EIS Data Processing and Analysis
#

Getting started#

• EIS data analysis tutorial (Paris meeting, Nov 2007)

• EIS Tips (en) @ National Astronomical Observatory of Japan (NAOJ)

• EIS Tutorials @ Naval Research Laboratory (NRL)

• EIS Data Analysis Guide @ Mullard Space Science Laboratory (MSSL)

Software#

• Data analysis routines

• Fitting EIS lines with eis_moment

• A Wrapper to the EIS Objects (eis_getwindata)

EIS_PREP#

• How do I call eis_prep?

• What does eis_prep do?

• Evaluation of errors in eis_prep

EIS pointing and alignment issues#

• Offset between CCDs in the y direction

• Offset between CCDs in the x direction

• EIS pointing stability

• Pointing Information in EIS fits files

• Inter-instrument offsets for Hinode

• EIS internal coalignment?

• Grating tilt (spectrum rotation) and effect on line ratios

• Co-alignment of EIS to magnetograms

Slit tilts#

• The tilt of the EIS slit

• 2" EIS Slit

CCD features#

• Hot pixels

• Warm Pixels

• Removing cosmic rays

• Top and bottom of hot/warm pixels maps

Gaussian fitting#

For automatically fitting a Gaussian to an emission line over an entire raster and analysing the results, the following routines are available:

• eis_auto_fit.pro

• Viewing the fits - eis_fit_viewer

• Correcting fits for slit tilt

• Correcting fits for orbital variation

If you want to average a spatial region and fit multiple lines in the spectrum, then the following tutorials describe available software:

• Tutorial for spatially-averaging spectra

• Tutorial for spec_gauss_widget

EIS Spatial Resolution#

• Estimating spatial resolution using observed features

JPEG Compression and EIS Spectral Line Profiles#

• The Impact of JPEG Compression on EIS Spectral Data

FITS files issues#

• Big EIS fits files

• EIS exposure times; getexp() method

• Missing data/files

Miscellaneous#

• What's the "orbital variation of line position" about?

• EIS_CAT and the EIS Science Data Catalog

• Where was EIS observing?

• The Complete List of EIS Studies

• What is EIS's Instrumental Line Width?

• How big is EIS's field of view?