The precise reduction of Baker-Nunn films at the Smithsonian Astrophysical Observatory.
Computer programs to reduce Baker-Nunn films and maintain time records
Haefner, R. R.↗
Engineering topics
Haefner, R. R.
Publications and source records attributed to Haefner, R. R..
The simultaneous observation program of the Smithsonian Astrophysical Observatory.
Smithsonian Astrophysical Observatory satellite observation program, discussing mathematical procedures to transform reduced data in celestial frame to fixed earth plane
Haefner, R. R.↗