1. In the mission document provided by federal space agency in http://www.mcc.rsa.ru/luch_5v.htm, there is a parameter concerning Luch-5V, which is Количество антенн модуля целевой аппаратуры (МЦА) : 9. Could anyone familiar with Russian provide an explanation of this?
2. In the ensuing launch timeline of the webpage, the auxiliary propellent tank of Briz-M is jettisoned after the 2nd burn with 3 burns left. I remember that in a typical 5-burn mission, the APT is jettisoned after the 3rd burn with ~10 min burn time left, like the Turksat-4A mission. So does anyone have an idea of the underlying reason for this?
Quote from: siweifdu on 04/27/2014 02:51 am1. In the mission document provided by federal space agency in http://www.mcc.rsa.ru/luch_5v.htm, there is a parameter concerning Luch-5V, which is Количество антенн модуля целевой аппаратуры (МЦА) : 9. Could anyone familiar with Russian provide an explanation of this?Quantity of antennas of satellite payload.Quote from: siweifdu on 04/27/2014 02:51 am2. In the ensuing launch timeline of the webpage, the auxiliary propellent tank of Briz-M is jettisoned after the 2nd burn with 3 burns left. I remember that in a typical 5-burn mission, the APT is jettisoned after the 3rd burn with ~10 min burn time left, like the Turksat-4A mission. So does anyone have an idea of the underlying reason for this?It is mistake - DTB separation will be at 08:23:01 UTC after Briz-M third burn.
So this is the first ever launch of Proton-M phase IV version right?
3. Sorry to bring up the question again. Is this launch using Phase IV or Phase III Proton-M/Briz-M, as the current information seems confusing. Could anyone provide some information sources.
Quote from: owais.usmani on 04/24/2014 12:51 pmSo this is the first ever launch of Proton-M phase IV version right?Quote from: siweifdu on 04/27/2014 02:51 am3. Sorry to bring up the question again. Is this launch using Phase IV or Phase III Proton-M/Briz-M, as the current information seems confusing. Could anyone provide some information sources.So nobody knows?
Quote from: anik on 04/27/2014 11:09 amQuote from: siweifdu on 04/27/2014 02:51 am1. In the mission document provided by federal space agency in http://www.mcc.rsa.ru/luch_5v.htm, there is a parameter concerning Luch-5V, which is Количество антенн модуля целевой аппаратуры (МЦА) : 9. Could anyone familiar with Russian provide an explanation of this?Quantity of antennas of satellite payload.Quote from: siweifdu on 04/27/2014 02:51 am2. In the ensuing launch timeline of the webpage, the auxiliary propellent tank of Briz-M is jettisoned after the 2nd burn with 3 burns left. I remember that in a typical 5-burn mission, the APT is jettisoned after the 3rd burn with ~10 min burn time left, like the Turksat-4A mission. So does anyone have an idea of the underlying reason for this?It is mistake - DTB separation will be at 08:23:01 UTC after Briz-M third burn.Anik will Luch now operate to give the ISS communication without many the dark areas we now have?