Author Topic: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011  (Read 412780 times)

Offline Nicolas PILLET

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #100 on: 10/15/2011 10:02 AM »
Has anybody seen any detailed ascent timeline, including trans-Mars insertion? Will that burn be done under telemetry observation, or 'in the blind', again?

According to Vestnik n°3-2011 :

Three correction burns are scheduled.

First burn : between 5 and 10 days after Trans-Mars injection (dV = 85m/s)
Second burn : on the 65th day (dV = 10m/s)
Third burn : 4 to 2 weeks before Mars arrival (dV = 35m/s)
Nicolas PILLET
Kosmonavtika : The French site on Russian Space

Offline JimO

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #101 on: 10/15/2011 11:28 AM »
Briz-M? Wasn't it a Fregat stage?

There is not Briz-M upper stage on Zenit-2SLB rocket for Fobos-Grunt launch, there is not upper stage there at all, there is a cruise propulsion engine Flagman based on Fregat upper stage.

Thank you. Do we have access to any schedule of the Flagman burn times? Will they be 'in the blind'?

Offline B. Hendrickx

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #102 on: 10/15/2011 11:42 AM »
Briz-M? Wasn't it a Fregat stage?

There is not Briz-M upper stage on Zenit-2SLB rocket for Fobos-Grunt launch, there is not upper stage there at all, there is a cruise propulsion engine Flagman based on Fregat upper stage.

Yes, of course. Sorry for the misunderstanding.  Somehow must have had the Proton in the back of my mind.

As for burn times, the article in "Vestnik" gives 8.4 minutes for the first burn and 8.5 minutes for the second burn. No duration is given for the escape burn, probably because that will be calculated only after the orbital parameters of Fobos-Grunt are carefully measured following the second burn.

Offline Cbased

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #103 on: 10/17/2011 01:58 PM »
Phobos-Grunt has been delivered to Baikonur today

Offline Satori

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #104 on: 10/17/2011 02:05 PM »

Offline anik

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #105 on: 10/18/2011 04:17 PM »
According to http://phobos.cosmos.ru/index.php?id=312&L=2, Fobos-Grunt launch is planned at 20:16:03.145 UTC on November 8th.

Offline racshot65

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #106 on: 10/18/2011 05:44 PM »
Cross Post from the thread in the Robotic Section


Quote
Full credit to Astro0 over at UnmannedSpaceFlight.com for these links
http://www.unmannedspaceflight.com/index.php?s=&showtopic=1844&view=findpost&p=179317


Work and testing on the actual spacecraft (about 17mins and 118mb)
http://www.federalspace.ru/download/video/2011_09_26_Fobos_Grunt.flv

Animation of the entire mission (about 11mins and 71mb)
http://www.federalspace.ru/download/video/2011_09_26_FobosGr.flv
« Last Edit: 10/18/2011 06:54 PM by racshot65 »

Offline Lewis007

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #107 on: 10/25/2011 07:17 AM »
Roscosmos video of launch preps


Offline JimO

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #108 on: 10/28/2011 04:54 AM »
The detailed ascent sequence of Mars-96 is here:
Ascent burn sequence
http://iki.rssi.ru/mars96/10_mars_e.htm


Has anyone found such detailed information for Fobos-Grunt?

Offline JimO

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #109 on: 10/28/2011 04:57 AM »
The Russians have apparently asked JPL to help alert observers in South America to watch for the two engine firings which will occur in darkness over that region.

see http://satobs.org/seesat/Oct-2011/0297.html

This effort to gather visual observations would be most helpful in the event of anomalies.
 
One of the major stumbling blocks in the accident investigation for Mars-96 was that the insertion burns were scheduled over the Gulf of Guinea, off Africa, 'in the blind', without the normal Soviet-era tracking ship on the ocean beneath the ground track.
 
Russia in 1996 just could not afford it.
 
Not having the real-time data on the insertion anomaly that DID occur in 1996 led
directly to the early confusion about where/when the probe actually reentered. As a result, the story solidified that it [and its plutonium batteries] had fallen safely into the Pacific Ocean when they actually came down over the Andes near the Chile-Bolivia border, where no search was ever made and no warnings were ever issued to the local population.
See http://www.jamesoberg.com/plutonium.html
 
Both Moscow and Washington found it convenient to let the initial misperceptions stand, so as not to alarm people -- or upset the still-brittle US-Russian space station alliance.

Offline JimO

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #110 on: 10/28/2011 10:02 PM »
Trajectory data: http://phobos.cosmos.ru/index.php?id=312&L=2


Thin red line – coasting in sunlight
Thick red line – burning in sunlight
Thick black line – burning in shadow
Thin black line – coasting in shadow

First on-orbit burn:  November 08  //  22:55:48 GMT  for 9 min 30 sec
http://phobos.cosmos.ru/uploads/pics/1EB_02.jpg
Begins over Chile, south of Concepcion, heads northeast over Rosario/Parana [west of Buenos Aires], Urugualana, up the Argentine/Uruguay border, Londrina, just NW of Montes Claros, and off the coast between Natal and Fortaleza, then into Earth’s shadow.

