https://heasarc.gsfc.nasa.gov/docs/nicer/analysis_threads/nicerl2/index.html
NICER Data Analysis Threads - Standard Pipeline Processing of an Observation with "nicerl2"
The Neutron star Interior Composition Explorer Mission
data analysis threads
https://heasarc.gsfc.nasa.gov/docs/nicer/analysis_threads/filter-files/
NICER Data Analysis Threads - Managing NICER Filter Files
The Neutron star Interior Composition Explorer Mission
data analysis threadsnicermanagingfilterfiles