EXTSPEC: Copy an Order of an Echelle Image to a Spectrum

Form: EXTSPEC dest source ORD=nord
dest
is the buffer which will hold the spectrum.
source
is the buffer containing the extracted echelle wavelength-calibrated image.
ORD=
is the number of the order to be transferred.

This command copies a given order from an extracted echelle wavelength-calibrated image (where the row number of the Vista image corresponds to the order number of the wavelength-calibrated spectrum in that row) to a buffer. The order number is selected with the keyword `ORD='.

Example:

EXTSPEC 10 1 ORD=87
Copy order 87 from a extracted echelle wavelength-calibrated image into buffer 10.