Author Topic: Rokot/Briz-KM with 3xRodnik and Kosmos 2499 satellites - May 23, 2014  (Read 18615 times)

Offline jcm

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The mystery satellite 2014-28E from the May launch has been changing orbit, as was first noted I think by the Novosti Kosmonavtiki folks. It was speculated that it was going to make a rendezvous with the Briz-M stage http://novosti-kosmonavtiki.ru/forum/forum12/topic14232/?PAGEN_1=5.

Over a series of 7 burns from Jul 2 to Aug 8, the object has changed its orbit from 1477 x 1511 km to 1120 x 1490 km.
The Briz-M stage from the same launch is in an 1150 x 1504 km orbit following a depletion burn on the day of launch.

The objects are several degrees apart in orbital plane for now.

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Offline jcm

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Now (Aug 25) after two further perigee lowering burns, 2014-28E is in a 925 x 1487 km orbit.
Perhaps testing a new propulsion system?
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Offline VDD1991

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Your guess is as good as mine. Since none of the previous launches with the Breeze-KM upper stage have produced debris, I have to agree with you that 2014-028E is an-as-yet unannounced experimental satellite (as was case for 2013-076E).

Offline Star One

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Rokot/Briz-KM with Kosmos (3xRodnik) satellites - May 23, 2014
« Reply #23 on: 10/30/2014 05:39 PM »
Article on the mysterious Kosmos 2499 carried on this launch.

http://www.russianspaceweb.com/Cosmos-2499.html
« Last Edit: 10/30/2014 05:39 PM by Star One »

Offline Liss

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They finally met yesterday. From TLEs of doubtful quality and age, minimal distance was within 3 km.
This message reflects my personal opinion based on open sources of information.

Offline Liss

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Answered a reporter -- may use freely.

Quote
First, the object reported by FT does exist and it (she?) indeed performed a series of maneuvers between June and November 2014 to reach its rocket stage, Briz-KM, with possible close flyby on November 9 and a possible close re-approach in the near future. All this is easily seen from evolution of orbital elements for the two available from the USSTRATCOM.

Second, it was not any new in space. A tiny British satellite SNAP-1 attempted such a feat and almost succeeded in the summer of 2000. The U.S. performed such maneuvers at least twice in their DART/MUBLCOM (2005) and  ASTRO/NEXTSAT (2007) missions. China performed at least three such missions, namely Shijian 12 (August and November 2010), Shijan 9 (October 2012) and Shijian 15/Shiyan 7 (since July 2013).

Third, you should check about Russian military space missions with relevant PR offices of the Ministry of Defence and Federal Space Agency. I would not comment on these.
This message reflects my personal opinion based on open sources of information.

Offline input~2

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FT article:
Object 2014-28E Space junk or Russian satellite killer?
http://www.ft.com/cms/s/2/cdd0bdb6-6c27-11e4-990f-00144feabdc0.html#axzz3JQ0OGc2A

Offline input~2

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From UN Office for Outer Space Affairs registration:
International Designator:      [2014-028E]
Name of Space Object:         COSMOS 2499
State/ Organization:             Russian Federation
Date of Launch:                   23/05/2014
UN Registered:                    Yes
Document of Registration:     ST/SG/SER.E/728 
Status:                               in orbit
Function of Space Object:     Intended for assignments on behalf of the Ministry of Defence of the Russian Federation
Remarks:                            The document for this regsitration submission is presently being processed by the United Nations Secretariat.

Offline russianhalo117

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BUMP:
Kosmos 2499 Payload Started Morse Code Transmissions of TLM on Sunday:

November 25 encounter, new moves, transmissions

The mysterious Kosmos-2499 made another close pass near Briz-KM on November 25, 2014. The subsequent modeling of the pair's motion by Russian observers based on available orbital elements data indicated that Kosmos-2499 had come within 526 meters from Briz-KM at a relative speed of just 0.064 meters per second at 05:54 Moscow Time. The spacecraft spent most of the day maneuvering at a distance from a half a kilometer to one kilometer from its target.

After several days of orbiting the Earth at an average altitude from 20 to 30 meters below Briz-KM, Kosmos-2499 climbed few dozen of meters above the stage on November 29, 2014, estimates showed. A day later, to the surprise and delight of the amateur radio enthusiasts around the world, the mystery satellite started transmitting telemetry in Morse code under a call sign RS-47, a Russian amateur radio enthusiast Dmitry Pashkov reported. (Pashkov first detected mysterious signals that he had eventually traced to Kosmos-2499 in the summer of 2014.)

R4UAB: COSMOS 2499 (2014-028E) 2014.11.20 18:54 UTC


This radio-signature was typical of all satellites based on the Yubileiny platform -- another evidence of the similarity between Kosmos-2499 and its potential civilian cousins.

What makes it move?

A relatively small size of the mysterious Kosmos-2499 satellite combined with a great deal of its maneuvering in orbit made some observers wonder about the type of the propulsion system employed in the mission. Unsubstantiated claims were made on the Internet that the spacecraft could carry some super-efficient ion engines to perform its complex orbital dance.

According to estimates, all the maneuvers by Kosmos-2499 that have been detected from the ground over a six-month period resulted in an estimated velocity change (or delta V) totaling 190 meters per second. Assuming that the spacecraft had a mass of around 50 kilograms, like its potential civilian cousin, Yubileiny satellite, and the specific impulse of its engine was around 300 seconds, almost half of its "content" would have to be propellant, one observer of the mission on the online forum of the Novosti Kosmonavtiki magazine estimated. However with a specific impulse of 2,100 meters per second only 10 percent of its mass would have to be dedicated to propellant, Igor Lisov, the editor at Novosti Kosmonavtiki estimated.

