Operational Interface Procedures for the South Pole TDRSS Relay ...

will use the FDF view periods from the web site to prepare the weekly (two week view period)
SPTR schedule. If there are changes to the view periods, FDF will e-mail a change alert to the
Forecast and Real-time Schedulers, noting the changes. Once prepared, the two-week SPTR
Schedule is transmitted by the NCC Forecast Scheduler to SPTR users via the e-mail SPTR
collective described in 5.3.3.1d each Monday. The Schedule shows the week’s schedule starting
on the upcoming Monday and the following week’s schedule.
NOTE
If less than 15 minutes is available on any given day for SPTR
services, SPTR will not be scheduled for that day.
6.1.3.4 SPTR Schedule Updates
If there are any changes to a released SPTR Schedule, due to support conflict, or TDRS
maneuvers, the NCC Real-time Scheduler will e-mail an entirely new two-week schedule with the
changed periods identified to the SPTR collective. Each update is consecutively numbered (e.g.,
12/97-1). There will only be one SPTR schedule in effect (one e-mail) that will identify SPTR
changes or cancellations as required.
NOTE
In the event of near-real-time conflicts causing loss of SPTR time,
the NCC will transmit a notification via the SPTR collective.
6.1.3.5 Routine SHO Transmission
The NCC schedules the daily SPTR contacts for the TDRS-1 SSAF/SSAR/KSAR services by
locally generating and transmitting the required SHO(s) to WSC, based on the latest SPTR
schedule, as part of the daily bulk schedule transmission.
6.1.3.6 SHO Execution
The WSC supports scheduled SPTR transmission times based upon the services and event start
and stop times as scheduled by the NCC.
a2302s6 6-2 532-OIP-NCC/SPTR