Latency is mainly a factor for the products
generated systematically (i.e. the medium
resolution products and the wave mode products).
Two categories of product distribution services
are provided by the PDS:
Near real time (NRT) services
NRT services are typically three
hours from sensing for data used in
forecasting or tactical operations
(global and regional
products produced and distributed
systematically). For applications
requiring high resolution images
(agriculture, forestry, soil
moisture, etc.) NRT products are
typically available one to three
days from sensing.
Off-line service (OFL) is typically
available from a few days to weeks
from data take. Off-line products
benefit from superior data
on calibration, auxiliary data, and
precise orbit data.