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[ASTRO\]LINE Name Frequency Band [Lock [Center [Harm]]]
[/MOLECULES File] [/SPECTRAL Unit Bandwidth LO3]
Plot rest frequency coverage of Plateau de Bure Interferometer.
The command syntax is identical to that of the corresponding command in
Name is a line name to label the plot
Frequency is the center frequency in GHz
Band should be USB or LSB
Lock (optional) is LOW or HIGH
Center (optional), the center IF2 frequency in MHz, default 350.
Harm (optional), the harmonic number.
The option /MOLECULES enables to plot the rest frequencies of
several transitions, found in file File. This is a text file with
where Freq is the rest frequency in GHz and 'chain' the line name to be
plotted by GreG, between single quotes. Example:
The option /SPECTRAL is used to specify the desired spectral
- Unit is the unit number (1 to 6)
- Bandwidth is the bandwidth in MHz (20, 40, 80 or 160)
- LO3 is the center frequency (in MHz) of the band center,
[ASTRO\]LINE/SPECTRAL Unit Bandwidth LO3
Will overlay the specified correlator on a LINE plot
Because only one synthesizer is used to generate the 1st and 2nd
LOs, the IF frequency is slightly variable (between 1.500 and 1.550
GHz), and the Doppler tracking is correct only for the specified band
(USB or LSB). The last specified source is used to get the Doppler
shift. The image frequency doppler shift is wrong by at most
0.11 km/s for a two month experiment.