SWIR housekeeping

The relevant housekeeping parameters for stability of the SWIR signal and thermal background are listed in the Table below. The reports on the SWIR housekeeping parameters are generated once per day from the TROPOMI L1B engineering products. All sensors are available at 1 Hz in the L1B engineering product, but averaged over 30 seconds for the zoom plots and averaged over a full orbit in the trend plots. The mean value is shown as a line and the range between the minimum and maximum value as a band.


 description unit nominal resolution
 SWIR detector temperature K  140 K  3.84 mK
 SWIR grating temprature K  202 K  8.17 mK
 SWIR imager temprature K  203 K  81.7 mk
 SWIR OBM temperature K  208 K  81.7 mk
 calibration unit temperature K  292 K  12 mK
 SWIR detector heater current mA  40 mA  0.01333 mA
 SWIR OBM heater duty cycle %  55 %  0.0256 %
 SWIR FEE heater duty cycle %  50 %  0.0256 %
SWIR OBM heater current A  0.4 A 1.5 mA
SWIR FEE box heater current A  0.2 A 1.5 mA
 SWIR FEE inner frame temperature K  290 K  5.3 mK
SWIR FEE board temperature K  293 K 4.8 mK
SWIR FEE reference-voltage temperature K  294 K 4.8 mK
SWIR FEE video amplifier temperature K  293.5 K 4.8 mK
SWIR FEE video ADC temperature K  296.5 K 4.8 mK

TROPOMI is a collaboration between Airbus Defence and Space Netherlands, KNMI, SRON and TNO, on behalf of NSO and ESA. Airbus Defence and Space Netherlands is the main contractor for the design, building and testing of the instrument. KNMI and SRON are the principal investigator institutes for the instrument. TROPOMI is funded by the following ministries of the Dutch government: the Ministry of Economic Affairs, the Ministry of Education, Culture and Science, and the Ministry of Infrastructure and the Environment.

Other websites on TROPOMI
and Sentinel-5 Precursor:

Netherlands Space Office
Airbus Defence and Space