Second on-orbit burn    Nov 09 //   01:02:49 GMT for 17 min 20 sec
http://phobos.cosmos.ru/uploads/pics/2EB_02.jpg
Cross coast of Peru near Ica, head NE, south tip of Colombia near Esperanca, Brazil, across eastern Venezuela, cross coast at Orinoco’s ‘Boca Grande’,visible from Trinidad and neighboring islands, enter Earth shadow while still burning, heading NE out over Atlantic.

Offline Moe Grills

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #111 on: 11/07/2011 02:22 AM »
  I think we can expect a 24 hour+ delay. The Phobos-Grunt booster should have been moved to its launch platform by now.

Offline JimO

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #112 on: 11/07/2011 03:23 AM »
  I think we can expect a 24 hour+ delay. The Phobos-Grunt booster should have been moved to its launch platform by now.

Russian Space Agency site
http://www.federalspace.ru/main.php?id=2&nid=18210
reports booster rolled out today [Nov 6] and ends with
""Пуск ракеты космического назначения «Зенит-2SБ»
с российской межпланетной автоматической
станцией «Фобос-Грунт» запланирован на 9 ноября."

..with the operative words being "launch is planned for 9 November",
which using Moscow time, GMT + 4, the same launch date we've been looking at for awhile.


See http://phobos.cosmos.ru/index.php?id=312&L=2
"This trajectory is a planned version that assumes Phobos-Soil launch will occur 2011-Nov-8 20:16:03.145 UTC from Baikonur."


« Last Edit: 11/07/2011 03:27 AM by JimO »

Offline Lewis007

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #113 on: 11/07/2011 06:17 AM »
The Zenit-2 rocket was transported to the launchpad on November 6.
Source: http://www.roscosmos.ru/main.php?id=2&nid=18210

With events occuring during the weekend, coverage is not optimal. I have not seen pictures or a video yet, but expect this will follow later today.

Offline Cbased

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Offline Lewis007

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #115 on: 11/07/2011 03:37 PM »
Roscosmos video of roll-out


Offline Blackstar

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #116 on: 11/07/2011 05:55 PM »
http://www.thespacereview.com/article/1965/1

Red moon around a Red Planet

by Dwayne A. Day
Monday, November 7, 2011

"Very soon—perhaps by the time you’ve read this article—Russia will launch the Phobos-Grunt mission to Mars. Whether you’re interested in planetary science or human spaceflight there is good reason to hope that this mission succeeds, but also reason to expect it to fail.
This combination of great ambition and inexperience makes Phobos-Grunt a risky mission.

Phobos-Grunt is an incredibly ambitious mission to send a spacecraft to the Martian moon Phobos, perform analysis there, retrieve some samples (“Grunt” is Russian for “soil”), possibly even including ejected pieces of Mars, and then return them to Earth. In addition to its scientific instrument suite and its sample return equipment, the spacecraft will also carry a Chinese Mars orbiter. In terms of sophistication, this mission is the equivalent of NASA’s mid-sized New Frontiers class of spacecraft, with an impressive science suite and many engineering challenges."

And:

“Phobos-Grunt would be a powerful demonstration proof that bringing samples back from Mars orbit is possible. More importantly, it would place the Russians in the running to provide the vital sample return spacecraft for an expensive Mars sample return campaign.”

Offline Blackstar

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #117 on: 11/07/2011 05:56 PM »
http://www.thespacereview.com/article/1966/1

Phobos sample return launches tomorrow
by Lou Friedman
Monday, November 7, 2011

"If all goes well tomorrow (November 9 Moscow time) a Zenit-2 rocket will send the first Russian mission out of Earth orbit since the fall of the Soviet Union. In addition to it being a first for post-Communist Russia, it carries other first hopes: the first Chinese mission to Mars and the first deliberate sending of life from Earth into the solar system. The mission is complex and awesome: a 13.5-metric-ton spacecraft (including a 115-kilogram Chinese orbiter and 90-gram Planetary Society Living Interplanetary Flight Experiment, or LIFE) will be launched on a 33-month roundtrip journey to the Martian moon Phobos, with the objective of landing there, collecting a soil sample, and returning the sample to Earth."
« Last Edit: 11/07/2011 05:56 PM by Blackstar »

Offline Prober

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #118 on: 11/07/2011 07:02 PM »
Enjoyed the video very much......maybe a different person shooting with a different view of things...very well done.

This should be a very interesting launch.  Looks like a real Zenit 2?  Only two stages and payload?

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Offline Moe Grills

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Re: LIVE: Zenit-2SB launch with Phobos-Grunt - November 8, 2011
« Reply #119 on: 11/07/2011 07:08 PM »
The Zenit-2 rocket was transported to the launchpad on November 6.
Source: http://www.roscosmos.ru/main.php?id=2&nid=18210

With events occuring during the weekend, coverage is not optimal. I have not seen pictures or a video yet, but expect this will follow later today.


I stand corrected. Thank you.

Now, GO, Zenit? GO, Phobos-Grunt!  Ooogon!! Pahleetayeet!!!

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