Quote from: Danderman on 10/10/2010 06:15 amBTW, why does Kourou require a 3rd stage dogleg to a 52 degree orbit?It does not need to, no dogleg maneuver required.
BTW, why does Kourou require a 3rd stage dogleg to a 52 degree orbit?
Quote from: PCSTEL on 10/10/2010 01:21 amI have the satellite payload and dispenser coming in at 4,050kg. Six satellites at 700kg and a 550kg dispenser. (Not including the Fregat) These were originally spec'd to launch from Kourou. But, due to the delays in French Guiana, they moved it to Baikonur. Does anyone else see 4,050kgs (minus the Fregat) out of Baikonur on a 2.1b with a ST faring on the high end of the lift capabilities to LEO? I realize the launch should be technically simpler without the need for a 3rd stage dog-leg out of Kourou. But, the 4,050kg figure has me a bit on edge.First off, the Fregat only has to move the payload from a 200 km to 950 km circular orbit, which would cost about 1,000 kg at most in prop.Secondly, the Soyuz 21b can orbit about 8 tons to the initial orbit, which means that the 4,050 kg payloads leaves capacity for a 1,000 kg mass for the Fregat plus some 3,000 kg in prop, which is plenty. In other words, there is a lot of margin available for the mission. Either the Fregat is launched partially empty (maybe just the 1,000 kg or so of prop), or else its launched with the full 3 tons of prop (which is still only a partial load); I suspect that the larger issue is the drop zone problem, so the Fregat prop load will be whatever allows the Soyuz lower stages to land in the required drop zones.BTW, why does Kourou require a 3rd stage dogleg to a 52 degree orbit?
I have the satellite payload and dispenser coming in at 4,050kg. Six satellites at 700kg and a 550kg dispenser. (Not including the Fregat) These were originally spec'd to launch from Kourou. But, due to the delays in French Guiana, they moved it to Baikonur. Does anyone else see 4,050kgs (minus the Fregat) out of Baikonur on a 2.1b with a ST faring on the high end of the lift capabilities to LEO? I realize the launch should be technically simpler without the need for a 3rd stage dog-leg out of Kourou. But, the 4,050kg figure has me a bit on edge.
I thought you were talking about dogleg to reach correct launch azimuth, from Kourou there is no problem.But for upper stage disposal I'm not aware of any maneuver of this kind. By third stage do you mean Fregat or Block I ?
The launch kit has been published :http://www.arianespace.com/news-launch-kits/launch-kit.asp
Quote from: Stephan on 10/11/2010 05:42 pmThe launch kit has been published :http://www.arianespace.com/news-launch-kits/launch-kit.aspLaunch kit describes the Fregat performing a "barbeque maneuver", can anyone explain what a BBQ Maneuver is? Thank you
Baikonur was removal of the rocket Soyuz-2 "with a cluster of spacecraft" Globalstar ":: 10/16/2010This morning at the Baikonur Cosmodrome conducted a successful removal of a space rocket Soyuz-2-1A with the upper stage "Fregat" and six spacecraft Globalstar-2 »(Globalstar2).Transportation of missiles from the assembly and test facility area 31 Baikonur launch complex began at 5.30 am MSK. Half an hour later the missile was delivered to the launch facility and staff calculations Space Agency launched its installation in the launch system. By 7 o'clock MSK missile was installed in a vertical position, and after another hour brought to her farm maintenance.After this calculation the space industry experts have begun to perform work on schedule the first launch day.To oversee the final phase of preparations for the launch of space rocket Soyuz-2-1A with six SC "Globalstar-2" at the Baikonur Cosmodrome profit CEO of Arianespace Jean-Yves Le Gall and CEO of the joint Russian-European venture STARS Viktor Nikolaev. Today, they attended the removal of ILV.Space rocket Soyuz-2-1A with the upper stage "Fregat" and six companions Globalstar2 scheduled to perform at 21.10 MSK October 19, 2010.
A question: who was manufacturing the special dispenser for the six spacecrafts?
Anyone know the serial number of the Soyuz; and the GRAU of the 1st & 2nd stages?