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@Space_Station The document and the graphics omitted @Roscosmos' Prichal Node Module! -> https://t.co/POnJDGiASU
"ESA is proud to be a partner of @NASA, @roscosmos, @JAXA_en and @csa_asc on the @Space_Station. I welcome this announcement and will submit a proposal to Member States for @esa to continue until 2030, as well," says ESA Director General @AschbacherJosef. https://t.co/zX1Hvf3fks
My now traditional year-end "chessboard" with small fraction of art preserving for future generations achievements and dreams in space in 2021, made exclusively for https://t.co/5Uo4JA9Xcu. You are welcome @Roscosmos. HAPPY NEW YEAR! MORE: https://t.co/9NwsUeA3qd https://t.co/JstTm4FYag
My little rant on the year-end results and gas-lighting from @Roscosmos we are increasingly experiencing... along with 2021 launch chronology, a score card, top stories and more (as we did every year in this century): https://t.co/5pwTamiboJ https://t.co/laBtHil9bc
@TimberMpol They did relatively OK recently: https://t.co/qtKsFHfemX
Investigative commission was formed within Russian space industry to look into Monday's failure of #Angara's upper stage: https://t.co/KZE3WlnXSu https://t.co/JHSOBoXLFN
The stranded Persei stage from Monday's Angara launch is estimated to fall back to Earth uncontrollably within a timeframe from a week to a month, according to different estimates. DETAILS: https://t.co/Ik7eH8tXxu https://t.co/82hx1UYEgl
@Alexphysics13 this is how interface between oxygen and kerosene tanks looks on Zenit's first stage: https://t.co/rYQhHyjEc2
@hydrocarbonjack I think it could operate in parallel carrying heavier payloads than those flying on Briz-M or Persei.
@Alexphysics13 Ukrainians certainly do (think of Zenit), but so far, common bulkheads had not been implemented on Angara's stages...
@pac2114 No, this is an entirely new upper stage...
In turn, the KVTK upper stage is designed to boost the performance of the #Angara-5 rocket: https://t.co/fOp97APJUa https://t.co/VYzEec0rvS
RD-0146D1 is intended for the KVTK space tug: https://t.co/LVufnAyhr2
#Russia fires a new variant of a hydrogen engine. The D1 variant derives from the RD-0146 series: https://t.co/XDGiNAbAzN https://t.co/IRnEYVVGlR
@Saranac_89 Shouldn’t be a major problem, imho.
@DrewBrackett2 I think it is officially in testing for around 10 flights but when it will carry a real payload is a question: https://t.co/jaf1hn0JWB
@space_JeffS Yes: https://t.co/wgy06ffH28
Specialists received plenty of telemetry on the botched operation of the Persei upper stage in yesterday's Angara mission, including data via a relay satellite (when vehicle was out of range of ground stations). DETAILS: https://t.co/KZE3Wl6mtU https://t.co/TUwnEn4Ttg
@UniverseStoy I doubt it.
Source: There is no chance for continuing the Angara's test flight beyond the initial low orbit due to the main engine failure on the Persei space tug. DETAILS: https://t.co/KZE3Wl6mtU https://t.co/oZH1BGCsH0
@JadeHelmer @planet4589 It was a mass simulator, like in two previous missions: https://t.co/yFPl9kQXLl
On the bright side, all URM-1 and 2 booster stages of the Angara rocket appeared to work well (for the 4th time) and no real satellite was lost in a purported Persei failure. I guess this is one of those "that's why they test": https://t.co/dGQQxlNrsE https://t.co/rUSH3qYqCG
@Karl_kave Obviously.
@JadeHelmer @planet4589 Generally yes, and with the stage of this size there is a chance of some debris reaching the ground. Its parking orbit (usually near circular) might still have a perigee over the ocean, but at this point, we don't know its actual parameters.
@brickmack No necessarily. There was a 6-year gap between Angara's Flight 1 and 2 and only one year between 2 and 3. A technical problem with a new variant of the upper stage should not be a major "show-stopper."
