Package org.orekit.files.ccsds.ndm.tdm

Class ObservationsBlock

java.lang.Object

org.orekit.files.ccsds.section.CommentsContainer

org.orekit.files.ccsds.ndm.tdm.ObservationsBlock

All Implemented Interfaces:

Data, Section

public class ObservationsBlock
extends CommentsContainer
implements Data

The Observations Block class contain metadata and the list of observation data lines.

Beware that the Orekit getters and setters all rely on SI units. The parsers and writers take care of converting these SI units into CCSDS mandatory units. The Unit class provides useful fromSi and toSI methods in case the callers already use CCSDS units instead of the API SI units. The general-purpose Unit class (without an 's') and the CCSDS-specific Units class (with an 's') also provide some predefined units. These predefined units and the fromSi and toSI conversion methods are indeed what the parsers and writers use for the conversions.

The reason for which the observations have been separated into blocks is that the different data blocks in a TDM file usually refers to different types of observations. An observation block is associated with a TDM metadata object and contains a list of observations. At this level, an observation is not an Orekit object, it is a custom object containing:

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

Author:

Maxime Journot

Constructor Summary

Constructors

Constructor	Description
ObservationsBlock()	ObservationsBlock constructor.

Method Summary

Modifier and Type	Method	Description
void	addObservation(Observation observation)	Adds an observation data line.
void	addObservation(ObservationType type, AbsoluteDate epoch, double measurement)	Adds an observation data line.
List<Observation>	getObservations()	Get the list of Observations data lines.
void	setObservations(List<Observation> observations)	Set the list of Observations Data Lines.

Methods inherited from class org.orekit.files.ccsds.section.CommentsContainer

acceptComments, addComment, checkAllowed, checkNotNaN, checkNotNegative, checkNotNull, getComments, refuseFurtherComments, setComments, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.files.ccsds.section.Section

validate

Constructor Details

ObservationsBlock

public ObservationsBlock()

ObservationsBlock constructor.

Method Details

getObservations

public List<Observation> getObservations()

Get the list of Observations data lines.

Returns:

a reference to the internal list of Observations data lines

setObservations

public void setObservations(List<Observation> observations)

Set the list of Observations Data Lines.

Parameters:

observations - the list of Observations Data Lines to set

addObservation

public void addObservation(Observation observation)

Adds an observation data line.

Parameters:

observation - the observation to add to the list

addObservation

public void addObservation(ObservationType type,
 AbsoluteDate epoch,
 double measurement)

Adds an observation data line.

Parameters:

type - type of the observation

epoch - the timetag

measurement - the measurement