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Satelit komersial AS bertembung dengan Satelit Tentera Rusia

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Post time 13-2-2009 02:46 PM | Show all posts |Read mode
Pentagon tidak jangka dua satelit bertembung

WASHINGTON: Pentagon mengakui bahawa mereka tidak menjangkakan dari awal satelit komersial Amerika Syarikat berlanggar dengan satelit tentera Russia, semalam, nahas angkasa paling besar dalam sejarah.

"Kami tidak menjangkakan nahas ini boleh berlaku," kata jurucakap Pentagon, Bryan Whitman.

The Bethesda, pemilik Satelit Irridium yang berpangkalan di Maryland mengumumkan semalam, operasi satelit berkenaan berakhir apabila berlanggar dengan satelit Russia.

Pusat Operasi Angkasa Bersama AS berkata, mereka menjejaki kira-kira 18,000 objek di orbit pada satu-satu masa- jumlah yang sangat banyak untuk menerokainya lebih dekat seperti Stesen Angka Antarabangsa (ISS) dan pesawat angkasa lain.

"Kebolehan kami untuk menjejaki adalah terhd dan setiap objek buatan manusia di orbit sememangnya dipantau komputer.

"Namun ia kemalangan yang tidak disangka membabitkan kerjasama kita dalam bidang angkasa lepas," katanya. - AFP

PS: ye ke tak sengaja?
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 Author| Post time 13-2-2009 02:48 PM | Show all posts
Satellite collision threatens space assets

4 hours ago

WASHINGTON (AFP)
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Post time 13-2-2009 02:57 PM | Show all posts
Soalan bodoh...in orbit ni ada highway ke untuk semua satelit ikut atau semata-mata man/computer control (from control station dibumi) untuk mengelakan collision atau dah diplotkan route dia awal-awal sebelum launched???
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Post time 13-2-2009 03:04 PM | Show all posts

Reply #3 Canaletto's post

setahu aku aku laluan memang dah di plot awal2 n bergantung dgn keupayaan satelit itu sendiri ketinggian mana nak diletakkan dia, perubahan laluan boleh dilaksanakan tapi sikit sangatler perubahan laluan coz bahanapi yang dibawa utk thruster dia amatler sikit, aku x percaya pe;langgaran ini secara x sengaja coz laluan satelit dah dipersetujui n dikawal oleh pusat satelit bumi... kill a threat with a simple way, he3
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 Author| Post time 13-2-2009 03:08 PM | Show all posts
Originally posted by Canaletto at 13-2-2009 02:57 PM
Soalan bodoh...in orbit ni ada highway ke untuk semua satelit ikut atau semata-mata man/computer control (from control station dibumi) untuk mengelakan collision atau dah diplotkan route dia awal ...


U.S. and Russia track satellite crash debrisBy Guy FaulconbridgePosted 2009/02/12 at 8:47 am EST
MOSCOW, Feb. 12, 2009 (Reuters)
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 Author| Post time 13-2-2009 03:10 PM | Show all posts

Reply #4 venez's post

aku rasa, russia n US tak ngam bab plotted track.... masing2 ade interest.
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Post time 13-2-2009 03:12 PM | Show all posts
Bermakna exisiting satelit yg berada diangkasa sememangnya telah diplotkan dan perlu ke mana-mana negara yg bakal launch satelit mendapat koordinat satelit negara yg lain terlebih dahulu bagi mengelakan collision???

Thruster ni untuk membetulkan plot & kedudukan satelit sekiranya tergelinicir atau ada fungsi yg lain contoh nya...untuk tujuan "ramming" satelit negara lain???
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 Author| Post time 13-2-2009 03:19 PM | Show all posts

Reply #7 Canaletto's post

untuk komersial, yes, untuk military, kuasa2 besar macam rusia, boleh lah say no...

dulu wa penah tengok satu dokumentari pasal US JOSC, orbit setting dibuat sebelum pelancaran, kalau allignment lari, thruster tu main peranan. Ramming tu cerita lain, hidden agenda kot.
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Post time 13-2-2009 03:22 PM | Show all posts
ok, roger that Bai!
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 Author| Post time 13-2-2009 03:27 PM | Show all posts
Type Irridium nih kalau tak silap, saiz dia kecik lebih kurang razaksat(comm satellite).

