[evlatests] More Missing Scans

[Ken Sowinski]

On Wed, 9 Mar 2011, Bryan Butler wrote:
>
> but XLo->XHi doesn't involve a reconfiguration, so that wouldn't explain
> anything missing in XHi...
>
> i'm assuming the first L-band scan had valid data?  if not, the array
> could have still been slewing to source...

If antennas were slewing there would be incoherent data rather
than no data at all.  I understood Rick to say that data were
not present rather than bad.