Figure 2.10: Abscissa residuals for part of orbit 237. From top to bottom: results from the FAST, NDAC, and the new reductions. The residuals in the FAST
and NDAC solutions show clearly very similar systematic and correlated variations,
which may be the result of not having corrected for the scan-phase discontinuities
that exist for this orbit. The rotation phase is given in radians. The colours of
the dots indicate the formal errors assigned to the measurements, with red for the
largest errors and dark blue for the smallest.