4 Raw Image Screening (RAW_SCREEN)

 

Certain operations performed by NEWSIPS may be categorized as screening or preprocessing operations which prepare the data for subsequent processing. The procedures of this nature which are performed on IUE data are described in this chapter.

 

• 4.1 Bright-Spot Detection
• 4.2 Microphonic Noise Detection
• 4.3 Partial-Read Image Preprocessing
• 4.4 Missing Minor Frame Detection
• 4.5 DMU Corrupted Pixel Detection
• 4.6 Source-Type Determination
• 4.7 Serendipitous Spectrum Recognition
• 4.8 Background and Continuum Intensity Estimation
• 4.9 High-Dispersion Order Registration (ORDERG)
  • 4.9.1 Order Registration Process
    • 4.9.1.1 Step 1: Global Shifts
    • 4.9.1.2 Step 2: Differential Shifts
  • 4.9.2 Potential Problem Areas
• 4.10 RAW_SCREEN Output