stella.jview
Class SesFits

java.lang.Object
  nom.tam.fits.Fits
      astro.SpectralFits
          stella.jview.SesFits

public class SesFits
extends SpectralFits

This class deals with FITS file received as output from the SES spectrograph. This is a three dimensional fits file, where the x-coordinate (first axis) is along the echell order, 2043 pixel, the second axis is the order number, 82, and the third one indicates the image. In index zero, the reduced spectrum is found, in index 1 the raw extracted spectrum and in index 2 a sigma map of the pixel. The data typoe is float.

Nested Class Summary

private static class	SesFits.Dispersion The functions used in a single order, parsed from s tring buffer.
static class	SesFits.Order We read from the given fits file the stated echell order and echo that to sysout.
static class	SesFits.Wavelength This class represents a soultion to an aperture.

Field Summary

private Integer[]	lookup The lookup table from with the orders (index to order).
private static String	SPEC Header keyword for apertures.
private static String	WAT Header keyword for apertures.

Constructor Summary

SesFits(File io)
Constructs a SesFits from a file.

Method Summary

private static String	checkFormat(String def)
int	getHighestOrder() Returns the array size, -1 if undefined.
int	getIndexOfOrder(int order) Default implementation says aperture number equlas order number.
int	getLowestOrder() Default implementaion return 0 for lowest order number, -1 if undefined.
int	getOrderOfIndex(int order) Default implementation says aperture number equlas order number.
protected Function[]	parseWavelengthSolution(nom.tam.fits.Header h) Parses the wavelength soultion from the header.

Methods inherited from class astro.SpectralFits

getCentralOrderFromAngstrom, getOrdersFromAngstrom, getRawOrder, getReducedOrder

Methods inherited from class nom.tam.fits.Fits

addHDU, currentSize, deleteHDU, fileInit, getHDU, getNumberOfHDUs, getStream, insertHDU, makeHDU, makeHDU, makeHDU, randomInit, read, read, readHDU, setChecksum, setChecksum, setStream, size, skipHDU, skipHDU, streamInit, streamInit, streamInit, version, write

Methods inherited from class java.lang.Object

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

Field Detail

WAT

private static final String WAT

Header keyword for apertures.

See Also:

Constant Field Values

SPEC

private static final String SPEC

Header keyword for apertures.

See Also:

Constant Field Values

lookup

private Integer[] lookup

The lookup table from with the orders (index to order).

Constructor Detail

SesFits

public SesFits(File io)
        throws nom.tam.fits.FitsException

Constructs a SesFits from a file. Note this throws FitsException if file was not found or data could not be read due to I/O

Throws:

nom.tam.fits.FitsException

Method Detail

getIndexOfOrder

public int getIndexOfOrder(int order)

Default implementation says aperture number equlas order number.

Overrides:

getIndexOfOrder in class SpectralFits

getOrderOfIndex

public int getOrderOfIndex(int order)

Default implementation says aperture number equlas order number.

Overrides:

getOrderOfIndex in class SpectralFits

getLowestOrder

public int getLowestOrder()

Default implementaion return 0 for lowest order number, -1 if undefined.

Overrides:

getLowestOrder in class SpectralFits

getHighestOrder

public int getHighestOrder()

Returns the array size, -1 if undefined.

Overrides:

getHighestOrder in class SpectralFits

parseWavelengthSolution

protected Function[] parseWavelengthSolution(nom.tam.fits.Header h)

Parses the wavelength soultion from the header.

Specified by:

parseWavelengthSolution in class SpectralFits

checkFormat

private static String checkFormat(String def)