In optimizing mode ``SCANS'', skip each source OPSKIP times after it is last seen, unless it is in the OPELPRIO elevation range. This parameter is not applied to pointing (and Ta and PN3DB) observations when they are mixed with other types of scheduling. It is always applied when OBSTYPE is NONE or PTVLBA.
Note that the optimizing modes are somewhat experimental, especially this one! If they are used, the output schedule should be checked carefully.