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GAIA DATA RELEASE DOCUMENTATION
Gaia Data Release 2 Documentation release 1.2
  • Gaia Data Release 2 Documentation release 1.2
    • I Introduction to Gaia DR2
    • II Gaia data processing
      • 2 Astrometric and photometric pre-processing
      • 3 Astrometry
      • 4 Solar-System Objects
      • 5 Photometry
      • 6 Spectroscopy
        • 6.1 Introduction
        • 6.2 Properties of the input data
        • 6.3 Calibration models
        • 6.4 Processing steps
          • 6.4.1 Ingestion
          • 6.4.2 Calibration preparation
          • 6.4.3 Calibration and trending
          • 6.4.4 Full extraction
          • 6.4.5 Combine template
          • 6.4.6 STAMTA
          • 6.4.7 Single-transit analysis
          • 6.4.8 Multi-transit analysis
        • 6.5 Quality assessment and validation
    • III Gaia data analysis
    • IV Gaia catalogue
    • V Gaia archive
    • Miscellaneous
    • Bibliography
6.4 Processing steps6.4.5 Combine template6.4.7 Single-transit analysis

6.4.6 STAMTA

The single-transit analysis (STA) and multi-transit analysis (MTA) modules are integrated in the same workflow, named STAMTA in Figure 6.2. First, STA processes the data per transit to obtain the single-transit spectroscopic radial velocities. Then, MTA combines the single-transit radial velocities to produce the radial velocity of the star, Vrad, published in Gaia DR2.

6.4.5 Combine template Bibliography  6.4.7 Single-transit analysis
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