Progress Docking Time Moved Up

This is very puzzling -- what more can we learn about this last-minute
change of plans?

"rk" wrote in message
...
Just heard on NASA TV that the docking time will be about 6:30 pm EST --
moved
up about 1/2 of an hour.

--
rk, Just an OldEngineer
"Engineers abhor extrapolation"
-- Ken Iliff, from _Runway to Orbit_, 2004

Very nice description -- it tallies very well with this
'official use only' status report for today, that I just
got a hold of.

Progress 16P (#351) docked successfully last night at 6:58pm EST at the
Service Module (SM) aft port. The docking in automated mode went flawlessly
after last moment rescheduling of the event by TsUP/Moscow, delaying the
linkup from the planned 6:31pm by 27 minutes. [After the entire process of
fully automated rendezvous and approach had proceeded without issues,
Russian Flight Control postponed the actual docking until ISS was in
sunlight over Russian ground sites, because of a temporary inability of US
segment (USOS) assets to downlink the Progress Klest TV picture for relay to
Moscow. The video downlink was successfully acquired just prior to the
actual docking activities initiation. All Progress systems operated
perfectly during all phases of flight, rendezvous, and docking.]