Proton-M - Turksat-4B - Flight Profile
| Time | Event |
|---|---|
| T-0:00:02.50 | Ignition Sequence Start |
| T-0:00:01.75 | Stage 1 at 40% Thrust |
| T-0:00:00.90 | Stage 1 at 100% Thrust |
| T-0 | LIFTOFF |
| T+0:01:02.0 | Maximum Dynamic Pressure |
| T+0:01:59.0 | Stage 1/2 Separation |
| T+0:05:27.0 | Stage 2/3 Separation |
| T+0:05:47.0 | Payload Fairing Separation |
| T+0:09:41.9 | 3rd Stage / Briz-M Separation |
| T+0:11:46.0 | Briz-M First Ignition |
| Burn Duration: 4 min & 26 sec | |
| T+0:16:12.0 | Briz-M Shutdown |
| T+1:07:33.0 | Briz-M Second Ignition |
| Burn Duration: 17 min & 46 sec | |
| T+1:25:19.0 | Briz-M Shutdown |
| T+3:28:30.0 | Briz-M Third Ignition |
| Burn Duration: 14 min & 27 sec | |
| T+3:42:57.0 | Briz-M Shutdown |
| T+3:43:47.0 | APT Separation |
| T+3:45:14.0 | Briz-M Fourth Ignition |
| Burn Duration: 3 min & 9 sec | |
| T+3:48:23.0 | Briz-M Shutdown |
| T+8:51:35.0 | Briz-M Fifth Ignition |
| Burn Duration: 8 min & 59 sec | |
| T+9:00:34.0 | Briz-M Shutdown |
| T+9:13:00.0 | Spacecraft Separation |
To deliver the Turksat 4B Spacecraft to an optimized Geostationary Transfer Orbit, the Proton-M Rocket will perform a nominal ascent mission and deliver the Orbital Unit consisting of a Briz-M Upper Stage and the Payload to a sub-orbital trajectory. The large Proton-M Rocket will launch from the Baikonur Cosmodrome, Kazakhstan. Separating after 9 Minutes and 42 Seconds, the Orbital Unit will start powered flight by igniting the Briz-M Main Engine to place itself in a Low-Earth Parking Orbit. In total, the Briz-M Upper Stage will make five Main Engine Burns separated by coast phases to increase its orbital altitude. After all burns are complete, the Satellite will be separated 9 Hours and 13 Minutes after Liftoff and start its own mission lasting for 20 years.
Flight Design
- Parking Orbit: 173 by 173 Kilometers - Inclination: 51.5°
- Intermediate Orbit: 270 by 5,000 Kilometers - Inclination: 50.3°
- Transfer Orbit: 425 by 35,799 Kilometers - Inclination: 49.1°
- Injection Orbit - GTO: 9,281 by 35,786 Kilometers - Inclination: 13.2°
