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Open-use_program/aobs

3. Parameters of "Source Table"†

3.1 (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 *1.
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)†

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†

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