OSSI-1

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OSSI-1
Mission type Research/amateur radio
COSPAR ID 2013-015B[1]
SATCAT № 39131[1]
Website http://opensat.cc/
Spacecraft properties
Spacecraft type 1U CubeSat
Manufacturer Home made
Launch mass 950g [2]
Dimensions 10 centimetres (3.9 in) cube
Start of mission
Launch date 19 April 2013, 10:00 (2013-04-19UTC10Z) UTC
Rocket Soyuz 2-1a
Launch site Baikonur 31/6
Contractor Roskosmos
End of mission
Decay date 30 June 2013
Orbital parameters
Reference system Geocentric
Regime Low Earth
Semi-major axis 6,778 kilometres (4,212 mi)[3]
Perigee 263.0 kilometres (163.4 mi)[3]
Apogee 552.8 kilometres (343.5 mi)[3]
Inclination 64.9 degrees[3]
Period 92.6 minutes[3]
Epoch 14 May 2013[3]

OSSI-1 (standing for Open Source Satellite Initiative-1) is an amateur radio satellite launched in 2013 with Bion-M No.1. Bion-M was launched into orbit at 10:00 UTC on April 19, 2013, from Baikonur Cosmodrome, Kazakhstan, with 6 small satellites, including OSSI-1. OSSI-1 detached from Bion-M at 16:15 UTC.[1][4]

OSSI-1 is the pet project of Hojun Song, a Korean artist and amateur radio operator. He worked on it for seven years, designing and building the satellite using off-the-shelf components rather than equipment that had been certified for use in space.[4] The most expensive aspect of the project was the launch, which cost US$100,000.[4][5][6]

OSSI-1 is a 1U CubeSat with 100mm sides, weighing 950g.[2][7] It uses an arduino microcontroller, a lithium-ion battery and a J mode UHF/VHF transceiver.[7]

The satellite has a Morse code beacon transmitting "OS0 DE OSSI1 ANYOUNG" on 145.980 MHz and 4 LED lights with a total power of 44 watts to flash Morse code messages, using an open protocol. The project developers announced on 24 April 2013 that they had not yet received a signal from the satellite and were concerned that the Two-line element set they were using to locate the satellite might be wrong.[4][7][8][9]

According to Korean amateur radio organisation KARL, Hojun Song had some difficulties launching a satellite as a private individual, connected to registering with space bodies and being allocated broadcast frequencies by the international telecoms regulator the ITU. A law requires knowledge of the launch date two years in advance which he was not able to give as he was sharing a launch with other experimental satellites. The amateur radio bands are nearly full but to use other bands would require more expensive specialist equipment and technical skills.[9] In 2011 OSSI-1 signed a contract with a French nano satellite company for a turnkey launch service in order to secure a launch date.[10]

References[edit]

  1. ^ a b c "2013-015". Zarya.Info. Retrieved 14 May 2013. 
  2. ^ a b "OSSI-1". National Space Science Data Centre. Retrieved 14 May 2013. 
  3. ^ a b c d e f "OSSI 1". REAL TIME SATELLITE TRACKING. Retrieved 14 May 2013. 
  4. ^ a b c d "OSSI-1". Amsat.uk. Retrieved 14 May 2013. 
  5. ^ "South Korean artist has high hopes for his homemade satellite". BBC News. 27 July 2012. Retrieved 14 May 2013. 
  6. ^ "Alpha Geek: Hojun Song, DIY Satellite Builder". Wired. 30 August 2010. Retrieved 14 May 2013. 
  7. ^ a b c "D.I.Y. Satellite". OSSI. Retrieved 14 May 2013. 
  8. ^ "OSSI-1". dk3wn. Retrieved 14 May 2013. 
  9. ^ a b "INTERNATIONAL AMATEUR RADIO UNION REGION 3. FIFTEENTH REGIONAL CONFERENCE. Triennial Report from KARL (2009-2012)". KARL. 2012. Retrieved 14 May 2013. 
  10. ^ "OSSI mandates NovaNano to secure a launch opportunity in 2012 for the first individual satellite". OSSI. 21 June 2011. Retrieved 15 May 2013.