IRAS Explanatory Supplement
XI. Known Processing Anomalies

Chapter Contents | Authors | References
Table of Contents | Index | Previous Chapter | Next Chapter

Chapter XI Contents

  1. Processing of Extended ("Cirrus") Sources as Point Sources
  2. Instability and Lag of the Noise Estimator
  3. Frequency Dependence of Responsivity with Amplitude
  4. Errors in Cross-Scan Uncertainties Related to Failed Detectors
  5. Photon-Induced Responsivity Enhancement
  6. Artifacts in the Digital Image Data Base
  7. Photometric Processing
  8. Insufficient Specification of HCON Coverage
  9. Position Uncertainties
  10. Overestimated Weak Fluxes
  11. Minor Problems

Introduction

In any undertaking of the magnitude of the IRAS data reduction, there are bound to be errors or software design deficiencies, which were either generic in the processing, discovered too late in the processing schedule to be fixed for all the observations or considered minor enough not to warrant fixing. In this chapter, all those errors which were recognized at the time of publication of the catalog (November 1984) are listed. It is realized that this list does not encompass all the actual errors in the catalog.

Authors

T. Chester, G. Neugebauer and C. Beichman

References

Chapter Contents | Authors | References
Table of Contents | Index | Previous Chapter | Next Chapter