CNES Campaign 2011 RSS

Thirteen flights in one campaign

Thirteen zero pressure stratospheric balloon flights including some piggy-backs, are liable to fly over the Russian territory.

CNES balloon campaign

The CNES balloon campaign is scheduled from 7 February to 22 April 2011 and is divided into two parts; 13 flights included technological flights could be selected. The campaign is divided into two parts; first has 6 scientific + 1 techno flights and second has 4 scientific + 2 techno. According to CNES, ETNA-2 will be used on all flights.

Description of the instruments and the missions

Twelve zero pressure stratospheric balloon flights including some piggy-backs, are liable to fly over the Russian territory.
Ten flights are relative to the scientific projects and two flights are dedicated to technological validation.

Performed flights

SP2 (opening flight) Successfully launched at 17:01 on February 15, cut down was given at 22:55 UTC.
The balloon reached an altitude of approximately 20 km and the landing took place in North east of Finland, near the Russian border.
SAOZ  Successfully launched at 14:02 UTC on March  11. Cut down command was given at 15.42 UTC 
ELHYSA  Successfully launched at 19:47 UTC. Cut down command was given at 22:07 UTC. The landing took place i the north part of Finland, close to the village of Ivalo.
MIPAS/TELIS/mini-DOAS  Embedded in the ENRICHED project was launched by CNES on Thursday March 31 from Esrange at 00:46 local time. After a long ascent the balloon reached a maximum altitude of 35.4 km. It was cut at 7:00 local time after about 2:40 min at float and touched down in Russia at 7:40 local time. The payload was recovered on April 1 and transported to Murmansk by helicopter where the customs clearance is prepared for ground shipment back to Esrange.
TWIN  The scientific balloon flight of the TWIN payload in the ENRICHED project was launched by CNES on Friday, April 1 from Esrange at about 16:30 local time. After a short ascent of about 1.5 hours the balloon reached a maximum altitude of close to 24 km. The payload was brought back to Esrange on April 4 and no unusual damage occurred on the instruments. 
 DUSTER The scientific balloon flight of the DUSTER payload was successfully launched by CNES on Thirsday April 7 at 14:25 UTC. The cut down command was given at 17:35 UTC and the balloon landed in the northern part of Sweden.

 CNES SSTD
pre pilot flight

The technical  balloon flight of the SSTD payload including a star tracker sensor was successfully launched by CNES on Thuesday April 19 at 11:11 UTC. The balloon reached a maximum altitude of 33,3 km. The cut down command was given at 14:57 UTC. The touched down took place in the northern part of Sweden.

 SPIRALE

The scientific balloon flight of the SPIRALE payload was successfully launched by CNES on Wednesday April 20 at 20:36 UTC. One of the main scientific objectives of the flight was to track a large tropical intrusion developing above Scandinavia in the stratosphere from about 25 to 35 km height during the night of 20 April. Another goal of the flight was to make the link with the two previous flights from MIPAS and TWIN in the vortex by observing the mixing between polar air and mid-latitude air in the lower levels (15-25 km).

Due to safety constraints, the measurements were possible only during the slow ascent, lasting about 2h30, from 21:00 to 23:30 UT. The gondola touched down at 00:08 UT (2h08 local) at 66.47°N, 18.87°E. The recovery of the payload was performed by SSC at 185 km southwest from Esrange base in the morning of the following day, with no damage on the scientific instruments.

 LPMAA-Doas

The scientific balloon flight of the LMPAA-Doas payload was successfully launched by CNES on Saturday April 23 at 03:01 UTC. The launch and flight were operated by CNES using a balloon size of 402 000 m3. The cut down command was given at 07:10.

 mikroRadibal

The scientific balloon flight of the microRadibal payload was successfully launched by CNES on Sunday April 24 at 00:00 UTC. The balloon reached float at 01:45 UTC, altitide of 31,9 km. The cut down command was given at 03:39 UTC. The touch down took place north of the village of Arjeplog, N66deg, 41.760 ; E017deg, 45.650 .

 SALOMON

The scientific balloon flight of the SALOMON payload was successfully launched by CNES on Thirsday April 28 at 02:34 UTC. The balloon reached float at 04:29UTC, altitide of 32,1 km. The cut down command was given at 05:07 UTC. The touch down took place west of the village of Porjus. Balloon: N67deg, 11.631 ; E18deg, 57.294. Payload: N67deg, 07.955 ;  E19deg, 04.756.


Scientific and technological flights

The scientific flights are dedicated to study the polar atmosphere.
The main scientific objectives are:

  • To enrich the existing dataset in Arctic region in order to follow the evolution and the potential modifications of the coupled chemical-dynamical system in climate change context (ENRICHED Project- European collaboratioN for Research on stratospherIc CHEmistry and Dynamics) Simultaneous measurement of stratospheric water vapour and aerosols.
  • To detect aerosols in the middle stratosphere.
  • The knowledge of the water vapour and aerosols amounts and its time space evolution.
  • In situ highly resolved measurements of CH4 and CO2 in the tropopause and the stratosphere.
  • To carry out high precision measurements of the solar limb, radius and asphericity in conjounction with the PICARD Satellite.
  • To measure the operational failure rate due to neutrons and protons of devices as a function of the altitude. To improve the prediction tools.
  • To validate some scientific instruments. The main characteristics of BSO-borne scientific gondolas in terms of weight, dimensions and type of each instrument and type of balloon are given below (the type of balloon must be confirmed)

Contact persons

Mr Anders Nyström, Project manager SSC
Mr Pierre Chadoutaud, Project manager CNES

 


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