Venµs mission status, 5 months after launch

Hereafter some news on the status of the Venµs mission.

Venµs was successfully launched from the Kourou space port on August 1st by a VEGA launcher:

 

https://vega.cnes.fr/en/live-vega-launch-venus-august-first-2017

 

First images were acquired by mid-August (see below for examples). The commissioning phase is still running. This phase consists in checking the whole system, including the satellite, the camera, the download of the images and data to the Kiruna receiving station, the ground processing chains, as well as the geometric and radiometric calibrations. All these components are in a good health and working well. However, given the very demanding requirements in terms of multitemporal registration, more work than anticipated is needed to fine tune the AOCS (Attitude and Orbital Control Subsystem) and the processing algorithms. In addition, the first part of the in-flight demonstration of the electric engine developed by RAFAEL (called IHET) will take place from mid-december to mid-january.

 

For these reasons, CNES and ISA plan to resume the systematic acquisitions of the scientific sites early 2018. Preparing the reference images for every site and checking the quality of time series will also take some weeks. We anticipate delivering the Level 1 (top of the atmosphere reflectances, orthorectified) products by april 2018, but all the data acquired from the beginning of systematic acquisitions will be processed and made available on the Theia web site:

http://www.theia-land.fr/en/products/venus

 

Level 2 data (top of the canopy reflectances) might be available slightly later since the method we use requires a time series of data.

You will find some examples of images following the links below :

 

https://presse.cnes.fr/en/france-israel-space-cooperation-venus-vegetation-monitoring-satellite-sends-back-first-images

and here:

 

http://www.cesbio.ups-tlse.fr/multitemp/?p=11215

http://www.cesbio.ups-tlse.fr/multitemp/?p=11096

http://www.cesbio.ups-tlse.fr/multitemp/?p=11344

 

The Moon is also acquired for calibration monitoring purposes:

http://www.cesbio.ups-tlse.fr/multitemp/?p=11344

 

We thank you for your patience. We are doing our best to provide you with quality products.

Happy New Year to you all

Our blog's audience in 2018

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A sixth year begins for the "Séries temporelles" blog, and as usual, it is an opportunity to review its audience, and to get a little self-satisfaction.

The blog is always receiving more visits. even if the annual growth rate is much lower than the previous years, but still 20%... French visitors constitute only 35% of visits. The United States rank second, followed by Morocco, which is probably an effect of CESBIO's long presence in Marrakesh. Then come France neighbouring countries.

 

2013 2014 2015 2016 2017
Number of visits 13985 22928 34723 47773 57692
Number of viewed pages 30922 46940 66947 89555 105846

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Fréquentation du blog en 2017

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Une sixième année commence pour le blog Séries Temporelles, et comme d'habitude, c'est l'occasion de revenir sur sa fréquentation, et de faire un peu d'autosatisfaction.

 

Le blog reçoit toujours plus de visites. même si la croissance devient inférieure à 20%..en un an. Les visiteurs Français ne constituent plus que 35% des visites. Les Etats-Unis viennent en second, suivis par le Maroc, ce qui est probablement un effet de la longue implantation du CESBIO à Marrakech.

2013 2014 2015 2016 2017
Nombre de visites 13985 22928 34723 47773 57692
Nombre de pages lues 30922 46940 66947 89555 105846

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