@KolyaRice @planet4589 I afraid it is not technically possible, because such missions usually fly a pre-programmed sequence and can not receive commands from the ground. Flight control system should correct the situation autonomously, or it is all over.
According to a reliable report on the Russian Novosti Kosmonavtiki forum, Persei upper stage in today's Angara mission failed to perform its 2nd of three firings, which means that it is left stranded in a low parking orbit with a short life span unless engine is restarted...
...and nice views of fresh Angara-5, apparently shortly before liftoff tonight, courtesy @Roscosmos chief @Rogozin: https://t.co/rIvovDvQxN
Angara-5/Persei mission has around 6.5-hour flight scenario to reach its target near-geostationary orbit, so we will need some patience!
CONFIRMED! Thanks to an unofficial poster on the Novosti Kosmonavtiki forum.
With #Soyuz mission completed, all attention is on Plesetsk where #Angara-5 rocket was scheduled to lift off about now: https://t.co/RigHJPTBm9 https://t.co/QSXxbdJbaD
MISSION SUCCESS: All 36 @OneWeb satellites had been released from Fregat upper stage concluding the 12th launch into the constellation and bringing it to 394: https://t.co/zlXQs6cBuN
One final quartet of @OneWeb satellites is left to be deployed out of 36 satellites in today's launch: https://t.co/zlXQs6cBuN https://t.co/5N5LcGgj8e
We’re nearly there, with 28 satellites now separated! Just 8 more to go! 🛰 #oneweb #satcom #satellitelaunch #OneWebLaunch12
Confirmation of the 3rd, 4th, 5th, 6th and 7th SC separations (1A-3A-5A-7A , 2B-4B-6B-8B, 1B-3B-5B-7B, 2C-4C-6C-8C, 1C-3C-5C-7C) @OneWebSatellit1 @OneWeb
16 out of 36 @OneWb satellites are now confirmed off the Fregat upper stage in the ongoing delivery mission: https://t.co/zlXQs6cBuN https://t.co/CQhUiIuTbh
Today's launch was also 128th for the #Soyuz-2 rocket series (not counting 1v variant): https://t.co/MbReXW7T2v https://t.co/xgMKBielLS
With today's @OneWeb mission (still in progress) #Soyuz rocket family logged 22 launches in 2021 (all successful, but one likely delivered a dead military satellite): https://t.co/f4Gab0sfx3 https://t.co/Iw614mzcC9
@SzabBen004 @OneWeb Sorry, I don't know.
Confirmation of the 1st and 2nd SC separations : 1K-3K-5K-7K, 2A-4A-6A-8A. 8 more OW sats are now in orbit. @OneWeb @OneWebSatellit1
Correction: 17:44 Moscow (9:44 a.m. EST)
Beginning of the first firing of the Fregat stage had been confirmed as planned, but the vehicle now left the communications range of Russian ground stations and scheduled to re-appear at 17:54 Moscow Time (9:54 a.m. EST): https://t.co/XXkHafG12d
561.9 seconds in flight: Third stage of #Soyuz rocket completes its work releasing OneWeb/Fregat stack into a suborbital trajectory. Fregat upper stage firing to come next: https://t.co/tVu8VQzp7q
Exact liftoff time of today's #Soyuz mission: 16:10:37.088 Moscow Time: https://t.co/CylcbU6xrV https://t.co/zfRN8o8gCI
Payload fairing is reported dropped as well..
287.5 seconds in flight: The second (core) stage of the #Soyuz rocket drops off as the third stage take over the powered ascent... https://t.co/94f4CFstJQ
117.8 seconds in flight: Soyuz drops four first-stage boosters as the core booster continues firing on ascent with OneWeb cluster...
#Soyuz rocket lifts off from Baikonur with 36 OneWeb satellites. DETAILS, UPDATES: https://t.co/rugP3Rcajq https://t.co/mg1x8GgUHR
rocket is reported on onboard power supply...