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Open-use_program/aobs

3. Parameters of "Source Table"†

3.1 (RA,DEC) (L,B)†

Fig 3.1 Source Table Window for (RA,DEC)(L,B)

• File Name: Name of "Source Table" to save.
• Source Name: Name of a source which you observe.
• Coordinate of Source Position:
• RA/L: Right ascension (RA) or galactic longitude (L).
• DEC/B: Declination (DEC) or galactic latitude (B).
• System: Coordinate system (RA,DEC) or (L,B).
• Epoch: Epoch of the coordinate (B1950 or J2000).
• Velocity: Radial velocity of the source.
• Frame: Frame of the velocity (LSR or Heliocentric).
• Definition: Definition of the velocity (Radio or Optical).
  • Radio : Vradio = (1 -ν/ν0)c

    ν: observed frequency
    ν0 : rest frequency
     c : light speed

  • Optical : Vopt = (λ/λ0 - 1)c = cz

    λ: observed wavelength
    λ0 : rest wavelength
    1+z =λ/λ0

3.2 (Az,El)†

Fig 3.2 Source Table Window for (Az, El)

• File Name: Name of "Source Table" to save.
  
• Source Name: Name of a source which you observe.
  
• Coordinate:
  
• Azimuth: Azimuthal angle is measured from the north (0 deg) toward the east. -180 deg < AZ < +360 deg.
  
• Elevation: Elevation angle is measured from the horizon (0 deg) toward the zenith (90 deg). 4 deg < El < 90 deg.
  

3.3 Solar object†

Fig 3.3 Source Table Window for solar object

• File Name: Name of "Source Table" to save.
  
• Source: Select an object.