stella.merit

Class OppositionMerit

java.lang.Object

util.PropertyContainer

stella.merit.AbstractMerit

stella.merit.OppositionMerit

All Implemented Interfaces:

Serializable, Cloneable, Meriting, PropertySupplying

public class OppositionMerit
extends AbstractMerit

A merit calculating its merit from the opposition time of the target. If a program duration is given, half of it is reduced from the opposition date of the object to center opposition at the middle of the program. The merit is modeled with a gaussian function, whose fwhm is given with the KEY_AROUNDDAY key, that points to a duration in days. This merit is only active if the number of successful observations of the target is zero, otherwise one is returned. It is used to start the observation of Doppler imaging targets close to their opposition.

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Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static double	DEFAROUNDDAY Default value for the priority stretch.
private static double	DEFPROGRAMDAY Default value for the priority impact.
private static String	DEFSOLOPPOSITION Default airmass parameter name.
private static String	DEFTIME Default time parameter name.
static String	KEY_AROUNDDAY The time around oposition when the merit drops to 1/2.
static String	KEY_PROGRAMDAY The key linked to the duration of the program in days.
static String	KEY_SOLOPPOSITION The key pointing to the name of the opposition parameter.
static String	KEY_TIME The key pointing to the current time.

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Constructor Summary

Constructors

Constructor and Description
OppositionMerit(Map prop) Constructs a new opposition merit.

Method Summary

Modifier and Type	Method and Description
double	getMerit(GlobalGrouping set, Appointable target, Collection ignore, long span) Calculates the actual gain using the airmass of the target.

Methods inherited from class stella.merit.AbstractMerit

createMerit, getInitializer, initMerit

Methods inherited from class util.PropertyContainer

augment, augment, augment, augment, augment, clone, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, initProperties, isNew, parseObject, parseObject, reload, reload, removeProperty, requires, rescanned, setObject, setProperties, setProperty, stringProperties, toString

Methods inherited from class java.lang.Object

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

Field Detail

KEY_PROGRAMDAY

public static final String KEY_PROGRAMDAY

The key linked to the duration of the program in days.

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Constant Field Values

KEY_AROUNDDAY

public static final String KEY_AROUNDDAY

The time around oposition when the merit drops to 1/2.

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Constant Field Values

KEY_SOLOPPOSITION

public static final String KEY_SOLOPPOSITION

The key pointing to the name of the opposition parameter.

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Constant Field Values

KEY_TIME

public static final String KEY_TIME

The key pointing to the current time.

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Constant Field Values

DEFPROGRAMDAY

private static final double DEFPROGRAMDAY

Default value for the priority impact.

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Constant Field Values

DEFAROUNDDAY

private static final double DEFAROUNDDAY

Default value for the priority stretch.

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Constant Field Values

DEFSOLOPPOSITION

private static final String DEFSOLOPPOSITION

Default airmass parameter name.

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Constant Field Values

DEFTIME

private static final String DEFTIME

Default time parameter name.

See Also:

Constant Field Values

Constructor Detail

OppositionMerit

public OppositionMerit(Map prop)

Constructs a new opposition merit. Proper creation should be done using the AbstractMerit.createMerit(java.util.Map<java.lang.String, java.lang.String>) method.

Method Detail

getMerit

public double getMerit(GlobalGrouping set,
                       Appointable target,
                       Collection ignore,
                       long span)

Calculates the actual gain using the airmass of the target. The gain is higher if the airmass is low. The steepness of the gain decrease with airmass is governed with the #KEY_SUNRISE parameter.

Parameters:

set - Current observing conditions.

target - The actual target.

ignore - All targets, observable or not.

span - The relevant time span in ms.