Continuous Reception of GOES GVAR Data

What is Continuous Reception?

Geostationary satellites broadcast images according to a fixed schedule. In the case of the GMS and the Meteosat, TeraScan can be programmed to receive and process a select set of images from those being broadcast. This is a matter of using the TeraCapCon application to make the selections.

In the case of the GOES, however, a routine called continuous reception is more commonly used rather than the image-by-image selective scheduling used for GMS and Meteosat. With continuous reception, all images broadcast from GOES are pulled in and decoded by the TeraScan system.

The reason for using continuous reception is that the GOES broadcast schedule can change. A routine schedule runs most of the time, but NOAA, the controlling agency for the GOES satellites, may implement other schedules seasonally or as warranted by urgent weather conditions. If selective reception were scheduled in TeraScan, the reception schedule would have to be changed each time the GOES broadcast schedule changed in order to keep reception synchronized with the broadcast schedule.

To set up continuous reception of GOES GVAR data:

1.	Launch the TeraScan Configuration Editor.
2.	From the Configuration Editor, select the GVAR Telemetry tab.
3.	On the GVAR Telemetry tab, select Continuous as the Scheduler Type.
4.	In the Scheduler Satellite field, type in the name of the satellite that will be the source of data for your system (either GOES-8 or GOES-10).
5.	Specify the type of processing that you want linked to GVAR reception. Linked scripts will be activated automatically as data is received.
		If your system will be using TeraPGS for automatic data processing of GOES Imager data: enter pgs_ingest_wait as the Initial Process, enter pgs_ingest as the Normal Process, and leave Extra Process blank.
		-Or-
		If your system will be running the standard gvar_pproc script to process GOES Imager data, enter gvar_pproc_wait as the Initial Process, enter gvar_pproc as the Normal Process.
		And if your system will be processing Sounder data, enter gvar_sounder_proc as the Extra Process.