Author Topic: Proton-M/Briz-M – Kosmos-2520 (Blagovest № 11L) – August 16, 2017 (22:07 UTC)  (Read 13927 times)

Offline Artyom.

Spacecraft successfully separated https://www.roscosmos.ru/23918/
"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline Artyom.

"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline Steven Pietrobon

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According to Interfax, Briz-M successfully put the satellite in planned orbit:

http://www.interfax.ru/russia/575203

"With the spacecraft is installed and maintained stable telemetric communications. The satellite's on-board systems are operating normally, said the Defense Ministry. "After taking on space management unit has been assigned the ordinal" Kosmos-2520, "noted the military Department."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Satori

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Many imagens available at https://www.roscosmos.ru/23918/

Offline Alter Sachse

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https://www.roscosmos.ru/23918/
It was the 100th Proton-M and the 414th Proton launch since 1965.
In my list the 413. launch.
Roskosmos counts possibly the accident of the 14.07.1968.
« Last Edit: 08/17/2017 10:19 AM by Alter Sachse »

Offline Artyom.

"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline anik

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https://www.roscosmos.ru/23918/
It was the 100th Proton-M and the 414th Proton launch since 1965.
In my list the 413. launch.
Roskosmos counts possibly the accident of the 14.07.1968.

8K82 - 4 orbital launches
8K82K - 310 launches (309 orbital and 1 suborbital)
8K82KM - 100 orbital launches

Offline Alter Sachse

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https://www.roscosmos.ru/23918/
It was the 100th Proton-M and the 414th Proton launch since 1965.
In my list the 413. launch.
Roskosmos counts possibly the accident of the 14.07.1968.

8K82 - 4 orbital launches
8K82K - 310 launches (309 orbital and 1 suborbital)
8K82KM - 100 orbital launches
Thank you !
I have not counted a launch in 2014 - my mistake..

Offline edkyle99

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Nice angle of the liftoff from the video.

 - Ed Kyle

Offline jcm

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DTB tank cataloged as 42908 in 399 x 35698 km x 48.6 deg transfer orbit. Suggests a 4 burn launch profile.
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Alter Sachse

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I miss the exact launch time, serial numbers and satellite launch weight.

Offline input~2

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http://www.iss-reshetnev.com/media/news/news-180817

Blagovest reaches intended orbit

ISS-Reshetnev Company’s new telecommunications satellite, Blagovest, which was launched on August 17 has finally arrived at its position at the geostationary orbit.

Upon arrival at the intended orbit, Blagovest’s mechanical systems, including its solar arrays and antennas, were successfully deployed. The satellite completed Sun acquisition and transmits all the necessary telemetry to the ground. When the satellite performs Earth acquisition ground specialists will begin checking out the performance of all its systems.

Blagovest №11 was designed and built by ISS-Reshetnev Company around its heavy-class Express-2000 platform. It is the first satellite which is equipped with a payload fully developed and constructed by the company on its own. Blagovest is intended to provide high-speed Internet access, data communications, television and radio broadcasting, telephony and videoconferencing services using increasingly attractive Ka and Q frequency bands.

18.08.2017

Offline edkyle99

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DTB tank cataloged as 42908 in 399 x 35698 km x 48.6 deg transfer orbit. Suggests a 4 burn launch profile.
I thought that the Briz M tank usually separated between the 2nd and 3rd burns during a 4-burn ascent.  Wouldn't that leave the tank with a sub-GEO apogee?

 - Ed Kyle
« Last Edit: 08/18/2017 06:34 PM by edkyle99 »

Offline Stan Black

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DTB tank cataloged as 42908 in 399 x 35698 km x 48.6 deg transfer orbit. Suggests a 4 burn launch profile.
I thought that the Briz M tank usually separated between the 2nd and 3rd burns during a 4-burn ascent.  Wouldn't that leave the tank with a sub-GEO apogee?

 - Ed Kyle

Look at Yamal-401?
http://www.ilslaunch.com/sites/default/files/Yamal-401%20Mission%20Overview%20%28English%29.pdf

Online Phillip Clark

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Apologies but going off-topic here.

Is there an online source which gives the number of Briz-M burns planned for the domestic (non-ILS) missions, please?

Thanks!

Offline input~2

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USSTRATCOM has cataloged 3 objects

2017-046A/42907 in 35508 x 35769 km x 0.09° (Cosmos-2520)
2017-046B/42908 in 399 x 35698 km x 48.63° (Briz-M tank)
2017-046C/42909 in 35892 x 41927 km x 0.11° (Briz-M)
« Last Edit: 08/19/2017 03:46 PM by input~2 »

Offline Alter Sachse

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I miss the exact launch time, serial numbers and satellite launch weight.
22:06:59.975 according to russianspaceweb.com
http://www.russianspaceweb.com/blagovest.html

Offline anik

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I miss the exact launch time, serial numbers and satellite launch weight.
22:06:59.975 according to russianspaceweb.com
http://www.russianspaceweb.com/blagovest.html

The original source is Novosti kosmonavtiki forum.

Offline hvdh

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Drifting 1.9°E per day, near 60°E now.
Apparently not (yet) aiming for 45°E.

Offline Alter Sachse

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Drifting 1.9°E per day, near 60°E now.
Apparently not (yet) aiming for 45°E.
Then it drifts up to 128° E ?

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