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Post Info TOPIC: SSETI Express Launch


L

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SSETI project
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The Student Space Exploration & Technology Initiative (SSETI) is a unique project put into execution by students from different universities spread over European countries. In collaboration with space industry they aim to build microsatellites together.
Launch Date and Time: 27 October 2005 at 08:52 CEST

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TopSat
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TopSat, captured this image of the Farnborough International Airshow on July 18.


Credit: QinetiQ

TopSat is a micro-satellite system conceived to provide high resolution imaging of the Earth at low cost.
A key feature of the TopSat program is the fact that the satellite was designed to return its data directly to a mobile ground station immediately after collecting an image, allowing far more timely delivery of the information it collects.
TopSat is derived from Tactical Optical Satellite, emphasising that system was specifically designed to meet operational timescales, whether for disaster relief, news-gathering, or military operations.
TopSat weighs just 120 kilograms, but carries an optical camera capable of delivering panchromatic images with a spatial resolution at nadir of 2.8 meters covering a 17-kilometer square area, and simultaneous three-band multi-spectral images - red, green, blue - with a resolution of 5.6 meters.

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Mozhayets-5
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The commission investigating the failure of the Mozhayets satellite to detach from the Kosmos-3M booster and make contact on October 27, 2005, said there was little hope of regaining control of the unit.

A source at the Plesetsk cosmodrome, the launch site of the satellite noted that the inter-departmental commission continues to investigate the cause of the malfunction.

"On Sunday, a commission of Space Troops and insurance company representatives arrived at the cosmodrome"

An emergency affecting Mozhayets occurred several hours after the blast-off. Under one of the versions, the satellite failed to detach from the booster due to a command flow error.

Supposedly, it botched the execution of the command for blowing off by explosive bolts, which had to separate the craft from the second stage, sending it into autonomous flight.

Mozhayets-5, an experimental satellite, was the main payload of the October 27 launch, intended as an interface in training satellite control at the Mozhaisky military space academy.

Its other function was to assess the influence of radiation on avionics at an altitude of 700 to 800 kilometres.

However, the booster put in orbits eight other satellites, including two China-DMC remote-probing units, developed by Britain's SSTL, and Britain's TopSat.

Mesbah, one of the two Iranian satellites, was manufactured by Italy's Carlo Gavazzi Space. Sinah-1 was manufactured in Iran.

SSETI Express of the European Space Agency, with a mass of 62 kilograms, was developed within the framework of a European educational project for students of ten universities. After reaching a preset orbit, it launched three ultra small pico-satellites each weighing one kilogram. The pico-satellites belong to the University of Wurzburg, Germany, the Tokyo University and the Andoya rocket range (Norway).

The two-stage booster Kosmos-3M can take payloads of up to 1,500 kilograms to 1,700-kilometer to 250-kilometer orbits. Russia has been using it since 1971.

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RE: SSETI Express Launch
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SSETI 1 EXPRESS was successfully launched on the morning of November 27th. SSETI 1 EXPRESS is the first Internet-build Student Satellite and a very interesting project. However, SSETI EXPRESS has gone into safe mode due to power-supply problems.

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A Kosmos 3M rocket will launch the China DMC+4 observation satellite, the TopSat imaging satellite for the British government, the Student Space Education and Technology Initiative (SSETI) Express satellite, three small CubeSats and a group of Russian and Iranian research craft, from the Plesetsk Cosmodrome, Russia, at 06:52 GMT on the 27th October 2005.

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VIDEO (Windows media player, 2mb)

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Cosmos Launch
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A satellite equipped with novel solar antennas developed by the EPFL (Ecole Polytechnique Federale de Lausanne) will be part of the payload on the Russian rocket Cosmos.
This satellite incorporates advanced technology that combines antenna functions and solar cells on a single surface.

The rocket's payload will also include a satellite designed and built by students from several European universities, including a group of EPFL students.
Because of the enormous cost of getting to their destination, structures used in space applications have to be lighter, smaller, and more reliable than their Earth-bound counterparts.
In confronting this challenge, the European Space Agency (ESA) drew upon the recognized expertise of the Electromagnetics and Acoustics Laboratory at the EPFL in Switzerland, asking them to develop a single surface that could function as both antenna and solar cell array.

As EPFL professor Juan Mosig notes, "The planar antennas have plenty of quiet real estate available for solar cells," and a combined surface is ideal as it results in a substantial efficiency gain and weight reduction for the satellite.

Advances in both solar cell and antenna technology have been made in the development of the antenna, nicknamed Asolant (Advanced SOLar ANTenna). Six years after initiation, it's ready for its new life in space. The structure is light and thin. It's strong and provides its own source of energy. Its gallium arsenide solar cells are adapted to the conditions of space. The antenna will communicate with Earth, sending and receiving GPS signals as well as signals from mobile telephone networks such as Orbcomm.

The Zurich-based firm HTS handled the antennas' manufacture, and the structure will ride aboard a Rubin satellite, adapted to the Electromagnetics and Acoustics Lab's specifications by the German company OHB Systems.
Because Asolant is autonomous, providing its own power source with the solar cells on its surface, it also has the potential for many exceedingly practical Earth-based applications.
Sheets of solar antennae on residential rooftops could simultaneously power the home and send and receive TV, radio and wireless phone and internet signals. Buoy-based solar antennas could improve atmospheric and oceanic data-gathering capabilities, providing better early-warning systems for hurricanes, tsunamis and other natural disasters. Solar antennas could be used in increasingly power-hungry cell phones. Information from remote regions could be sent via autonomous transmitters.

The EPFL's Electromagnetics and Acoustics Lab has spun off a Swiss start-up company, JAST, that is in the process of studying the market possibilities of these kinds of applications.
The Cosmos rocket will also launch a student satellite. This ESA-sponsored project, carried out in the framework of the Student Space Exploration and Technology Initiative (SSETI), caught the attention of a small group of EPFL students. The electronics they developed will contribute to the satellite's propulsion system, according to PhD student Renato Krpoun.
After undergoing several tests in the first few months in orbit, the satellite will ultimately function as an amateur radio transponder.

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Date:
Kosmos-3 launch
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The launch of SSETI Express from the Plesetsk cosmodrome, which was due for launch Friday 30 September, has been postponed to a later unspecified date.
The delay is due to problems with a spacecraft travelling together with SSETI Express on the Russian Kosmos-3.

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SSETI Express Launch
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The launch of the Student Space Education and Technology Initiative (SSETI) Express satellite from the Plesetsk cosmodrome, Russia, has been delayed by 3 days, making 30 September the new tentative launch date.
The launch time will remain the same at 06:52:26 UTC.
Technicians for another spacecraft, which will also be travelling with SSETI Express onboard the Russian Kosmos 3M, have asked for some extra launch campaign time.

The Kosmos 3M rocket will also launch the China DMC+4 observation satellite, the TopSat imaging satellite for the UK government, three small CubeSats and a group of Russian and Iranian research craft.

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