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COMARS+ Instrumentation Package of the ExoMars Schiaparelli Lander and its Flight Performance

Gülhan, Ali and Thiele, Thomas and Siebe, Frank and Schleutker, Thorn (2018) COMARS+ Instrumentation Package of the ExoMars Schiaparelli Lander and its Flight Performance. In: 69th International Astronautical Congress 2018. 69 th International Astronautical Congress, 1.-5. Oktober 2018, Bremen, Deutschland.

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Abstract

The instrumentation package COMARS+ was part of the back cover instrumentation of the ExoMars Schiaparelli lander and consisted of three COMARS sensors and one broadband radiometer. The aerothermal sensors called COMARS combine four discrete sensors measuring static pressure, total heat flux, temperature and radiative heat flux. The Schiaparelli capsule was launched on top of a Proton launcher on 14 th March 2016. The entry into the, Martian atmosphere took place on 25 th October 2016. All COMARS+ sensors operated nominally during the complete entry phase. But the complete flight data package is not available due to an anomaly that led to the failure of Schiaparelli shortly before landing. Nevertheless, a subset of the COMARS+ flight data was transmitted real-time during the entry phase and was received by the ExoMars 2016 orbiter, with the exception of the plasma blackout phase. The radiative heat flux on the back cover close to the vehicle shoulder was measured successfully for the first time on a Mars entry vehicle. The measured maximum radiative contribution was 61 % of the total heat flux at the first measurement point after the blackout phase and 33 % for the next measured trajectory point 10 seconds later. These measurements confirm recent findings that radiative heating can be a significant portion of the total heating on the back cover during Mars entry.

Item URL in elib:https://elib.dlr.de/121763/
Document Type:Conference or Workshop Item (Speech)
Title:COMARS+ Instrumentation Package of the ExoMars Schiaparelli Lander and its Flight Performance
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Thiele, ThomasThomas.Thiele (at) dlr.deUNSPECIFIED
Siebe, FrankFrank.Siebe (at) dlr.deUNSPECIFIED
Schleutker, ThornThorn.Schleutker (at) dlr.dehttps://orcid.org/0000-0002-1833-2850
Date:October 2018
Journal or Publication Title:69th International Astronautical Congress 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:ExoMars, atmospheric entry, entry capsule, lander, heat flux
Event Title:69 th International Astronautical Congress
Event Location:Bremen, Deutschland
Event Type:international Conference
Event Dates:1.-5. Oktober 2018
Organizer:International Astronautical Federation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ExoMars
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Schleutker, Thorn
Deposited On:13 Nov 2018 09:56
Last Modified:11 Dec 2018 10:11

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