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 -ƒË/ƒË0)c
        • ƒË: observed frequency
        ƒË0 : rest frequency
         c : light speed
  • Optical : Vopt = (ƒÉ/ƒÉ0 - 1)c = cz
        • ƒÉ: observed wavelength
        ă0 : rest wavelength
         1+z =ƒÉ/ƒÉ0



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.

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