Remote sensing of NO
2
1.3.2.2.4 SCIAMACHY operating phases STEP-BY-STEP
ENVISAT orbit
Solar occultation start
Solar occultation end
Reference spectrum
Nadir scan
Limb scan start
Limb scan end
Nadir scan
Overlapping limb and nadir scans
Lunar occultation start
Lunar occultation end
Nightside phase
Nadir/limb mode matching
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