An AATSR product is generally considered to
represent one whole orbit, and one instance of
each product type (TOA, NR, AR
etc.) is generated per orbit. Under normal
circumstances, data will not be processed in
small segments. Processing will take place on
whole orbits, and segments of processed data
can then be extracted from the archived orbit product.
AATSR products will be processed straight through
from L0 to L2 during NRT product generation, but
processing will be split between L1B and L2
for off-line products. In this case, processing
from L0 to L1B will take place at the LRAC. This L1B data will then
be passed on to the UK-PAC for onward
processing to L2.