[ Last edited by  tangopapa at 13-2-2009 03:36 PM ]
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 Author| Post time 13-2-2009 03:39 PM | Show all posts

In an unprecedented space collision, a commercialIridium communications satellite (IRIDIUM 33, NORAD ID 24946) and adefunct Russian satellite (COSMOS 2251, NORAD ID 22675) ran into eachother on February 10, 2009 above Northern Siberia, creating a cloud ofdebris. The impact occured at 16:56:00 UTC (11:56:00 AM EST), atLatitude 72
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Post time 13-2-2009 03:44 PM | Show all posts
setiap satelit akan orbit bumi pada ketinggian tertentu bergantung kepada jenis satelit dan penggunaan..dua2 satelit yg crash ni tak silap wa orbit dlm 790km dari bumi..tp wa bace other article kata russian satelit tu non military comm punyer sat..tatau ar
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 Author| Post time 13-2-2009 04:00 PM | Show all posts

Reply #12 innocentti's post

yang wa faham, satelit rusia tu defunction, mungkin tunggu jatuh kot...
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Post time 13-2-2009 08:36 PM | Show all posts
Originally posted by venez at 13-2-2009 03:04 PM
setahu aku aku laluan memang dah di plot awal2 n bergantung dgn keupayaan satelit itu sendiri ketinggian mana nak diletakkan dia, perubahan laluan boleh dilaksanakan tapi sikit sangatler perubaha ...

salah satu plot CIA tak? perancangan peringkat tertinggi nak uji tindakan putin....
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Post time 14-2-2009 08:23 AM | Show all posts
Sape2 pakai Iridium satphone takde line le...hahaha
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Post time 15-2-2009 01:27 AM | Show all posts
wa rasa Rusia mau tunjuk yg dia boleh hentam mana2 satelit US pada sebilang masa.

modus operandi senjata anti satelit Rusia mmg memusnahkan satelit musuh dgn melanggar.

tapi satelit pengintip US dikatakan ada ciri2 stealth dan disaluti RAM disamping dilengkapi dgn enjin thrusters untuk mengubah orbitnya pada sebilang masa.


Cosmos 2251, a Strela 2M communications satellite




Iridium 33. it weigh around 750kg which made it a full sized satellite.






The original company went bankrupt in 1999 but was later salvaged by a group of private investors.

The system is being used extensively by the U.S. Department of Defense through the DoD gateway in Hawaii. The DoD pays $36 million a year for unlimited access for up to 20,000 users. An investigation was begun into the DoD contract after a protest by Globalstar, to the U.S. General Accounting Office that no tender was provided. The investigation was suspended at the request of the Pentagon, who cited national security reasons.- Wikipedia


the collision of the two satellites. The paths intersected at nearly 90 degrees! nearly a million to one shot...





make your own conclusions
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Post time 15-2-2009 08:39 AM | Show all posts

Reply #16 tin's post

Intercept vector?
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Post time 15-2-2009 09:21 AM | Show all posts

Balas #17 alphawolf\ catat

yup, me thinks so...

it seems that the US have feared that something like this may happen.

[quote]Although the concept of a new treaty has support among some arms-control advocates, the Bush administration has categorically rejected the idea, concerned about limitations on U.S. access to, and use of, space. There are also worries about treaty language such as the definition of the phrase 搒pace weapon
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Post time 15-2-2009 12:47 PM | Show all posts
Baca balik keratan akhbar tu...pelik pulak Pentagon kata 'nahas angkasa paling besar'.....Challenger dengan Columbia tu apa? Atau sebab itu NASA, bukan Pentagon punya, atau kedua2 tu meletup dalam atmosfera Bumi?
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Post time 15-2-2009 01:53 PM | Show all posts

Balas #19 alphawolf\ catat

me thinks its the last reason.
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