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| Anomalous scan pattern |
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An anomalous scan pattern that was detected in the period 3-11 April 2007, this pattern consists of:
- 22 sweeps per scans
- tangent heights raning from 101 to 37 Km, at 6 Km steps
- each tangent altitude scanned twice
The altitudes of these measurements as a function of ANX are presented in the figure below.
The investigation shows that the CTI tables were not correctly up linked to the platform due to a planned unavailability.
As a result the instrument starts the measurement without all the correct CTI tables even though the planning was correctly prepared.
All the MIPAS measurements taken during 3 – 11 April 2007 have this anomalous scan pattern and the L2 processing of these data will be strongly affected.