Anomalous scan pattern

The anomaly consisted in a wrong scan pattern used during 6 – 8 August 2006. The problem was most likely due to the usage of an incomplete set of CTI, in particular the commanded altitude spacing and number of sweeps was the one of NOM, while the starting altitude was the one of UTLS-1. As a result the last 10 sweeps measured during these days have altitude below Earth surface (see figure below) and cannot be used for atmospheric studies.

The altitudes of these measurements as a function of ANX are presented in the figure below.





All the MIPAS measurements taken during this period have this anomalous scan pattern and the L2 processing of these data will be strongly affected.