Mission type | Remote Sensing/Imaging technology |
---|---|
Operator | Fachhochschule Aachen |
COSPAR ID | 2008-021E |
SATCAT no. | 2008-021E |
Website | http://www.raumfahrt.fh-aachen.de/compass-1/home.htm |
Mission duration | Achieved: 10 years, 9 months and 1 day |
Spacecraft properties | |
Spacecraft type | 1U CubeSat |
Manufacturer | Aachen University of Applied Science |
Launch mass | < 1 kilogram (2.2 lb) |
Dry mass | 850 Grams |
Power | 1 watt provided by 10 High-efficient Gallium-Arsenide Triple-Junction solar panels |
Start of mission | |
Launch date | 28 April 2008, 03:53:51 UTC |
Rocket | PSLV-C9 |
Launch site | Satish Dhawan Space Centre Second Launch Pad |
Contractor | ISRO |
End of mission | |
Last contact | March 3, 2012 |
Decay date | January 30, 2019 |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Perigee altitude | 582 km [1] |
Apogee altitude | 597 km [2] |
Inclination | 97.5636° [3] |
Period | 97.4 Minutes |
Compass-1 (also known as Compass One) is a German amateur CubeSat picosatellite, built and operated in the late 2000s by Aachen University of Applied Science. It was launched by the Indian Space Research Organisation, aboard a PSLV rocket as a secondary payload to the CartoSat-2A primary spacecraft [4] on 28 April 2008. [5] It was launched into a Geocentric orbit with an altitude of 597 km. [6] Its primary mission is remote sensing; however, it also contains some technology demonstration experiments regarding the use of small satellites and GPS tracking.
On 10 August 2008, the satellite developed a problem and switched into "emergency mode". [7] Initial attempts to rectify this problem failed; however, normal operations were resumed on 10 September, with help from amateur radio operators around the world.
Most of the objectives for Compass-1 were focused on the evaluation and testing of CubeSats and new technologies. It was made using scratch-built software, hardware, and parts, except the solar panels. Thus it inherited a high risk for mission failure. [8]
Mission objectives include:
-Take color pictures in 640 by 480 resolution [9]
-Validate a Phoenix GPS receiver [10]
-Test a Magnetic Actuator based 3-axis gyroscope [11]
There have been events that have been solved but remain to be explained, as Compass-1 has entered emergency mode and has undergone full resets a number of times.
On August 10, 2008, Compass-1 entered Emergency mode. The cause was unknown and FH Aachen put out a call to all amateur radio operators to try to find out what was going on with the CubeSat. A hard reset occurred, only to bring the satellite into a circle of powering up, turning on the heaters, and then dying again. [12] The only way to exit this loop was to avoid starting the heaters. The team needed as much Telemetry from the ground as possible, which was from amateur radio enthusiasts.
After multiple tries, the Compass-1 team finally got enough charge retained in the batteries to boot the CubeSat and get a beacon and images back from the probe. [13] It was later determined that there was a major software flaw that prevented the heaters from letting the battery charge.
There have been multiple hard resets, with the most recent one being on February 8, 2009. [14]
Compass-1 was retired on March 3, 2012. It still can be used as a beacon until it burns up or the batteries can no longer hold charge. It is expected to stay in orbit until 2019. [15]
AMSAT is a name for amateur radio satellite organizations worldwide, but in particular the Radio Amateur Satellite Corporation (AMSAT) with headquarters at Washington, D.C. AMSAT organizations design, build, arrange launches for, and then operate (command) satellites carrying amateur radio payloads, including the OSCAR series of satellites. Other informally affiliated national organizations exist, such as AMSAT Germany (AMSAT-DL) and AMSAT Japan (JAMSAT).
UoSAT-2, which is also known as UO-11 and OSCAR-11, is a British satellite orbiting in Low Earth Orbit. The satellite functions as an amateur radio transmitter and was built at the University of Surrey. It launched into orbit in March 1984 and remains orbital and active, though unstable with irregular periods of transmission. All of the Analog telemetry channels have failed, making telemetry from OSCAR 11 useless. The satellite was still heard transmitting telemetry in 2015, thirty years after launch.
A CubeSat is a class of miniaturized satellite based around a form factor consisting of 10 cm (3.9 in) cubes. CubeSats have a mass of no more than 2 kg (4.4 lb) per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats are put into orbit by deployers on the International Space Station, or launched as secondary payloads on a launch vehicle. As of August 2021, more than 1,600 CubeSats have been launched.
HAMSAT also known as HAMSAT INDIA, VU2SAT and VO-52 is a microsatellite weighing 42.5 kilograms (93.7 lb), providing amateur radio satellite communications services for Indian and international amateur radio operators. This satellite carries the in-orbit designation of VO-52, and is an OSCAR series satellite.
SuitSat was a retired Russian Orlan space suit with a radio transmitter mounted on its helmet, used as a hand-launched satellite.
Radio Aurora Explorer (RAX) is the first National Science Foundation sponsored CubeSat mission. The RAX mission is a joint effort between SRI International in Menlo Park, California and the University of Michigan in Ann Arbor, Michigan. The chief scientist at SRI International, Dr. Hasan Bahcivan, led his team at SRI to develop the payload while the chief engineer, Dr. James Cutler, led a team of students to develop the satellite bus in the Michigan Exploration Laboratory. There are currently two satellites in the RAX mission.
