Author Topic: LIVE: Proton-M/Briz-M - EchoStar XXI - June 8, 2017 (03:45 UTC)  (Read 39527 times)

Offline russianhalo117

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Re: Proton-M/Briz-M - EchoStar XXI - NET February 6, 2017
« Reply #40 on: 01/25/2017 01:22 AM »
Even if this delay won't stop, will EchoStar still want EchoStar 21 to be launched atop Proton?

I ask that because they tend to change launch vehicles if the delay is too much. What if they ask ULA to use one of their Atlas Vs in the near future?
Its possible, but it becomes more difficult to transport a previously fueled spacecraft as some cargo airlines do not allow spacecraft matching those circumstances or it become costly and restrictive to do so.

Remind me: how long has EchoStar 21 been fueled?
Preparations for fueling started on November 27, 2016 and fuel loading was completed on December 14, 2016.

I understand that the hydrazine monopropellants are storable, meaning it can stay in the tanks for many years, but just in case of corrosion, how long will it be until they empty the tanks?
I'm unable to answer that question for a particular spacecraft however Jim and others can provide insight on the general average for comsats.

Offline eeergo

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Re: Proton-M/Briz-M - EchoStar XXI - NET February 6, 2017
« Reply #41 on: 01/25/2017 09:17 AM »
Anatoly Zak reporting major quality control issues (replacement of heat-resistant alloys with lower-quality ones in key engine parts) as being a possible contributing factor to Proton's and Soyuz's woes:

http://www.russianspaceweb.com/proton_2017.html

Linked to Phase IV improvements or just irregular practice?
-DaviD-

Offline Satori

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Re: Proton-M/Briz-M - EchoStar XXI - June-July 2017
« Reply #42 on: 01/25/2017 12:08 PM »
According to NK forum, launch won't take place before June-July.

Offline Alter Sachse

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Re: Proton-M/Briz-M - EchoStar XXI - June-July 2017
« Reply #43 on: 01/25/2017 02:25 PM »
According to NK forum, launch won't take place before June-July.
Original planning (Plan of Russian space launches part 2 reply #793)
2016 June 25 - EchoStar-XXI - Proton-M/Briz-M - Baikonur
2016 !!

Online ZachS09

Re: Proton-M/Briz-M - EchoStar XXI - NET June-July 2017
« Reply #44 on: 01/25/2017 03:20 PM »
Have they already figured out why the second stage shut down early during Intelsat 31/DLA-2?

I'm wondering if that's another reason of the long delay besides the first stage swap.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline input~2

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Re: Proton-M/Briz-M - EchoStar XXI - early April 2017
« Reply #45 on: 02/04/2017 07:19 AM »
Launch now planned for beginning of April
http://tass.ru/kosmos/3993709

Offline Stan Black

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Re: Proton-M/Briz-M - EchoStar XXI - Early April 2017
« Reply #46 on: 03/10/2017 08:36 AM »
Searching around the ILS web site, I found this web page here:
http://www.ilslaunch.com/node/4713

From there, I found a draft mission overview here, dated November 15:
http://www.ilslaunch.com/sites/default/files/pdf/EchoStarXXI-MO-DRAFT.pdf

The launch schedule thread has this mission launching December 22.

I'll be interested to hear about the conclusions of the commission investigating the performance shortfall of the previous Proton launch's second stage and the actions to fix the issue.

Also, I'm wondering when the satellite will be delivered to Baikonur.


It has now been updated. The ‘satellite mission’ section was blank in the draft version.
http://www.ilslaunch.com/sites/default/files/pdf/EchoStarXXI-MO.pdf

Another revision, with mass now 6,900 kg.

Offline Alter Sachse

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Offline EgorBotts

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Re: Proton-M/Briz-M - EchoStar XXI - Early April 2017
« Reply #48 on: 03/27/2017 08:10 AM »
Interfax news seems to place the launch into a late may-june target!

(article in russian)
http://www.interfax.ru/world/555411

Offline B. Hendrickx

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Re: Proton-M/Briz-M - EchoStar XXI - Early April 2017
« Reply #49 on: 03/31/2017 08:10 PM »
http://tass.com/science/938730

Quote
Russia’s Proton-M carrier rocket first launch scheduled for May

MOSCOW, March 31. /TASS/. The first launch of Russia’s Proton-M carrier rocket this year is scheduled for the end of May, Chief Designer for Launch Vehicles and Ground Infrastructure Alexander Medvedev said on Friday.
"The first launch is planned for the end of May," the chief designer said.

The launch of an EchoStar 21 spacecraft was planned back last year but was delayed over problems found in the engines of a Proton-M carrier rocket.

A total of seven Proton carrier rocket launches are planned until the end of this year under the federal space program and in the interests of commercial customers.

