News

The BKG
( Bundesamt für Kartographie und Geodäsie) staff has received a training from Callisto on operation and maintenance of the
Triband X,S,Ka cryo-LNA system recently delivered by Callisto. Four people
attended this 2-days training course, mainly electrical and mechanical
engineers and managers.

At the end of August 2012,  Callisto will welcome nine visitors from China to their offices in the South of France for a 7 day training course in Cryogenic Low Noise Systems. The Chinese group will be led by Dr Jin Chengjin from the FAST project of the National Astronomical Observatories in Beijing, and will include participants from Xinjiang Astronomical Observatory, Shanghai Astronomical Observatory and Yunnan Astronomical Observatory. All are existing or potential users of cryogenic low noise receivers for radio astronomy purposes and will be visiting France to learn from Callisto's extensive experience in the design, manufacture, installation, operation and maintenance of cryogenic LNA systems.

 

Callisto is
pleased to announce the delivery of a Triband Cryogenic LNA System to the
German BKG (Bundesamt für Kartographie und Geodäsie), for use in VLBI radio
astronomy.

 Management of Radar Resources for Space Debris Tracking

Tens of thousands of debris are expected in the near future in the most critical Low Earth Orbit (LEO) regimes, hence representing a serious threat for European space assets. In the frame of the Space Situational Awareness Preliminary Programme of the European Space Agency, the design for a ground-based phased array radar - aimed at debris detection and tracking - has been proposed. Track-while-Scan (TwS) survey is combined with Active Tracking (AT) tasks in order to achieve the required performance. A managing strategy for TwS/AT radar resources is analysed versus the accuracy requirements dictated by collision warning services.

Callisto to deliver Cryo LNAs for ESA's Third Deep Space Ground Station (DSA3)

 

 

Callisto has delivered the critical cryo-LNA sub-system comprising three X-Band amplifiers three Ka-Band amplifiers to SED Systems, the prime contractor for the DSA3 project. Callisto had already supplied the cryo-LNAs sub-systems for the previous two deep space stations, the first (DSA1) located in Western Australia and the second (DSA2) located in Spain. DSA3 is being built near the small town of Malargüe in Mendoza province about 1000 km west of Buenos Aires.

 

Callisto recently carried out a study on the cryogenics options for the Square Kilometre Array (SKA) Organization, which aims to develop the largest radio telescope in the World (see www.skatelescope.org) in order to study a wide range of scientific phenomena, including many related to the origins and early development of the Universe.

 

Further information and download report on 

http://www.skatelescope.org/the-technology/consultancy-reports/

 

 

As part of an ongoing support contract to INMARSAT, Callisto provided manpower support to a LEOP being performed by Telespazio for the Apstar-7 satellite. Callisto provided support at the INMARSAT spacecraft control centre in London for the use of  two of the Inmarsat ground stations (Bejing,China and Lake Cowichan, Canada) and the Inmarsat communication network. The launch was successful and the injection was as predicted and the ground stations provided support up until the drift phase.

 

Dans le but de proposer de nouveaux services et un nouveau produit à ses clients, Callisto recherche une personne pour un travail de développement d'alimentations électriques pour des systèmes cryogéniques.

 

Durée : 4-6 mois.

 

Le/la titulaire devra être en préparation d'un diplôme Bac+4/Bac+5 dans le domaine de l'électronique ou de l'ingénierie générale.