Epsl

java.lang.Object
- gaiasky.util.gaia.BaseAttitudeDataServer<Attitude>
- - gaiasky.util.gaia.AnalyticalAttitudeDataServer
  - - gaiasky.util.gaia.Epsl

public class Epsl
extends AnalyticalAttitudeDataServer

Implementation of the Ecliptic Pole Scanning Law (EPSL)

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`Epsl.Mode`	Ecliptic pole scanning has two modes: PRECEDING (revolving phase angle = 0) and FOLLOWING (revolving phase angle = 180 deg).

Field Summary
- Fields inherited from class gaiasky.util.gaia.AnalyticalAttitudeDataServer
  ARCSEC_PER_S_TO_DEG_PER_DAY, FOUR_PI, nslSun, OBLIQUITY_DEG, OBLIQUITY_RAD, PI, PI_HALF, targetScanPeriod, TWO_PI, X_AXIS, Y_AXIS, Z_AXIS
- Fields inherited from class gaiasky.util.gaia.BaseAttitudeDataServer
  initialized, initialRequestedTimeContext, nativeTimeContext, withUncertaintiesCorrelations

Constructor Summary

Constructors
Constructor Description

Epsl()
Default constructor (uses Mode = PRECEDING):

Epsl(Epsl.Mode mode)
Constructor that allows to initialize preceding or following EPSL:

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Attitude`	`getAttitudeNative(long t)`	Evaluate the attitude in the native time system of the server
`Epsl.Mode`	`getMode()`
`double`	`getOmegaFull()`
`double`	`getOmegaMod4Pi()`
`void`	`setDefault()`	Set all parameters to default values (from GaiaParam)

Methods inherited from class gaiasky.util.gaia.AnalyticalAttitudeDataServer
getNominalSunVector, getNuRef, getOmegaRef, getRefTime, getTargetPrecessionRate, getTargetScanPeriod, getTargetScanRate, getXiRef, inGap, setNuRef, setOmegaRef, setRefTime, setTargetPrecessionRate, setTargetScanPeriod, setTargetScanRate, setXiRef

Methods inherited from class gaiasky.util.gaia.BaseAttitudeDataServer
getAttitude, getAttitude, isInitialized, setInitialized

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Epsl
```
public Epsl()
```
    Default constructor (uses Mode = PRECEDING):
  - Epsl
```
public Epsl(Epsl.Mode mode)
```
    Constructor that allows to initialize preceding or following EPSL:
    
    Parameters:
    
    mode - PRECEDING or FOLLOWING
- Method Detail
  - getAttitudeNative
```
public Attitude getAttitudeNative(long t)
```
    Description copied from class: BaseAttitudeDataServer
    
    Evaluate the attitude in the native time system of the server
    
    Specified by:
    
    getAttitudeNative in class BaseAttitudeDataServer<Attitude>
    
    Parameters:
    
    t - - the time elapsed since the epoch of J2010 in ns (TCB)
    
    Returns:
    
    attitude for the given time
    
    See Also:
    
    BaseAttitudeDataServer.getAttitude(long)
  - getMode
```
public Epsl.Mode getMode()
```
    Returns:
    
    current EPSL mode
  - setDefault
```
public void setDefault()
```
    Description copied from class: AnalyticalAttitudeDataServer
    
    Set all parameters to default values (from GaiaParam)
    
    Overrides:
    
    setDefault in class AnalyticalAttitudeDataServer
    
    See Also:
    
    AnalyticalAttitudeDataServer.setDefault()
  - getOmegaFull
```
public double getOmegaFull()
```
    Returns:
    
    non-truncated spin phase
  - getOmegaMod4Pi
```
public double getOmegaMod4Pi()
```
    Returns:
    
    spin phase normalised to range [0, 4 Pi]