အေမရိကန္တို႔ စိုးရိမ္ထိပ္လန္ ့ေနရတဲ့
႐ု႐ွား ၿဂိဳဟ္တု ၃စင္းဆိုတာ ဘာလဲ?
➖➖➖➖➖➖➖➖➖➖➖➖

လြန္ခဲ့တဲ့ ၃ရက္က ကြၽန္ေတာ္ေရးခဲ့ဖူးတဲ့ အေမရိကန္
တို႔စိုးရိမ္ထိပ္လန္႔ေနရတဲ့ ႐ု႐ွားၿဂိဳဟ္တုနဲ႔ ပတ္သက္တဲ့
အေသးစိတ္ အခ်က္အလက္ေတြ ထြက္ေပၚလာခဲ့ပါ
တယ္။

ကမၻာ့ႏိုင္ငံအသီးသီးက လႊတ္တင္ေနၾကတဲ့ ၿဂိဳဟ္တု
အသီးသီးရဲ႕ အခ်က္အလက္ေတြကို ကုလသမဂၢ
သက္ဆိုင္ရာအဖြဲ႔ျဖစ္တဲ့ United Nations Office for Outer Space Affairs (UNOOSA) ကိုေပးပို႔ၿပီး
မွတ္ပံုတင္ရပါတယ္။

ဒါေၾကာင့္ အေမရိကန္တို႔ဟာ မၾကာေသးခင္က
ဆြစ္ဇာလန္မွာက်င္းပခဲ့တဲ့ ကုလသမဂၢ လက္နက္
ဖ်က္သိမ္းေရးညီလာခံမွာ ႐ု႐ွားဟာ အာကာသထဲမွာ
မသကၤာဖြယ္ရာ ၿဂိဳဟ္တုက စစ္ေရးလက္နက္စမ္းသတ္
ေနတယ္လို႔ ယူဆရေၾကာင္း အေမရိကန္လက္နက္
ကြၽမ္းက်င္ပညာ႐ွင္ Yleem Poblete က ေၾကာက္ရြံ ့
ထိပ္လန္႔မႈကို မထိန္းသိမ္းႏိုင္ပဲ ထုတ္ေဖာ္ေျပာၾကားခဲ့ပါတယ္။

ျဖစ္စဥ္မွာ ၂၀၁၇ခုႏွစ္ ဇြန္လ၂၃ရက္ေန႔က ႐ု႐ွားႏိုင္ငံ
ေျမာက္ပိုင္းPlesetsk အာကာသစခန္းကေန မိခင္
ၿဂိဳဟ္တု Kosmos 2519,ကိုလႊတ္တင္ခဲ့ပါတယ္။
တဆက္တည္းမွာ ၿဂိဳဟ္တုအေသးစားႏွစ္လံုးျဖစ္တဲ့
Kosmos 2521 and 2523 တို႔ကိုလည္း လႊတ္တင္
ခဲ့ပါတယ္။ဒါကို ႐ု႐ွားကာကြယ္ေရးဝန္ႀကီး႒ာနက
"small space apparatus," အျဖစ္တရားဝင္
ေၾကညာခဲ့ၿပီးျဖစ္ပါတယ္။

ဒါေပမယ့္ ဒီၿဂိဳဟ္တု၃လံုးဟာ ကမၻၻာပတ္လမ္းေၾကာင္းထဲေရာက္႐ွိၿပီးခ်ိန္မွာ အလြန္ထူးျခားဆန္းျပားတဲ့
ပံုမွန္မဟုတ္တဲ့ အျပဳအမူေတြျပဳလုပ္ခဲ့ၾကပါတယ္။

ၿဂိဳဟ္တုတစ္လံုးဟာပံုမွန္အားျဖင့္ ကမၻာပတ္လမ္း
ေၾကာင္းထဲမွာ လည္ပတ္ေနစဥ္မွာ အေမရိကန္
Astrophysics (နကၡတၱ႐ူပေဗဒ)ပညာ႐ွင္ေတြက
သခ်ၤာနည္းနဲ႔တြက္ခ်က္ ေျခရာခံၿပီးလိုက္ၾကည့္ႏိုင္ပါ
တယ္။
ဒါေပမယ့္ ႐ု႐ွားၿဂိဳဟ္တု ၃လံုးဟာ မိခင္ၿဂိဳဟ္တု
Kosmos 2519 ကို ဗဟိုျပဳၿပီး ပူးလိုက္ ခြာလိုက္လုပ္
ေနခဲ့ပါတယ္။ ၿဂိဳဟ္တုႏွစ္လံုးပူးလိုက္ သံုးလံုးပူးလိုက္
ၿပီးေတာ့ ျပန္ခြာသြားလိုက္ လုပ္စဥ္မွာ တြန္းကန္မႈ
ေၾကာင့္ ၿဂိဳဟ္တုေတြရဲ႕လမ္းေၾကာင္းဟာ ပံုမွန္လမ္း
ေၾကာင္းေပၚက ေသြဖည္ေျပာင္းလဲသြားၾကပါတယ္။

