iG5 User Manual
54
In many areas a single offline CORS station without data will
make OPUS-RS impossible.
#4 Daily vs. Hourly CORS Availability
If you click a CORS station pin on the NGS CORS map, you will
get a station summary which includes an ‘Availability’ note.
There are two availably types:
Daily
Hourly
Daily means that a full day’s CORS station data is collected
and then sometime after midnight UTC the data is archived
and becomes available for use as CORS data. Collection is
ONCE PER DAY.
Hourly means that the previous hour’s data is collected
and
available immediately after the top of each hour. Collection is
EVERY HOUR.
Hourly data is much more desirable.
For the two sites above:
P113 data is typically available at 09:03 am (UTC)
on the following day.
PUC2 data is typically available 35 minutes after
the top of each hour.
