edu.nrao.sss.measure
Enum FluxDensityUnits

java.lang.Object
  java.lang.Enum<FluxDensityUnits>
      edu.nrao.sss.measure.FluxDensityUnits

All Implemented Interfaces:

Symbolic, Serializable, Comparable<FluxDensityUnits>

public enum FluxDensityUnits
extends Enum<FluxDensityUnits>
implements Symbolic

Units of measure for flux densities.

Table of Units

Element	Name(s)1	Symbol(s)2	Cycles per Second
YOCTOJANSKY	YOCTOJANSKY	yJy	10-24
ZEPTOJANSKY	ZEPTOJANSKY	zJy	10-21
ATTOJANSKY	ATTOJANSKY	aJy	10-18
FEMTOJANSKY	FEMTOJANSKY	fJy	10-15
PICOJANSKY	PICOJANSKY	pJy	10-12
NANOJANSKY	NANOJANSKY	nJy	10-9
MICROJANSKY	MICROJANSKY	µJy	10-6
MILLIJANSKY	MILLIJANSKY	mJy	0.001
CENTIJANSKY	CENTIJANSKY	cJy	0.01
DECIJANSKY	DECIJANSKY	dJy	0.1
JANSKY	JANSKY	Jy	1.0
DECAJANSKY	DECAJANSKY	daJy	10.0
HECTOJANSKY	HECTOJANSKY	hJy	100.0
KILOJANSKY	KILOJANSKY	kJy	1,000.0
MEGAJANSKY	MEGAJANSKY	MJy	106
GIGAJANSKY	GIGAJANSKY	GJy	109
TERAJANSKY	TERAJANSKY	TJy	1012
PETAJANSKY	PETAJANSKY	PJy	1015
ETAJANSKY	ETAJANSKY	EJy	1018
ZETTAJANSKY	ZETTAJANSKY	ZJy	1021
YOTTAJANSKY	YOTTAJANSKY	YJy	1024

¹The names in this column may be sent to fromString(String). Note that the names are not case sensitive.
²The symbols in this column may be sent to fromString(String). Note that the symbols are case sensitive.

