Very good in-depth overview here (10 years old though): http://ub.unibw-muenchen.de/dissertationen/ediss/rossbach-udo/inhalt.pdfHigh quality recent news can be found here: http://www.insidegnss.com/glonassa nitpick: there is no "Glonass-M system". There is GLONASS system and there are two satellite types, commonly referred as "glonass" and "glonass-m".
How will the individual satellites be separated and deployed into their individual locations in the orbital plane?
But these maneuvers are made by the satellites themselves after seperation. Are all 3 satellites released by the upper stage at (nearly) the same time?
A quick look at the Proton-M on pad from Vesti.ru...
I managed to record the launch. Are there any copyright issues with uploading?
Thanks for the images guys. I don't know if it's been answered before, but what does Proton vent shortly after liftoff? The red stuff - NTO or something else and why?
That's the 69th (and probably last) orbital launch attempt this year, up one from last year.
Quote from: GW_Simulations on 12/25/2008 09:48 amThat's the 69th (and probably last) orbital launch attempt this year, up one from last year.68, same as last year, but with fewer failures than in 2007. - Ed Kyle
Quote from: edkyle99 on 12/25/2008 05:12 pmQuote from: GW_Simulations on 12/25/2008 09:48 amThat's the 69th (and probably last) orbital launch attempt this year, up one from last year.68, same as last year, but with fewer failures than in 2007. - Ed Kyle69, if we take into account the Iranian launch on August.
Quote from: Satori on 12/25/2008 05:18 pmQuote from: edkyle99 on 12/25/2008 05:12 pmQuote from: GW_Simulations on 12/25/2008 09:48 amThat's the 69th (and probably last) orbital launch attempt this year, up one from last year.68, same as last year, but with fewer failures than in 2007. - Ed Kyle69, if we take into account the Iranian launch on August.I've seen no convincing evidence that the 8/17/08 launch from Iran was an actual orbital attempt. - Ed Kyle
Quote from: edkyle99 on 12/25/2008 06:15 pmQuote from: Satori on 12/25/2008 05:18 pmQuote from: edkyle99 on 12/25/2008 05:12 pmQuote from: GW_Simulations on 12/25/2008 09:48 amThat's the 69th (and probably last) orbital launch attempt this year, up one from last year.68, same as last year, but with fewer failures than in 2007. - Ed Kyle69, if we take into account the Iranian launch on August.I've seen no convincing evidence that the 8/17/08 launch from Iran was an actual orbital attempt. - Ed KyleThere were several claims of "Iranian orbital launch within the week" shortly beforehand, which is why I think it was an attempt.
Iranian officials have said that this was only a suborbital test flight. The only "officials" who are known to have claimed this as an orbital attempt were un-named *U.S.* "defense officials" who mentioned tracking data from a U.S. destroyer in the Persian Gulf. How a U.S. destroyer could determine if the rocket had a third stage or if it carried a satellite when it failed during its 2nd stage burn was not explained.A correction to my initial post. The launch was on August 16, 2008. - Ed Kyle
Quote from: edkyle99 on 12/26/2008 12:33 amIranian officials have said that this was only a suborbital test flight. The only "officials" who are known to have claimed this as an orbital attempt were un-named *U.S.* "defense officials" who mentioned tracking data from a U.S. destroyer in the Persian Gulf. How a U.S. destroyer could determine if the rocket had a third stage or if it carried a satellite when it failed during its 2nd stage burn was not explained.A correction to my initial post. The launch was on August 16, 2008. - Ed Kyle There were a number of "official" reports that an orbital launch was imminent, followed by a failed launch which was "officially" claimed to have been a sub-orbital test. If you ask me, it looks like an "official" cover-up.
Quote from: GW_Simulations on 12/26/2008 09:15 amQuote from: edkyle99 on 12/26/2008 12:33 amIranian officials have said that this was only a suborbital test flight. The only "officials" who are known to have claimed this as an orbital attempt were un-named *U.S.* "defense officials" who mentioned tracking data from a U.S. destroyer in the Persian Gulf. How a U.S. destroyer could determine if the rocket had a third stage or if it carried a satellite when it failed during its 2nd stage burn was not explained.A correction to my initial post. The launch was on August 16, 2008. - Ed Kyle There were a number of "official" reports that an orbital launch was imminent, followed by a failed launch which was "officially" claimed to have been a sub-orbital test. If you ask me, it looks like an "official" cover-up.Those were Iranian state media reports, which also inaccurately claimed that the February launch sent something to orbit. According to the BBC http://news.bbc.co.uk/2/hi/in_depth/7566804.stm"[Iranian] Officials said only the rocket had been fired, correcting state media reports that the communications satellite itself had been sent into orbit." I should probably start a new thread on this interesting subject. - Ed Kyle
Quote from: edkyle99 on 12/26/2008 03:31 pmQuote from: GW_Simulations on 12/26/2008 09:15 amQuote from: edkyle99 on 12/26/2008 12:33 amIranian officials have said that this was only a suborbital test flight. The only "officials" who are known to have claimed this as an orbital attempt were un-named *U.S.* "defense officials" who mentioned tracking data from a U.S. destroyer in the Persian Gulf. How a U.S. destroyer could determine if the rocket had a third stage or if it carried a satellite when it failed during its 2nd stage burn was not explained.A correction to my initial post. The launch was on August 16, 2008. - Ed Kyle There were a number of "official" reports that an orbital launch was imminent, followed by a failed launch which was "officially" claimed to have been a sub-orbital test. If you ask me, it looks like an "official" cover-up.Those were Iranian state media reports, which also inaccurately claimed that the February launch sent something to orbit. According to the BBC http://news.bbc.co.uk/2/hi/in_depth/7566804.stm"[Iranian] Officials said only the rocket had been fired, correcting state media reports that the communications satellite itself had been sent into orbit." I should probably start a new thread on this interesting subject. - Ed KyleSorry, to clarify, the reports that the August launch was orbital were made before the launch occurred.
Also a nice story can be found on the manufacturers page of the Glonass-satellites.http://www.npopm.ru/?cid=news&nid=628(including pictures)
Hmm, I also thought about this "problem" of separation. Thats interesting.My idea was... the sats have to fill different positions, so the upper-stage would fly the same trajectory like the satellites and deploys each of them in single stages.
That's definitely not the case, the DM/Sat separation is known to happen at one specific time,based on timelines published for earlier Glonass launches. The sats have their own prop and engines to get on station.
http://www.iss-reshetnev.comAll the satellites of №39 block are equipped with additional payload for performing space experiments: satellite №27 is equipped with Li-ion batteries (developer – JSC «Saturn»). A similar experiment with Li-ion batteries is being prepared (JSC «Istochnik»); satellite №28 and №29 is equipped with inter-satellites laser navigation-communication on-board equipment (developer – FSUE «NIIPP»).
