CNES uses stratospheric balloons to conduct scientific missions at the edge of space. Balloons can reach altitudes of up to 41 km and carry payloads for missions lasting over 24 hours. CNES operates a balloon launch system including balloons, gondolas, ground stations, and control rooms to coordinate launches and monitor flights. Recent missions have studied water vapor and greenhouse gases in the atmosphere, observed interstellar dust, and tested solar panel calibration.

1. CNES Stratospheric balloons :
Science at the edge of space
Olivier Carré
Toulouse, September 28th
#CWIN17

2. Session’s Title | Date
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Table of Contents
 Welcome
 Stratospheric balloon, the challenges
 The CNES BSO system
 Inside a launch campaign
 The flights and the missions
 The Movie !

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What balloons and what for
Picture source CNES Picture source CNES

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The campaigns

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Envelope harness (HAR_ENV)
Payload
Parachutes (PAR)
Gas Valve (CLAP)
Gas evacuation sleeve
NSO (BAL + ITAC + ULIS)
32m, 42 m or 62
m
Hanging
system
Main splitter (SEPP)
Envelope gondola (NEV)
NFAE
2 m
Carrier (VP)
19 to 150 m
Inflation sleeve
Hook
S band gondola
Point triple (PTRI)
Wifi antenna
Wifi antenna
Envelope (ENV)
Feu à éclat (FAE)
Electricatl harness
5 m
CDV
Picture source CNES

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CNES BSO system
NSO NEV 
BAX 
Helium
truck
Main balloon &
flight chain

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CNES BSO system
Ciclop (SSO)
Staion dande
S Timmins
Station
bande S
Chibougamau
Salle Opérationnelle
MODEM IRIDIUM
BSO
Constellation
IRIDIUM
2 GHz2 GHz
Picture source CNES

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CNES BSO system
Control room 
CICLOP 
ASA 
SCILA 

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Inside a launching campaign

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Content master (not more than two lines)

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Flight and operators

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Negative chronology

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The missions
CLIMAT : Measurement of water
vapor, methane and de carbon
dioxide in the atmosphere
PILOT : Measure the polarized emission
(and intensity) of dust grains in the
interstellar medium (a mixture of gas and
dust that fills the space between stars) of
our Galaxy
CARMEN : Chemistry of the
atmosphere and calibration of solar
panels
© Sébastien Chastanet – OMP/ IRAP / UT3 / CNES /CNRS

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141 km
341 km
301 km
141 km
236 km
58 km
Distance à Timmins
10h21
4h17
10h36
11h26
23h54
18h15
Temps de vol
Picture source CNES

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Mission profile
Picture source CNES

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The Movie !

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Thanks
 Stéphane Louvel (CNES) Mission manager
 Alain Douliez (CNES) ground segment manager
 Vincent Dubourg, Head of CNES Balloon Projects
 The whole operational team
 The Capgemini ground segment maintenance team

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One more thing.

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Thank You!
Olivier
Carré
Senior Solution Architect, Capgemini
olivier.carre@capgemini.com

21. www.capgemini.com
The information contained in this presentation is proprietary.
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