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CP6, also known as CP6 CubeSat, CalPoly CP-6, PolySat-6 or PolySat CP6 is a single-unit
CubeSat A CubeSat is a class of small satellite with a form factor of cubes. CubeSats have a mass of no more than per unit,, url=https://static1.squarespace.com/static/5418c831e4b0fa4ecac1bacd/t/5f24997b6deea10cc52bb016/1596234122437/CDS+REV14+2020-07-3 ...
which was built and operated by the
California Polytechnic State University California Polytechnic State University, San Luis Obispo (Cal Poly San Luis Obispo or Cal Poly) is a public university in San Luis Obispo County, California, United States, - Cites the location of the university and shows that the university ...
(CalPoly). It was primarily intended to perform a
technology demonstration A technology demonstration (or tech demo), also known as demonstrator model, is a prototype, rough example or otherwise incomplete version of a conceivable product or future system, put together as proof of concept with the primary purpose of show ...
mission. The main experiment consisted of sensors to determine the spacecraft's
attitude Attitude or Attitude may refer to: Philosophy and psychology * Attitude (psychology), a disposition or state of mind ** Attitude change * Propositional attitude, a mental state held towards a proposition Science and technology * Orientation ...
. Cameras on the satellite will be used to verify the data returned by the attitude sensors.


Satellite

Originally built as a backup to CP3 CubeSat, while CP3 is considered an operational satellite by the PolySat team, unreliable radio issues have prevented full operation of the spacecraft's mission-required sensors. which was launched on 17 April 2007, CP6 was modified after it was decided that it would no longer be needed for that role. In addition to the attitude determination experiment, CP6 also planned to test a system to collect
electron The electron (, or in nuclear reactions) is a subatomic particle with a negative one elementary charge, elementary electric charge. It is a fundamental particle that comprises the ordinary matter that makes up the universe, along with up qua ...
s from the ambient plasma environment for the
United States Naval Research Laboratory The United States Naval Research Laboratory (NRL) is the corporate research laboratory for the United States Navy and the United States Marine Corps. Located in Washington, DC, it was founded in 1923 and conducts basic scientific research, appl ...
(NRL) as part of research into electrodynamic propulsion. The electron collector will be deployed once the primary mission, the attitude determination experiment, has been completed. This technology will have potential application in electrodynamic propulsion systems.


Mission

Electrodynamic propulsion offers the prospects of enabling spacecraft to maneuver without the expenditure of conventional fuel, that is the possibility of propellant-less maneuvers. This experiment consists of three deployable devices, an electron emitter consisting of two thoriated
tungsten Tungsten (also called wolfram) is a chemical element; it has symbol W and atomic number 74. It is a metal found naturally on Earth almost exclusively in compounds with other elements. It was identified as a distinct element in 1781 and first ...
filaments which reside at the end of a rolled up steal tape and two electron collectors that are rolled up steel tapes, each long. The tapes and electronics of the experiment are housed in a high space on one side of a deployable door nestled around two cameras of the Cal Poly primary mission. The deployable door and rolled up tapes will be deployed at the conclusion of the Cal Poly primary mission and last for 3–6 months. The mission data will be downlinked to ground stations at the Naval Research Laboratory and Cal Poly.


Launch

It was successfully launched on an
Orbital Sciences Corporation Orbital Sciences Corporation (commonly referred to as Orbital) was an American company specializing in the design, manufacture, and launch of small- and medium- class space and launch vehicle systems for commercial, military and other governmen ...
Minotaur I The Minotaur I, or just Minotaur is an American expendable launch system derived from the LGM-30 Minuteman, Minuteman II missile. It is used to launch Small satellite, small satellites for the Us government, US Government, and is a member of the M ...
launch vehicle from Pad 0B at the
Mid-Atlantic Regional Spaceport The Mid-Atlantic Regional Spaceport (MARS) is a commercial space launch facility located at the southern tip of NASA's Wallops Flight Facility on Wallops Island in Virginia, just east of the Delmarva Peninsula and south of Chincoteague, Vi ...
, at 23:55
UTC Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...
on 19 May 2009. It will be a tertiary payload, with TacSat-3 as the primary payload and PharmaSat as the secondary. Two other CubeSats, AeroCube-3 and HawkSat-1, were also launched on the same launch vehicle, and together the three satellites were known as the CubeSat Technology Demonstration mission. The satellite reentered in the
atmosphere of Earth The atmosphere of Earth is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather ...
on 6 October 2011.


See also

*
List of CubeSats The following is a list of CubeSats, nanosatellites used primarily by universities for research missions, typically in low Earth orbits. Some CubeSats became Timeline of first satellites by country, their country's first national satellite. The ex ...


References


External links


PolySat: California Polytechnic State University Satellite Project - CP6
* {{Orbital launches in 2009 Spacecraft launched in 2009 Student satellites CubeSats Spacecraft launched by Minotaur rockets Spacecraft which reentered in 2011