NICER Calibration Files

This page contains a summary of the NICER Calibration files which are currently in the Calibration Database (CALDB). The table links to the latest CALDB tar file and users can download it to install the NICER CALDB locally.
Instructions for installing the CALDB for NICER or other missions are available from the CALDB Installation page. The easiest way to access calibration data for NICER or other HEASARC-supported missions is via remote access, which allows direct access the current HEASARC NICER CALDB without having to install any calibration data locally.

Caldb access for NICER requires the latest version of the caldb.config file (updated 20170705 or later) which is available at Please replace your current $CALDBCONFIG file with this updated version.

NICER Calibration

Latest CALDB XTI(20180226)
Release Date

NICER caldb documents

Retrive NICER XTI caldb tar file