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The Tropomi instrument: last steps towards final integration and testing

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Author: Doornink, J. · Vries, J. de · Voors, R. · Dingjan, J. · Ording, B. · Valk, N. van der · Vink, R. · Hoogeveen, R. · Grant, J. · Canas, T. · Kleipool, Q. · Veefkind, P.
Publisher: SPIE
Source:Sodnik, Z.Cugny, B.Karafolas, N., International Conference on Space Optics, ICSO 2014, 7-10 October 2014, La Caleta, Tenerife, Canary Islands, Spain, 10563
Proceedings of SPIE - The International Society for Optical Engineering
Identifier: 842177
ISBN: 9781510616158
Article number: 1056342
Keywords: Electronics · Air quality · Earth atmosphere · Instrument testing · Dutch spaces · Local scale · Monitoring instruments · Sub-units · System levels · Integration testing · High Tech Systems & Materials · Industrial Innovation · Physics & Electronics · SSE - Space Systems Engineering · TS - Technical Sciences


The Tropospheric Monitoring Instrument TROPOMI is ready for system level verification. All sub-units have been integrated and tested and final integration at Dutch Space in Leiden has been completed. The instrument will be subjected to a testing and calibration program and is expected to be ready for delivery to the spacecraft early 2015. Using TROPOMI measurements, scientists will be able to improve and continue the study of the Earth’s atmosphere and to monitor air quality, on both global and local scale. TROPOMI is a passive UV-VIS-NIR-SWIR imaging spectrograph and as such is the next step in a series of successful instruments like SCIAMACHY, GOME and OMI. TROPOMI is the only instrument on the Sentinel 5 Precursor satellite (S5P), indicating also its function as a forerunner for the Sentinel 5 instrument. Compared with its predecessors, TROPOMI will be a major improvement in terms of spatial resolution and data quality. In previous papers on TROPOMI, emphasis has been on the performance specifications and on some novel technologies applied in TROPOMI. This paper provides a short recapitulation of TROPOMI’s main features, presents some test results obtained and provides an overview of the verification steps still to come. Subsystem test results are very promising and we anticipate that TROPOMI will fully meet the user’s expectations.