Russia’s State Space Corporation Roscosmos earlier recalled for tests all the engines mounted on the second and the third stages of Proton-M carrier rockets and produced at the Voronezh Mechanical Factory.
According to Roscosmos, a more expensive solder failing to meet the requirements specification was used by the factory as part of the engine production.

Roscosmos also gave instructions to replace the engines produced by this factory and mounted on the third stages of Soyuz-U and Soyuz-FG carrier rockets intended for launches to the International Space Station. The engines had to be replaced after an accident with a Soyuz-U carrier rocket on December 1, 2016, which resulted in the crash of a Progress MS-04 space freighter.

After Roscosmos officials visited the Voronezh Mechanical Factory on January 20, Factory Director Ivan Koptev resigned of his own free will over the unsatisfactory work and quality of the enterprise’s output.

Offline B. Hendrickx

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Re: Proton-M/Briz-M - EchoStar XXI - May 2017
« Reply #50 on: 04/05/2017 07:05 AM »

http://tass.com/science/939427

Quote
NEW YORK, April 5. /TASS/. The next launch of the Proton-M carrier rocket is scheduled to take place on May 29, Roscosmos spokesman Igor Burenkov told TASS by phone from Colorado Springs, where he is taking part in a space conference.

"The works proceed according to the schedule," he said. ‘We plan to carry out the first launch of Proton on May 29, to put a US satellite into orbit."

Commenting on the recall of the Proton engines, the official described it as an "unprecedented matter."
"We stick to the policy of transparency," he said. "It’s not about certain flaws found in those engines. We simply had some concerns that some of them may be flawed," he said.

The Russian version of the TASS report says a total of seven Proton launches are planned for this year, both for Roscosmos and for commercial customers.



Online Phillip Clark

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Re: Proton-M/Briz-M - EchoStar XXI - May 2017
« Reply #51 on: 04/05/2017 07:17 AM »
http://tass.com/science/939427
Quote
NEW YORK, April 5. /TASS/. The next launch of the Proton-M carrier rocket is scheduled to take place on May 29, Roscosmos spokesman Igor Burenkov told TASS by phone from Colorado Springs, where he is taking part in a space conference.
"The works proceed according to the schedule," he said. ‘We plan to carry out the first launch of Proton on May 29, to put a US satellite into orbit."
Commenting on the recall of the Proton engines, the official described it as an "unprecedented matter."
"We stick to the policy of transparency," he said. "It’s not about certain flaws found in those engines. We simply had some concerns that some of them may be flawed," he said.
The Russian version of the TASS report says a total of seven Proton launches are planned for this year, both for Roscosmos and for commercial customers.

I note that they say "May 29" without specifying the year ..............

Offline Salo

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Offline FutureSpaceTourist

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #53 on: 04/28/2017 07:03 PM »
Quote
On track for launch: LV for the EchoStar XXI mission on its way to Baikonur its launch in May. @EchoStar, @sslmda, @ilslaunch, #EchoStarXXI

https://twitter.com/krosemonaghan/status/858001534415720452

Offline FutureSpaceTourist

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #54 on: 05/06/2017 06:39 PM »
Quote
The train w/EchoStar XXI LV arrived in Baikonur at 2:10 pm today for the integration of the LV w/ the SC. #EchoStarXXI, @EchoStar, @sslmda

https://twitter.com/ilslaunch/status/860920867479592960

Offline FutureSpaceTourist

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #55 on: 05/08/2017 02:17 PM »
Quote
Photos of the @EchoStar XXI launch vehicle arriving at the #Baikonur #Cosmodrome over the weekend. @sslmda #rocket

https://twitter.com/ilslaunch/status/861583387169099776

Offline russianhalo117

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #56 on: 05/08/2017 09:30 PM »
Quote
On track for launch: LV for the EchoStar XXI mission on its way to Baikonur its launch in May. @EchoStar, @sslmda, @ilslaunch, #EchoStarXXI

https://twitter.com/krosemonaghan/status/858001534415720452
the linked picture is transport containers of Angara family not Proton

Offline Danderman

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #57 on: 05/09/2017 04:14 AM »
The earlier photos showed rail containers that were painted green, so either the containers in Baikonur have rusted out, or they are different.

Offline FutureSpaceTourist

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Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #58 on: 05/14/2017 02:21 PM »
Quote
Moving forward: The Breeze M engine was moved to the fueling area today in Baikonur in prep for the @EchoStar XXI launch this month. @sslmda

https://twitter.com/ilslaunch/status/863758215980494848

Online Galactic Penguin SST

Re: Proton-M/Briz-M - EchoStar XXI - May 29, 2017
« Reply #59 on: 05/15/2017 05:05 PM »
Hmm.......looking at posts from people involved in the Proton on NK it seems that the May 29 date was already long out of of the window as the team is slow to pick up work - current pointers are at around June 6-15 but even that might not stick.  ::)

http://novosti-kosmonavtiki.ru/forum/messages/forum14/topic14042/message1645421/#message1645421
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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