Table of Conversion Factors³

	yJy	zJy	aJy	fJy	pJy	nJy	µJy	mJy	cJy	dJy	Jy	daJy	hJy	kJy	MJy	GJy	TJy	PJy	EJy	ZJy	YJy
YOCTOJANSKY	1	0.001	0.000001	1E-9	1E-12	1E-15	1E-18	1E-21	1E-22	1E-23	1E-24	1E-25	1E-26	1E-27	1E-30	1E-33	1E-36	1E-39	1E-42	1E-45	1E-48
ZEPTOJANSKY	1E+3	1	0.001	0.000001	1E-9	1E-12	1E-15	1E-18	1E-19	1E-20	1E-21	1E-22	1E-23	1E-24	1E-27	1E-30	1E-33	1E-36	1E-39	1E-42	1E-45
ATTOJANSKY	1E+6	1E+3	1	0.001	0.000001	1E-9	1E-12	1E-15	1E-16	1E-17	1E-18	1E-19	1E-20	1E-21	1E-24	1E-27	1E-30	1E-33	1E-36	1E-39	1E-42
FEMTOJANSKY	1E+9	1E+6	1E+3	1	0.001	0.000001	1E-9	1E-12	1E-13	1E-14	1E-15	1E-16	1E-17	1E-18	1E-21	1E-24	1E-27	1E-30	1E-33	1E-36	1E-39
PICOJANSKY	1E+12	1E+9	1E+6	1E+3	1	0.001	0.000001	1E-9	1E-10	1E-11	1E-12	1E-13	1E-14	1E-15	1E-18	1E-21	1E-24	1E-27	1E-30	1E-33	1E-36
NANOJANSKY	1E+15	1E+12	1E+9	1E+6	1E+3	1	0.001	0.000001	1E-7	1E-8	1E-9	1E-10	1E-11	1E-12	1E-15	1E-18	1E-21	1E-24	1E-27	1E-30	1E-33
MICROJANSKY	1E+18	1E+15	1E+12	1E+9	1E+6	1E+3	1	0.001	0.0001	0.00001	0.000001	1E-7	1E-8	1E-9	1E-12	1E-15	1E-18	1E-21	1E-24	1E-27	1E-30
MILLIJANSKY	1E+21	1E+18	1E+15	1E+12	1E+9	1E+6	1E+3	1	0.1	0.01	0.001	0.0001	0.00001	0.000001	1E-9	1E-12	1E-15	1E-18	1E-21	1E-24	1E-27
CENTIJANSKY	1E+22	1E+19	1E+16	1E+13	1E+10	1E+7	1E+4	1E+1	1	0.1	0.01	0.001	0.0001	0.00001	1E-8	1E-11	1E-14	1E-17	1E-20	1E-23	1E-26
DECIJANSKY	1E+23	1E+20	1E+17	1E+14	1E+11	1E+8	1E+5	1E+2	1E+1	1	0.1	0.01	0.001	0.0001	1E-7	1E-10	1E-13	1E-16	1E-19	1E-22	1E-25
JANSKY	1E+24	1E+21	1E+18	1E+15	1E+12	1E+9	1E+6	1E+3	1E+2	1E+1	1	0.1	0.01	0.001	0.000001	1E-9	1E-12	1E-15	1E-18	1E-21	1E-24
DECAJANSKY	1E+25	1E+22	1E+19	1E+16	1E+13	1E+10	1E+7	1E+4	1E+3	1E+2	1E+1	1	0.1	0.01	0.00001	1E-8	1E-11	1E-14	1E-17	1E-20	1E-23
HECTOJANSKY	1E+26	1E+23	1E+20	1E+17	1E+14	1E+11	1E+8	1E+5	1E+4	1E+3	1E+2	1E+1	1	0.1	0.0001	1E-7	1E-10	1E-13	1E-16	1E-19	1E-22
KILOJANSKY	1E+27	1E+24	1E+21	1E+18	1E+15	1E+12	1E+9	1E+6	1E+5	1E+4	1E+3	1E+2	1E+1	1	0.001	0.000001	1E-9	1E-12	1E-15	1E-18	1E-21
MEGAJANSKY	1E+30	1E+27	1E+24	1E+21	1E+18	1E+15	1E+12	1E+9	1E+8	1E+7	1E+6	1E+5	1E+4	1E+3	1	0.001	0.000001	1E-9	1E-12	1E-15	1E-18
GIGAJANSKY	1E+33	1E+30	1E+27	1E+24	1E+21	1E+18	1E+15	1E+12	1E+11	1E+10	1E+9	1E+8	1E+7	1E+6	1E+3	1	0.001	0.000001	1E-9	1E-12	1E-15
TERAJANSKY	1E+36	1E+33	1E+30	1E+27	1E+24	1E+21	1E+18	1E+15	1E+14	1E+13	1E+12	1E+11	1E+10	1E+9	1E+6	1E+3	1	0.001	0.000001	1E-9	1E-12
PETAJANSKY	1E+39	1E+36	1E+33	1E+30	1E+27	1E+24	1E+21	1E+18	1E+17	1E+16	1E+15	1E+14	1E+13	1E+12	1E+9	1E+6	1E+3	1	0.001	0.000001	1E-9
ETAJANSKY	1E+42	1E+39	1E+36	1E+33	1E+30	1E+27	1E+24	1E+21	1E+20	1E+19	1E+18	1E+17	1E+16	1E+15	1E+12	1E+9	1E+6	1E+3	1	0.001	0.000001
ZETTAJANSKY	1E+45	1E+42	1E+39	1E+36	1E+33	1E+30	1E+27	1E+24	1E+23	1E+22	1E+21	1E+20	1E+19	1E+18	1E+15	1E+12	1E+9	1E+6	1E+3	1	0.001
YOTTAJANSKY	1E+48	1E+45	1E+42	1E+39	1E+36	1E+33	1E+30	1E+27	1E+26	1E+25	1E+24	1E+23	1E+22	1E+21	1E+18	1E+15	1E+12	1E+9	1E+6	1E+3	1

³This table was generated from the conversion logic of this class. Note the few cells were conversion is not perfect, even though we are using the BigDecimal class. (Prior to use BigDecimal even more cells were off.)

