トップ へ戻る．● (No.216) Nadezhda / Tsinghua / Snap 打ち上げ (2000年7月1日) ------------------------------------------------------------- 先日(Jun 28, 2000) 10:37UTC (19:37JST) に、Cosmos-3M ロケットにより ロシアの Plesetsk Cosmodrome 発射場から、３個の新しい衛星が打ち上げ られました。 Nadezhda-M (ナデズダ -M) ロシアの COSPAS-SARSAT ナビゲーション軍事衛星 [メインペイロード] Tsinghua-1 (ツイングァ -1) 災害監視画像送信用の中国のマイクロ衛星 [SSTL製作] SNAP-1 (スナップ -1) SSTL(Surrey Satellite Technology Limited) サレー衛星科学技術研究所 SSC(Surrey Space Centre) サレー宇宙センター の英国共同製作の小型アマチュア無線衛星 [S band only, 38k4 BPSK Downlink on 2430 MHz] 《原文》 Date: Tue, 27 Jun 2000 13:38:58 +0100 From: Peter Guelzow [Peter.Guelzow@arcormail.de] To: amsat-bb@amsat.org Subject: [amsat-bb:32944] SNAP-1 launch June 28 Cosmos 3M Nadezhda M Launch time: 1037 GMT (0637 EDT) Launch site: Plesetsk Cosmodrome, Russia A Cosmos 3M will launch the Russian military Nadezhda COSPAS-SARSAT navigation satellite, the Chinese Tsinghua-1 microsatellite to demonstrate the potential for future daily imaging of disaster monitoring and mitigation and SNAP-1, Surrey's first nanosatellite capable of inspecting other spacecraft in orbit. more is here: http://spaceflightnow.com/news/n0006/27cosmos3m/ http://www.carrotworks.com/veg/projects/snap1-mvs/index.html http://www.sstl.co.uk/services/mn_nanosatellites.html GOOD LUCK for the launch! 73s Peter ---- Date: Wed, 28 Jun 2000 10:08:14 +0100 From: Peter Guelzow [Peter.Guelzow@arcormail.de] CC: amsat-bb@amsat.org Subject: [amsat-bb:32969] Re: SNAP-1 launch Richard W L Limebear wrote: > > Peter Guelzow writes: > > > > A Cosmos 3M will launch the Russian military Nadezhda > > COSPAS-SARSAT navigation satellite, the Chinese Tsinghua-1 > > microsatellite to demonstrate the potential for future daily > > imaging of disaster monitoring and mitigation and SNAP-1, > > Surrey's first nanosatellite capable of inspecting other > > spacecraft in orbit. > > As a matter of fact the Tsinghua was also built at Surrey and thats > the bird that SNAP's going to be inspecting. Yes, but SNAP-1 is an amateur radio spacecraft, Tsinghua is not operating in the amateur radio bands. SNAP-1 has S band only, 38k4 BPSK Downlink on 2430 MHz. Chris Jackson is very busy at the moment, but he will give more info when he is back from China. Because of the very tight power budget of the little bird, it will be manually commanded from Surrey to get the transmitter on/off until software will automatically control the bird. Only a few hours until launch now... Fingers crossed.. 73s Peter ---- Date: Thu, 29 Jun 2000 18:22:17 +0100 From: Peter Guelzow [Peter.Guelzow@arcormail.de] To: amsat-bb@amsat.org Subject: [amsat-bb:32994] Re: SNAP-1 launch Ground controllers at TsingHua University reported they received telemetry from Tsinghua-1 about seven hours after launch and all looked normal. Surrey's mission control made contact with SNAP-1 at 0140 GMT on Thursday. "The telemetry indicates that all parameters are nominal," said Dr. Craig Underwood of SSTL. "As you can imagine the team here is delighted with the dual success of the SNAP-1 and Tsinghua-1 satellites. We are now in the process of commissioning the spacecraft and their payloads." > SNAP-1 has S band only, 38k4 BPSK Downlink on 2430 MHz. Congratulations! 73s Peter ---- Date: Tue, 4 Jul 2000 09:17:38 -0500 From: "Dan James" [nn0dj@wiktel.com] To: "ANS Release" [ans@amsat.org] Subject: [jamsat-news:1295] ANS 184 Surrey Satellite Technology reported to ANS about two new satellites; Tsinghua-1 and SNAP-1. Both satellites were successfully launched recently by a Russian COSMOS rocket as secondary payloads. The Tsinghua-1 microsatellite, a collaborative project with Tsinghua University in Beijing, China, was designed and built by a joint Tsinghua/SSTL team at Surrey Space Center, in Guildford, UK. Tsinghua-1 carries multispectral Earth imaging cameras as well as experimental communications payloads, including digital store-and-forward, a digital signal processing (DSP) experiment, a GPS space receiver and a new 3-axis microsatellite attitude control experiment. SNAP-1, the UK's first nanosatellite, was designed and built by SSTL as a research project for evaluating the use of commercial micro-miniature technologies for highly advanced, yet tiny, satellites. Surrey calls SNAP-1 "a highly integrated and sophisticated spacecraft." SNAP-1 weighs just 6.5-kg and carries GPS navigation, camera technology, onboard computing and propulsion and attitude control technologies. SSTL reports that both missions are experimental and, using an inter-satellite link, it is planned that the SNAP-1 and Tsinghua-1 spacecraft will attempt to rendezvous in-orbit and demonstrate formation flying of nano-microsatellites for the very first time. Both satellites are in a 650-km sun-synchronous orbit. [ANS thanks Surrey Satellite Technology for this information]
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