurements as read in the TDM.

Author:

Maxime Journot

Constructor Summary

Constructors

Constructor and Description
Observation(ObservationType type, AbsoluteDate epoch, double measurement) Simple constructor.

Method Summary

Modifier and Type	Method and Description
AbsoluteDate	getEpoch() Getter for the epoch.
double	getMeasurement() Getter for the measurement.
ObservationType	getType() Get the type of observation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Observation

public Observation(ObservationType type,
                   AbsoluteDate epoch,
                   double measurement)

Simple constructor.

Parameters:

type - type of the observation

epoch - the timetag

measurement - the measurement (in SI units, converted from TDM)

Method Detail

getType

public ObservationType getType()

Get the type of observation.

Returns:

type of observation

getEpoch

public AbsoluteDate getEpoch()

Getter for the epoch.

Returns:

the epoch

getMeasurement

public double getMeasurement()

Getter for the measurement.

Returns:

the measurement (in SI units, converted from TDM)