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TELIS: TErahertz and subMMW LImb Sounder – Project summary after first successful flight

Birk , Manfred und Wagner, Georg und de Lange, Gert und de Lange, Arno und Ellison , Brian N. und Harman, Mark R. und Murk, Axel und Oelhaf, Hermann und Maucher, Guido und Sartorius, Christian (2010) TELIS: TErahertz and subMMW LImb Sounder – Project summary after first successful flight. In: 21st International Symposium on Space Terahertz Technology 2010, Seiten 195-200. 21st International Symposium on Space Terahertz Technology, 23.-25. März 2010, Oxfordshire, GB.

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Offizielle URL: http://www.nrao.edu/meetings/isstt/index.shtml

Kurzfassung

The TELIS instrument is a balloon-borne cryogenic three-channel heterodyne spectrometer for limb sounding of stratospheric trace gases. The instrument is flown together with the MIPAS-B Fourier-transform spectrometer of the IMK, Karlsruhe. TELIS was developed by a European consortium involving research institutions, universities, and industrial partners. Thermal emission radiation is coupled in by a 26x13 cm dual offset Cassegrain telescope controlled to maintain constant tangent height during measurement. Radiometric calibration is achieved by a blackbody and deep space view. The radiation is divided into three channels by means of a polarizer and a dichroic. Within a special lightweight cryostat three complete heterodyne receivers are kept at liquid helium temperature: THZ channel, 1750-1890 GHz, hot electron bolometer mixer, DLR; SIR channel, 450-650 GHz, integrated receiver, SIS mixer, SRON (see poster ‘TELIS instrument performance analysis’); subMMW channel, 499-503 GHz, SIS mixer, RAL. A digital autocorrelator spectrometer with 4 GHz bandwidth and ca. 2 MHz resolution serves as backend shared among the channels. The first successful flight was in March 2009 in Kiruna, Sweden. Calibrated spectra are so far only available as quicklook data. Sideband ratios have been characterized recently. The radiometric accuracy of the autocorrelator is under investigation (see poster ‘Characterisation of the TELIS autocorrelator spectrometer’). The present paper will present the instrument as well as first results from the flight.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:TELIS: TErahertz and subMMW LImb Sounder – Project summary after first successful flight
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Birk , Manfred manfred.birk@dlr.de
Wagner, Georg georg.wagner@dlr.de
de Lange, Gert Netherlands Institute for Space Research (SRON)
de Lange, Arno Netherlands Institute for Space Research (SRON)
Ellison , Brian N. Rutherford Appleton Laboratories (RAL)
Harman, Mark R. Rutherford Appleton Laboratories (RAL)
Murk, Axel University Bern
Oelhaf, Hermann Karlsruhe Institute of Technology (KIT)
Maucher, Guido Karlsruhe Institute of Technology (KIT)
Sartorius, Christian NICHT SPEZIFIZIERT
Datum:2010
Erschienen in:21st International Symposium on Space Terahertz Technology 2010
Seitenbereich:Seiten 195-200
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Yassin, GhassanRAL
Ellison, BrianRAL
Status:veröffentlicht
Stichwörter:atmospheric remote sensing, cryogenic 3-channel heterodyne receiver
Veranstaltungstitel:21st International Symposium on Space Terahertz Technology
Veranstaltungsort:Oxfordshire, GB
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:23.-25. März 2010
Veranstalter :University of Oxford and STFC Rutherford Appleton Laboratory
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Projekt TELIS (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Experimentelle Verfahren
Hinterlegt von: Dr.rer.nat. Georg Wagner
Hinterlegt am:30 Nov 2010 07:12
Letzte Änderung:20 Jan 2011 11:31

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