Kedr

ARISSat-1 at Dayton Hamvention 2010

Mission type| Amateur radio
Operator| RKK Energia
COSPAR ID| 1998-067CK
SATCAT no.| 37772
Mission duration| 6 months
Spacecraft properties
Manufacturer| The Radio Amateur Satellite Corporation (AMSAT-NA)
Launch mass| 30 kilograms (66 lb)
Start of mission
Launch date| 28 January 2011, 01:31:39 (2011-01-28UTC01:31:39Z) UTC
Rocket| Soyuz-U
Launch site| Baikonur 1/5
Deployed from| ISS
Deployment date| 3 August 2011
End of mission
Decay date| 4 January 2012
Orbital parameters
Reference system| Geocentric
Regime| Low Earth

Kedr (Russian: кедр meaning Siberian pine; Yuri Gagarin's callsign during the Vostok 1 mission), also known as ARISSat 1 and RadioSkaf-2 (formerly known as SuitSat 2), was[1] an amateur radio minisatellite operated by RKK Energia as part of the Amateur Radio on the International Space Station and RadioSkaf programmes. A follow-up to the SuitSat spacecraft, Kedr was launched to commemorate the fiftieth anniversary of the Vostok 1 mission.

Kedr transmitted 25 greetings in 15 different languages.[2] It also transmitted photos of the Earth, telemetry and scientific data,[3] voice, telemetry and slow-scan television data on a frequency of 145.950 MHz.[4] The satellite was also intended for use in educational programmes.[3] Kedr was a 30-kilogram (66 lb) satellite measuring 55 centimetres (22 in) by 55 centimetres (22 in) by 40 centimetres (16 in). It carried solar cells to generate power, and was expected to operate for six months.[5]

For launch, Kedr was stored aboard the Progress M-09M spacecraft, which was launched to resupply the International Space Station. Progress M-09M was launched atop a Soyuz-U carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome at 01:31:39 UTC on 28 January 2011.[6] It docked with the International Space Station at 02:39 UTC on 30 January.[7]

Kedr was deployed from the ISS by Sergey Volkov during an extra-vehicular activity on 3 August 2011[8] and re-entered Earth's atmosphere on 4 January 2012,[1] having spent 154 days in orbit.

"KEDR" was also used as the suffix for several Russian amateur radio call signs (for example, RS0KEDR) that were active in 2014 around the 80th anniversary of Gagarin's birth.

## References

1. ↑ 1.0 1.1 "ArisSat-1 SK". http://www.southgatearc.org/news/january2012/arissat1_sk.htm.
2. ↑ "ARISSat-1 voice messages". 22 January 2012. https://www.satblog.info/arissat-1-voice-messages/.
3. ↑ 3.0 3.1 SPACEWARN Bulletin 687, NASA, February 1, 2011, http://nssdc.gsfc.nasa.gov/spacewarn/spx687.html
4. ↑ (in ru) Запуск RS1S (Кедр) ARISSat-1 (Starting RS1S (Kedr) ARISSAT-1), Kursk State University "Sporadic" radio club, April 2, 2011, http://sporadic.ru/
5. ↑ Krebs, Gunter. "ARISSat 1 (Radioskaf 2, Kedr)". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/arissat-1.htm.
6. ↑ "ISS On-Orbit Status". NASA. 28 January 2011. http://www.nasa.gov/directorates/somd/reports/iss_reports/2011/01282011.html.
7. ↑ "ISS On-Orbit Status". NASA. 30 January 2011. http://www.nasa.gov/directorates/somd/reports/iss_reports/2011/01302011.html.
8. ↑ ARISSat-1 Finally Deployed from ISS, ARRL, August 3, 2011, http://www.arrl.org/news/view/arissat-1-finally-deployed-from-iss, retrieved 2011-08-05

## External links

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Orbital launches in 2011

Elektro-L No.1 | USA-224 | Kounotori 2 | Progress M-09M (Kedr) | Kosmos 2470 | USA-225 | Johannes Kepler ATV | STS-133 (Leonardo) | Kosmos 2471 | Glory * Explorer-1 [Prime] * KySat-1 * Hermes | USA-226 | USA-227 | Soyuz TMA-21 | Compass-IGSO3 | USA-229 | Resourcesat-2 * YouthSat * X-Sat | Yahsat 1A * New Dawn | Progress M-10M | Meridian 4 | USA-230 | STS-134 (AMS-02 * ELC-3) | Telstar 14R | ST-2 * GSAT-8 / INSAT-4G | Soyuz TMA-02M | SAC-D | Rasad 1 | ChinaSat 10 | Progress M-11M | Kosmos 2472 | USA-231 | Shijian XI-03 | STS-135 (Raffaello * PSSC-2) | Tianlian I-02 | Globalstar M083 * Globalstar M088 * Globalstar M091 * Globalstar M085 * Globalstar M081 * Globalstar M089 | GSAT-12 | SES-3 * KazSat-2 | USA-232 | Spektr-R | Compass-IGSO4 | Shijian XI-02 | Juno | Astra 1N * BSAT-3c/JCSAT-110R | Paksat-1R | Hai Yang 2A | Sich 2 * NigeriaSat-2 * NigeriaSat-X * RASAT * EduSAT * AprizeSat-5 * AprizeSat-6 * BPA-2 | Ekspress-AM4 | Shijian XI-04 | Progress M-12M | GRAIL-A * GRAIL-B | Zhongxing-1A | Kosmos 2473 | Arabsat 5C * SES-2 | IGS Optical 4 | Atlantic Bird 7 | TacSat-4 | Tiangong-1 | QuetzSat 1 | Kosmos 2474 | Intelsat 18 | Eutelsat W3C | Megha-Tropiques * SRMSAT * VesselSat-1 * Jugnu | ViaSat-1 | Thijs * Natalia | NPP * E1P-U2 * RAX-2 * M-Cubed * DICE-1 * DICE-2 * AubieSat-1 | Progress M-13M (Chibis-M) | Shenzhou 8 | Kosmos 2475 * Kosmos 2476 * Kosmos 2477 | Fobos-Grunt * Yinghuo-1 | Yaogan 12 * Tian Xun-1| Soyuz TMA-22 | Shiyan Weixing 4 * Chuang Xin 1C | AsiaSat 7 | Mars Science Laboratory (Curiosity) | Kosmos 2478 | Yaogan 13 | Compass-IGSO5 | Amos-5 * Luch 5A | IGS Radar 3 | Pléiades-HR 1A * SSOT * ELISA 1 * ELISA 2 * ELISA 3 * ELISA 4 | NigComSat-1R | Soyuz TMA-03M | Ziyuan-1C | Meridian 5 | Globalstar M080 * Globalstar M082 * Globalstar M084 * Globalstar M086 * Globalstar M090 * Globalstar M092

Payloads are separated by bullets ( * ), launches by pipes ( | ). Crewed flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).

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