Hardware#

EIS pointing and alignment issues#

• Obtaining pointing information from EIS data

• How big is EIS's field of view?

• EIS Post-Launch FOV

• 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

Slits & Slots#

• Slit “Focus”

• Grating focus

• The tilt of the EIS slit

• 2" EIS Slit

• Diagnostics with the slot

CCDs#

• Hot pixels

• Warm Pixels

• Removing cosmic rays

• Top and bottom of hot/warm pixels maps

• How do hot and warm pixels affect line fitting?

Spatial Resolution#

• Estimating spatial resolution using observed features

JPEG Compression and EIS Spectral Line Profiles#

• The Impact of JPEG Compression on EIS Spectral Data

Wavelength Scale#

• Orbital drift of the EIS wavelength scale

Artifacts of EIS velocity maps#

• Spatial offset of velocity and intensity features