Calibration and Data Reduction Techniques for the AFGL (Air Force Geophysics Laboratory) Astronomical Infrared Array Spectrometer

Abstract

Data reduction techniques have been implemented recently to obtain infrared spectra of astronomical objects from raw data obtained with the mosaic detector array and prism slit spectrometer used for groundbased telescope astronomical observations. The techniques for flat fielding a slit spectrometer cannot follow exactly those used for an imaging camera, but a limited flat fielding approach can be used in conjunction with measurements of known calibration sources to calibrate the entire array. The end product described here allows a pipeline application of computer software to raw data frames that results in astronomical spectra independent of atmospheric and instrumental attenuation. Keywords: Infrared spectroscopy, Celestial sources, Reprints.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 29, 1988
Accession Number
ADA199141

Entities

People

  • Gregory Sloan
  • Paul D. Levan

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Masses
  • Arrays
  • Calibration
  • Data Reduction
  • Detectors
  • Diffraction
  • Digital Data
  • Identification
  • Infrared Stars
  • Measurement
  • Misalignment
  • Observation
  • Spectra
  • Spectrometers
  • Standards
  • Star Position
  • Telescopes

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Geodesy

Technology Areas

  • Space
  • Space - Space Objects