During its first year in operation the shortwave infrared (SWIR) Tropospheric Monitoring Instrument (TROPOMI) was calibrated in-flight and its performance was monitored. In this paper we present the results of the in-flight calibration and the ongoing instrument monitoring. This includes the determination of the background signals, noise performance, instrument spectral response function (ISRF) stability, and stray-light stability. From these results, the number of incurred dead and bad pixels due to cosmic-ray impacts is determined. The light-path transmission is checked by monitoring internal lamp and diffuser stabilities. Due to its high sensitivity to Earth radiation on the eclipse side, the calibration strategy for the background (i.e. dark current and offset) monitoring was adjusted. Trends over the first full year of nominal operations reveal a very stable SWIR module. The number of newly incurred dead and bad pixels is less than 0.1% over nearly a full year since the start of operations. Assuming linear degradation of various components, the SWIR module is expected to keep performing within expected parameters for the full operational lifetime.
In-flight calibration and monitoring of the Tropospheric Monitoring Instrument (TROPOMI) short-wave infrared (SWIR) module
2019-12-20
Van Kempen , T A , Van Hees , R M , Tol , P J J , Aben , I & Hoogeveen , R W M 2019 , ' In-flight calibration and monitoring of the Tropospheric Monitoring Instrument (TROPOMI) short-wave infrared (SWIR) module ' , Atmospheric Measurement Techniques , vol. 12 , no. 12 , pp. 6827-6844 . https://doi.org/10.5194/amt-12-6827-2019
Article (Journal)
Electronic Resource
English
DDC: | 629 |
Novel Approach to Tropospheric NO~2 Retrieval for TROPOMI
British Library Conference Proceedings | 2012
|In-Flight Calibration of the Ozone Monitoring Instrument
British Library Conference Proceedings | 2006
|Thermal Design of the Sentinel 5 precursor TROPOMI Instrument
British Library Conference Proceedings | 2012
|