The NExScI provides observation planning, data infrastructure, and
data calibration applications for KI. This web page contains links to
help you write and submit a KI proposal and access, reduce and
calibrate KI data. For assistance, contact your assigned contact
scientist or visit the the
Once your proposal has been accepted, you will need to prepare a schedule file. All observations with the Keck Interferometer are executed as service observing.
The raw data are reduced to averaged visibilities (Level 1) by the NExScI and these data are available through a web interface, subject to data proprietary constraints.
The data analysis is covered in two stages: from raw data to visibilities is called data reduction and correcting those visibilities for the system visibility is called data calibration.
The data reduction step is run automatically by the NExScI. If you would like the reduction run with different settings, please contact your contact scientist.
The NExScI welcomes visits by KI observers who wish to receive in-person tutorials on how to make use of our observing planning and data analysis software tools. To initiate a request to come visit the NExScI, please send email to your contact scientist or visit the the help desk page.