ဒီ orbit changes, proximity operations ကို
ေျမျပင္က ထိန္းခ်ဳပ္ထားတယ္လို႔ယူဆရၿပီး ဒီၿဂိဳဟ္တု
ေတြကို ဘယ္လိုစြမ္းအင္အသံုးျပဳေမာင္းႏွင္ေနတယ္
ဆိုတာကိုလည္း အေမရိကန္တို႔ နားမလည္ႏိုင္ေသး
ေၾကာင္းကို Harvard-Smithsonian Center for Astrophysics မွ အာကာသ နကၡတၱေဗဒပညာ႐ွင္
Jonathan McDowell ကဆိုပါတယ္။

ဒါ့ျပင္ ႐ု႐ွားစစ္ဖက္ၿဂိဳဟ္တုေတြရဲ႕ လႈပ္႐ွားကစားမႈ
ကို ေျခရာခံလိုက္ႏိုင္စြမ္းမ႐ွိတဲ့အတြက္ အာကာသ
ထဲမွာ ႐ု႐ွားၿဂိဳဟ္တုေတြကို ႐ွာေဖြေတြ႔႐ွိႏိုင္စြမ္းမ႐ွိ
ေတာ့ေၾကာင္း သိရပါတယ္။

ယခုလထဲမွာ အေမရိကန္သမၼတ ေဒၚနယ္ထရမ့္က
အေမရိကန္အာကာသတပ္ဖြဲ႔ (Space Force) ဖြဲ႔စည္း
ဖို႔ Lobbying လုပ္ေနဆဲကာလမွာ ႐ု႐ွားၿဂိဳဟ္တုေတြ
က အာကာသထဲမွာ ထူးျခားဆန္းျပားေသာ လႈပ္႐ွားမႈေတြကို လုပ္ျပခဲ့တဲ့အတြက္ အေမရိကန္တို႔ အေနနဲ႔
ႀကိတ္မႏိုင္ခဲမရ စိုးရိမ္ေသာကေရာက္ေနရေၾကာင္း
သိရပါတယ္ဗ်ာ။

‘What Are They Complaining About?’ Experts Dismiss US Fears of Russian Satellite

17.08.2018(updated 22:38 17.08.2018)

On Tuesday, the US State Department raised alarm at the UN conference on disarmament in Geneva, Switzerland, about a Russian satellite they knew little about. They concluded that this lack of knowledge was both suspicious and threatening, all but saying it was a Russian weapon.

Astronomers, however, don't seem to understand what the big deal is.

"We are concerned with what appears to be very abnormal behavior by a declared ‘space apparatus inspector,'" US Assistant Secretary of State for Arms Control, Verification and Compliance Yleem Poblete told the UN Tuesday. "The only certainty we have is that this system has been ‘placed in orbit… We don't know for certain what it is, and there is no way to verify it."

"Its behavior on-orbit was inconsistent with anything seen before from on-orbit inspection or space situational awareness capabilities, including other Russian inspection satellite activities," she continued.

"This system is certainly puzzling and even unusual," Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, wrote Thursday, "but 'abnormal' seems a bit strong, as the US has flown its own classified satellites which have performed unexplained orbit changes, proximity operations and subsatellite deployments."

The spacecraft in question is actually a trio of vehicles: Kosmos 2519, 2521 and 2523, launched on June 23, 2017, from the Plesetsk Cosmodrome in northern Russia. In orbit, the parent satellite, 2519, deployed 2521 in August 2017, which in turn deployed 2523 in October of that year.

In August 2017, the Russian Ministry of Defense said the "small space apparatus," probably referring to 2521, would be used for "examining the condition of a Russian satellite."

"In the longer term, a research experiment will be carried out to use the space apparatus for examining the outward appearance of that satellite," the ministry said, noting that it will be "a space platform capable of carrying different payloads."

"The space forces proved their ability to ensure the satellite's automatic undocking from the platform, the remote control of its flight and the activation of the satellite payload, including surveillance hardware, data transfer to Earth and data processing," the statement, published in Izvestiya, said.

In October, when 2523 separated from 2521, the ministry further noted that it had tested "controlling the maneuvering defense satellite, ground and orbital communication systems" of the satellite as well as employing "methods involving ballistic estimates and new software." The satellite then returned to its parent.

McDowell noted that both subsatellites conducted a series of maneuvers involving changing their orbits to higher or lower than their parent satellite, including changing from circular to elliptical orbits and back again.

Perhaps the Russians "are checking out the [spacecraft] bus and its capability to deliver multiple subsatellites to different orbits — something like that," McDowell told Space.com Thursday. "From the information that's available in the public domain, that would be an entirely plausible interpretation."

Brian Weeden, director of program planning at the nonprofit Secure World Foundation, noted on Twitter Thursday that the satellites had made "some minor maneuvers and possibly [come] close to another satellite, which is consistent with an inspection role."

In February 2018, Kosmos 2523 "did a significant maneuver" to a different orbit, "but otherwise hasn't appeared to do anything particularly nefarious or suspicious," he went on to note. "It's deployment was unusual, but hard to see at this point why the US is making it a big deal."

https://sputniknews.com/military/201808171067284881-Experts-Dismiss-US-Fears-Russian-Satellite/

State Department Official Suspects Russia May Have an Unknown Space Weapon

https://foxtrotalpha.jalopnik.com/state-department-official-suspects-russia-may-have-an-1828342986

United Nations Register of Objects Launched into Outer Space

http://www.unoosa.org/oosa/en/spaceobjectregister/index.html
(United Nations Office for
Outer Space Affairs)
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