This page (revision-12) was last changed on 27-Nov-2017 16:52 by Peter Young

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At line 1 added 2 lines
[{ALLOW edit EISMainUsers}]
[{ALLOW view Anonymous}]
At line 6 changed 2 lines
IDL> eis_wave_corr, l1name, offset
IDL> eis_auto_fit, wd, fit, offset=offset
IDL> eis_auto_fit, wd, fit
At line 10 removed 4 lines
The first command is used to determine the wavelength offset at each spatial pixel due to the tilt of the EIS slit and orbit variation of emission line centroids. Correcting for these effects yields a much more accurate velocity map.
Alternatively, you may use ''eis_wave_corr_hk'' instead of ''eis_wave_corr'' to correct the orbital variation by using instrumental temperature. This method is suitable for active regions (details are described [here|HKmethod]).
At line 28 changed one line
This example shows the most simple use for eis_auto_fit. The routine can also be used to perform multiple Gaussian fits and a full description of the capabilities are given in two documents: '[Gaussian fitting for the Hinode/EIS mission|https://hyperion.nascom.nasa.gov/svn/eis/release/doc/fitting/eis_auto_fit.pdf]' and '[Gaussian fitting examples using eis_auto_fit|https://hyperion.nascom.nasa.gov/svn/eis/release/doc/fitting/eis_auto_fit_examples.pdf]'.
This example shows the most simple use for eis_auto_fit. The routine can also be used to perform multiple Gaussian fits and a full description of the capabilities are given in two documents: '[Gaussian fitting for the Hinode/EIS mission|ftp://sohoftp.nascom.nasa.gov/solarsoft/hinode/eis/doc/eis_notes/16_AUTO_FIT/eis_swnote_16.pdf]' and '[Gaussian fitting examples using eis_auto_fit|https://ftp://sohoftp.nascom.nasa.gov/solarsoft/hinode/eis/doc/eis_notes/17_AUTO_FIT_EXAMPLES/eis_swnote_17.pdf]'.
At line 33 changed one line
# The Gaussian line widths include a significant instrumental component of approximately 55 mA.
# When the line width array is extracted with eis_get_fitdata, it is automatically corrected for the instrumental line width. To keep the instrumental component, use the /keep_inst_width keyword. The thermal component of the line width can be removed by using the thermal_wid= optional input - see the routine header for details on how to use this keyword.
This page (revision-12) was last changed on 27-Nov-2017 16:52 by Peter YoungTop