Version Info:

$Revision: 1586 $

$Date: 2008-10-01 10:38:49 -0600 (Wed, 01 Oct 2008) $

$Author: dharland $

Since:

2006-05-16

Author:

David M. Harland

Enum Constant Summary

ATTOJANSKY
10^-18 janskies.

CENTIJANSKY
0.01 janskies.

DECAJANSKY
10 janskies.

DECIJANSKY
0.1 janskies.

ETAJANSKY
10¹⁸ janskies.

FEMTOJANSKY
10^-15 janskies.

GIGAJANSKY
10⁹ janskies.

HECTOJANSKY
100 janskies.

JANSKY
A unit of flux equal to 10^-26 watts per square-meter per hertz.

KILOJANSKY
1,000 janskies.

MEGAJANSKY
10⁶ janskies.

MICROJANSKY
10^-6 janskies.

MILLIJANSKY
0.001 janskies.

NANOJANSKY
10^-9 janskies.

PETAJANSKY
10¹⁵ janskies.

PICOJANSKY
10^-12 janskies.

TERAJANSKY
10¹² janskies.

YOCTOJANSKY
10^-24 janskies.

YOTTAJANSKY
10²⁴ janskies.

ZEPTOJANSKY
10^-21 janskies.

ZETTAJANSKY
10²¹ janskies.

Method Summary

static FluxDensityUnits	fromString(String text) Returns the flux density units represented by text.
static FluxDensityUnits	getDefault() Returns a default unit of flux density.
static FluxDensityUnits	getForMultipleOfThreePower(int powerOfTen) Similar to getForPower(int), but the returned units will have a power that is evenly divisible by three.
static FluxDensityUnits	getForPower(int powerOfTen) Returns the units that corresponds to 1.0 * 10powerOfTen Hz.
static FluxDensityUnits	getLargest() Returns the element that represents the largest number of Janskies.
static FluxDensityUnits	getSmallest() Returns the element that represents the smallest number of Janskies.
String	getSymbol() Returns the symbol for this unit.
boolean	symbolsAreCaseSensitive() Returns true -- these symbols are case sensitive.
BigDecimal	toJanskies() Returns the number of janskies for this unit.
String	toString() Returns a text representation of this enumeration constant.
BigDecimal	toUnits(FluxDensityUnits otherUnits) Returns a factor for converting from this unit to otherUnits.
static FluxDensityUnits	valueOf(String name) Returns the enum constant of this type with the specified name.
static FluxDensityUnits[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

YOCTOJANSKY

public static final FluxDensityUnits YOCTOJANSKY

10^-24 janskies.

ZEPTOJANSKY

public static final FluxDensityUnits ZEPTOJANSKY

10^-21 janskies.

ATTOJANSKY

public static final FluxDensityUnits ATTOJANSKY

10^-18 janskies.

FEMTOJANSKY

public static final FluxDensityUnits FEMTOJANSKY

10^-15 janskies.

PICOJANSKY

public static final FluxDensityUnits PICOJANSKY

10^-12 janskies.

NANOJANSKY

public static final FluxDensityUnits NANOJANSKY

10^-9 janskies.

MICROJANSKY

public static final FluxDensityUnits MICROJANSKY

10^-6 janskies.

MILLIJANSKY

public static final FluxDensityUnits MILLIJANSKY

0.001 janskies.

CENTIJANSKY

public static final FluxDensityUnits CENTIJANSKY

0.01 janskies.

DECIJANSKY

public static final FluxDensityUnits DECIJANSKY

0.1 janskies.