Most importantly, short-duration maneuvers reaching 30 meters per second separated by hours of passive flight observed during the flight of Kosmos-2499 betray the action of a traditional liquid propellant engine onboard the spacecraft, rather than the work of ion-electric engines, which produce low but continuous thrust. As a result, Kosmos-2499 likely made its spectacular performance with traditional rocket engines, Lisov said.

LINKS (Related to this Targeting Platform):
http://russianspaceweb.com/Cosmos-2499.html#1125
http://russianspaceweb.com/naryad.html
http://russianspaceweb.com/yubileiny.html

« Last Edit: 12/02/2014 05:39 PM by russianhalo117 »

Offline russianhalo117

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BUMP:
Kosmos 2499 Payload Started Morse Code Transmissions of TLM on Sunday:

November 25 encounter, new moves, transmissions

The mysterious Kosmos-2499 made another close pass near Briz-KM on November 25, 2014. The subsequent modeling of the pair's motion by Russian observers based on available orbital elements data indicated that Kosmos-2499 had come within 526 meters from Briz-KM at a relative speed of just 0.064 meters per second at 05:54 Moscow Time. The spacecraft spent most of the day maneuvering at a distance from a half a kilometer to one kilometer from its target.

After several days of orbiting the Earth at an average altitude from 20 to 30 meters below Briz-KM, Kosmos-2499 climbed few dozen of meters above the stage on November 29, 2014, estimates showed. A day later, to the surprise and delight of the amateur radio enthusiasts around the world, the mystery satellite started transmitting telemetry in Morse code under a call sign RS-47, a Russian amateur radio enthusiast Dmitry Pashkov reported. (Pashkov first detected mysterious signals that he had eventually traced to Kosmos-2499 in the summer of 2014.)

R4UAB: COSMOS 2499 (2014-028E) 2014.11.20 18:54 UTC


This radio-signature was typical of all satellites based on the Yubileiny platform -- another evidence of the similarity between Kosmos-2499 and its potential civilian cousins.

What makes it move?

A relatively small size of the mysterious Kosmos-2499 satellite combined with a great deal of its maneuvering in orbit made some observers wonder about the type of the propulsion system employed in the mission. Unsubstantiated claims were made on the Internet that the spacecraft could carry some super-efficient ion engines to perform its complex orbital dance.

According to estimates, all the maneuvers by Kosmos-2499 that have been detected from the ground over a six-month period resulted in an estimated velocity change (or delta V) totaling 190 meters per second. Assuming that the spacecraft had a mass of around 50 kilograms, like its potential civilian cousin, Yubileiny satellite, and the specific impulse of its engine was around 300 seconds, almost half of its "content" would have to be propellant, one observer of the mission on the online forum of the Novosti Kosmonavtiki magazine estimated. However with a specific impulse of 2,100 meters per second only 10 percent of its mass would have to be dedicated to propellant, Igor Lisov, the editor at Novosti Kosmonavtiki estimated.

Most importantly, short-duration maneuvers reaching 30 meters per second separated by hours of passive flight observed during the flight of Kosmos-2499 betray the action of a traditional liquid propellant engine onboard the spacecraft, rather than the work of ion-electric engines, which produce low but continuous thrust. As a result, Kosmos-2499 likely made its spectacular performance with traditional rocket engines, Lisov said.

LINKS (Related to this Targeting Platform):
http://russianspaceweb.com/Cosmos-2499.html#1125
http://russianspaceweb.com/naryad.html
http://russianspaceweb.com/yubileiny.html
And Kosmos-2491 the day after:

Offline B. Hendrickx

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Roskosmos chief Oleg Ostapenko denied today that Kosmos-2491 and Kosmos-2499 are "killer satellites" or have any relation to the country's military space program. He described them as scientific satellites in a joint effort between Roskosmos and the Russian Academy of Sciences and added that they have completed their intended flight programs. Ostapenko also said that in November Russia submitted a document to the UN forbidding the deployment of weapons in space and doing something that would violate that initiative "would be incorrect".

http://itar-tass.com/kosmos/1647008
http://rusnovosti.ru/news/357447/


Offline jcm

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Roskosmos chief Oleg Ostapenko denied today that Kosmos-2491 and Kosmos-2499 are "killer satellites" or have any relation to the country's military space program. He described them as scientific satellites in a joint effort between Roskosmos and the Russian Academy of Sciences and added that they have completed their intended flight programs. Ostapenko also said that in November Russia submitted a document to the UN forbidding the deployment of weapons in space and doing something that would violate that initiative "would be incorrect".

http://itar-tass.com/kosmos/1647008
http://rusnovosti.ru/news/357447/



Would be more convincing if he described the scientific instruments or even specified some general scientific subject area that they are designed for...
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Offline anik

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Would be more convincing if he described the scientific instruments or even specified some general scientific subject area that they are designed for...

Jonathan, the problem is that he does not know what he was asked about and does not know what he is talking about.

Offline Skyrocket

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Roskosmos chief Oleg Ostapenko denied today that Kosmos-2491 and Kosmos-2499 are "killer satellites" or have any relation to the country's military space program. He described them as scientific satellites in a joint effort between Roskosmos and the Russian Academy of Sciences and added that they have completed their intended flight programs. Ostapenko also said that in November Russia submitted a document to the UN forbidding the deployment of weapons in space and doing something that would violate that initiative "would be incorrect".

http://itar-tass.com/kosmos/1647008
http://rusnovosti.ru/news/357447/



Would be more convincing if he described the scientific instruments or even specified some general scientific subject area that they are designed for...


Likely the Russian equivalents to the US XSS-11 satellite, for which also allegations to be a "killer satellite" circulated in the media.

Offline Stan Black

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So why give them Kosmos names?

Offline aga

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Tags: breeze-km r/b