We have just found that the section of the .sksum file generated by SKED that gives source positions in the format we want for feeding to the correlator system ignores signs.  So all sources below the celestial equator have the wrong sign of declination.  I also just now discovered that it is using B1950 coordinates.

It looks like we only use entries in this table for sources that are not in our catalog, such as new sources for which positions have been requested by outside users.  There were 3 such sources in rdv57 and they clearly are going to have to be reobserved.

By rdv59, this issue should be fixed - the geodetic group now knows about it.  But for rdv58 it will be an issue.  Do not use the positions from the .sksum file.  Get them from the .skd file.

I believe that this only affects the RDV observations, although if you get anything else scheduled with SKED rather than SCHED, watch for it.
I see that this section with source positions formatted as we want them is new with rdv57, so the bug was just introduced.

Cheers,

Craig