JANSKY

public static final FluxDensityUnits JANSKY

A unit of flux equal to 10^-26 watts per square-meter per hertz. References: UNC and Wikipedia.

DECAJANSKY

public static final FluxDensityUnits DECAJANSKY

10 janskies.

HECTOJANSKY

public static final FluxDensityUnits HECTOJANSKY

100 janskies.

KILOJANSKY

public static final FluxDensityUnits KILOJANSKY

1,000 janskies.

MEGAJANSKY

public static final FluxDensityUnits MEGAJANSKY

10⁶ janskies.

GIGAJANSKY

public static final FluxDensityUnits GIGAJANSKY

10⁹ janskies.

TERAJANSKY

public static final FluxDensityUnits TERAJANSKY

10¹² janskies.

PETAJANSKY

public static final FluxDensityUnits PETAJANSKY

10¹⁵ janskies.

ETAJANSKY

public static final FluxDensityUnits ETAJANSKY

10¹⁸ janskies.

ZETTAJANSKY

public static final FluxDensityUnits ZETTAJANSKY

10²¹ janskies.

YOTTAJANSKY

public static final FluxDensityUnits YOTTAJANSKY

10²⁴ janskies.

Method Detail

values

public static FluxDensityUnits[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (FluxDensityUnits c : FluxDensityUnits.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static FluxDensityUnits valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

symbolsAreCaseSensitive

public boolean symbolsAreCaseSensitive()

Returns true -- these symbols are case sensitive.

Specified by:

symbolsAreCaseSensitive in interface Symbolic

Returns:

true if the case of the symbols carry meaning.

getSymbol

public String getSymbol()

Returns the symbol for this unit. For example, the symbol for jansky is Jy.

Specified by:

getSymbol in interface Symbolic

Returns:

the symbol for this unit.

toJanskies

public BigDecimal toJanskies()

Returns the number of janskies for this unit.

Returns:

the number of janskies in this unit.

toUnits

public BigDecimal toUnits(FluxDensityUnits otherUnits)

Returns a factor for converting from this unit to otherUnits.

Parameters:

otherUnits - the unit to which conversion is desired.

Returns:

a factor for converting from this unit to otherUnits.

getDefault

public static FluxDensityUnits getDefault()

Returns a default unit of flux density.

Returns:

a default unit of flux density.

getLargest

public static FluxDensityUnits getLargest()

Returns the element that represents the largest number of Janskies.

Returns:

the element that represents the largest number of Janskies.

getSmallest

public static FluxDensityUnits getSmallest()

Returns the element that represents the smallest number of Janskies.

Returns:

the element that represents the smallest number of Janskies.

getForPower

public static FluxDensityUnits getForPower(int powerOfTen)

Returns the units that corresponds to 1.0 * 10^powerOfTen Hz.

If there is no units with the exact powerOfTen Jy, the largest units whose power is less than powerOfTen will be returned. If powerOfTen is less than that of the smallest units, the smallest units will be returned.

Returns:

the units that corresponds to 1.0 * 10^powerOfTen Jy.

getForMultipleOfThreePower

public static FluxDensityUnits getForMultipleOfThreePower(int powerOfTen)

Similar to getForPower(int), but the returned units will have a power that is evenly divisible by three.

toString

public String toString()

Returns a text representation of this enumeration constant.

Overrides:

toString in class Enum<FluxDensityUnits>

Returns:

a text representation of this enumeration constant.

fromString

public static FluxDensityUnits fromString(String text)

Returns the flux density units represented by text.

Leading and trailing whitespace is first stripped from text. A case-insensitive comparison against the name and toString methods of each constant in the enumeration is then performed, while a case-sensitive comparison is done againt the getSymbol method. If no match is found, null is returned. The comparison of the symbol needs to be case-sensitive because of units such as millijansky (mJy) and megajansky (MJy).

Parameters:

text - a text representation of a unit of flux density.

Returns:

the flux density units represented by text.