Сегодня в 0.30 мск прибыл еще один железнодорожный состав с ракетой-носителем «Протон-М». Эта ракета с разгонным блоком «Бриз-М» должна будет вывести в космос американский телекоммуникационный спутник «Сириус-Радио ФМ-5». Пуск «Протона» запланирован на конец июня - июль.http://www.roscosmos.ru/NewsDoSele.asp?NEWSID=6298
http://www.federalspace.ru/NewsDoSele.asp?NEWSID=6512Sirius FM-5 satellite with dispenser is docked to Briz-M upper stage.
Quote from: anik on 06/18/2009 04:49 pmhttp://www.federalspace.ru/NewsDoSele.asp?NEWSID=6512Sirius FM-5 satellite with dispenser is docked to Briz-M upper stage.On this Roskosmos news posting the russian space agency is calling the Proton-M2. Is this just an error?
Quote from: Satori on 06/18/2009 08:47 pmQuote from: anik on 06/18/2009 04:49 pmhttp://www.federalspace.ru/NewsDoSele.asp?NEWSID=6512Sirius FM-5 satellite with dispenser is docked to Briz-M upper stage.On this Roskosmos news posting the russian space agency is calling the Proton-M2. Is this just an error?My first thought was that it was a typo, but having looked at it again, it occurs twice. We'll have to see if they use it again.
www.khrunichev.ru/main.php?id=1&nid=1097W2A use of Proton-M2Also possible M2935-01 Ekspress-AM44 Ekspress-MD1935-02 INMARSAT-4F3
Is it me or have Proton-M2 references been removed from Roscosmos website. Google cache shows difference? Use Google to search for «Протон-М2» and compare
Launch Time:01:10 Baikonur19:10 GMT15:10 EDT
The launch is scheduled at 23:10:00 (GMT +3)
Khrunichev live feed will start in about 40 minutes...
For those of us who don't speak Russian, can you translate a little?
First of five burns of the Breeze-M Upper Stage - pending confirmation.
I admit that's an itty bitty picture, but it sure looks like Wynton Marsalis.
Third and fourth burns have been completed.
Some questions on the further plans of Sirius:Sirius FM6 (nearly identical to FM5) is planned to be launched next year to a Tundra HEO. I have heared somewhere, that it is to replace FM1 and(!) FM2. This would imply, that the HEO constellation would be reduced to two satellites with FM6 going into a new orbital plane. Can anyone confirm this?
Quote from: Skyrocket on 07/01/2009 02:32 pmSome questions on the further plans of Sirius:Sirius FM6 (nearly identical to FM5) is planned to be launched next year to a Tundra HEO. I have heared somewhere, that it is to replace FM1 and(!) FM2. This would imply, that the HEO constellation would be reduced to two satellites with FM6 going into a new orbital plane. Can anyone confirm this?That would be interesting...guess it would be 180 deg out of phase with FM-3. It wouldn't allow them to have a satellite continuously over the northern hemisphere, so I don't know how well that would work.
Quote from: vt_hokie on 07/01/2009 05:46 pmQuote from: Skyrocket on 07/01/2009 02:32 pmSome questions on the further plans of Sirius:Sirius FM6 (nearly identical to FM5) is planned to be launched next year to a Tundra HEO. I have heared somewhere, that it is to replace FM1 and(!) FM2. This would imply, that the HEO constellation would be reduced to two satellites with FM6 going into a new orbital plane. Can anyone confirm this?That would be interesting...guess it would be 180 deg out of phase with FM-3. It wouldn't allow them to have a satellite continuously over the northern hemisphere, so I don't know how well that would work.What are the advantages of tundra orbit over GEO anyway? Is it just coverage of higher lattitudes?
Sirius FM6 (nearly identical to FM5) is planned to be launched next year to a Tundra HEO
I was an XM customer before the merger so I never had to think about it, but I'm guessing it's to help look-angles to the satellite(s).
Quote from: GW_Simulations on 07/01/2009 06:09 pmQuote from: vt_hokie on 07/01/2009 05:46 pmQuote from: Skyrocket on 07/01/2009 02:32 pmSome questions on the further plans of Sirius:Sirius FM6 (nearly identical to FM5) is planned to be launched next year to a Tundra HEO. I have heared somewhere, that it is to replace FM1 and(!) FM2. This would imply, that the HEO constellation would be reduced to two satellites with FM6 going into a new orbital plane. Can anyone confirm this?That would be interesting...guess it would be 180 deg out of phase with FM-3. It wouldn't allow them to have a satellite continuously over the northern hemisphere, so I don't know how well that would work.What are the advantages of tundra orbit over GEO anyway? Is it just coverage of higher lattitudes?I was an XM customer before the merger so I never had to think about it, but I'm guessing it's to help look-angles to the satellite(s). XM's constellation has issues in hilly or heavily forested terrain because you need to have a good view of the southern horizon. They get around this in a lot of areas by using terrestrial repeaters (they have around 2,000 of them as I recall - so much for "satellite" radio, eh? ) but I don't believe Sirius took that approach, choosing instead the tundra orbital scheme.