SwissCube-1 is a Swiss satellite operated by École Polytechnique Fédérale de Lausanne (EPFL). The spacecraft is a single unit CubeSat, which was designed to conduct research into nightglow within the Earth's atmosphere, and to develop technology for future spacecraft. It has also been used for amateur radio. It was the first Swiss satellite to be launched.
M-Cubed is a miniaturized satellite built by students at the University of Michigan in a joint project run by the Michigan Exploration Laboratory (MXL) and JPL. It is an example of the popular CubeSat design for amateur satellites. It was launched from Vandenberg Air Force Base on October 28, 2011 atop a Delta II rocket. M-Cubed was launched as a secondary payload to the Suomi NPP satellite, along with AubieSat-1, DICE-1, DICE-2, Explorer-1 Prime, and RAX-2.
An amateur radio satellite is an artificial satellite built and used by amateur radio operators. It forms part of the Amateur-satellite service. These satellites use amateur radio frequency allocations to facilitate communication between amateur radio stations.
Colorado Student Space Weather Experiment (CSSWE) was the sixth National Science Foundation sponsored CubeSat mission. It was built by students at the University of Colorado at Boulder with advising from professionals at the Laboratory for Atmospheric and Space Physics. The CSSWE mission was a joint effort by the University of Colorado's Department of Aerospace Engineering Sciences and Laboratory for Atmospheric and Space Physics. The mission principal investigator was Prof. Xinlin Li, and the Co-PIs are Prof. Scott Palo and Dr. Shri Kanekal. The project manager for the project was Dr. Lauren Blum, the system engineer was Dr. David Gerhardt, and the instrument scientist was Dr. Quintin Schiller.
Technology Education Satellite (TechEdSat) is a successful nano-sat flight series conducted from the NASA Ames Research Center in collaboration with numerous universities. While one of the principal aims has been to introduce young professionals and university students to the practical realm of developing space flight hardware, considerable innovations have been introduced. In addition, this evolving flight platform has tested concepts for Low Earth Orbit (LEO) sample return, as well as planetary nano-sat class mission concepts.
STRaND-1 is a failed 3U CubeSat developed by Surrey University's Surrey Space Centre (SSC) and Surrey Satellite Technology (SSTL). The 4.3 kg (9.5 lb) nanosatellite was launched into orbit on board a PSLV Rocket from India on February 25, 2013, Smartphones have flown in space before inside the International Space Station, and the computer from a PDA launched inside two Japanese CubeSats in 2006 and 2008.
ESTCube-1 is the first Estonian satellite and first satellite in the world to attempt to use an electric solar wind sail (E-sail). It was launched on 7 May 2013 aboard Vega VV02 carrier rocket and successfully deployed into orbit. The CubeSat standard for nanosatellites was followed during the engineering of ESTCube-1, resulting in a 10×10×11.35 cm cube, with a volume of 1 liter and a mass of 1.048 kg.
LituanicaSAT-1 was one of the first two Lithuanian satellites. It was launched along with the second Cygnus spacecraft and 28 Flock-1 CubeSats aboard an Antares 120 carrier rocket flying from Pad 0B at the Mid-Atlantic Regional Spaceport on Wallops Island to the International Space Station. The launch was scheduled to occur in December 2013, but later was rescheduled to 9 January 2014 and occurred then. The satellite was broadcasting greetings of Lithuanian president, Mrs. Dalia Grybauskaitė. The satellite was deployed from the International Space Station via the NanoRacks CubeSat Deployer on February 28, 2014. All LituanicaSAT-1 subsystems have been turned on, tested and proved to be working properly. The mission is considered a complete success by its team of engineers. The mission ended upon the reentry and disintegration of the satellite on July 28, 2014.
GhanaSat-1 was the first Ghanaian nanosatellite to be launched into space. It was designed and built in two years in conjunction with the Kyushu Institute of Technology Birds-1 program, which has the goal of helping countries build their first satellite.
InflateSail was a 3U CubeSat launched on PSLV C38 on 23 June 2017 into a 505 km polar Sun-synchronous orbit. It carried a 1 m long inflatable rigidizable mast, and a 10 m2 drag-deorbiting sail. Its primary aim was to demonstrate the effectiveness of drag based deorbiting from low Earth orbit (LEO). Built by Surrey Space Centre of the University of Surrey, it was one of the Technology Demonstrator CubeSats for the QB50 mission. An identical drag sail payload was planned to be included on the RemoveDEBRIS demonstrator.
Fox-1D, AO-92 or AMSAT OSCAR 92 is an American amateur radio satellite. Fox-1D is a 1U CubeSat developed and built by AMSAT-NA. Fox-1D carries a single-channel transponder for mode U/V in FM. Fox-1D has an L-band converter, which allows the FM transponder to be switched on an uplink in the 23 centimetres (9.1 in) band.
HuskySat-1 is an artificial satellite designed at the University of Washington. It was launched by Cygnus NG-12 from Mid-Atlantic Regional Spaceport Launch Pad 0 on Wallops Island, Virginia to low earth orbit on November 2, 2019. It is a CubeSat, and will demonstrate onboard plasma propulsion and high gain telemetry for low Earth orbit that would be a precursor for an attempt at a larger CubeSat designed for orbital insertion at the Moon.