| T-00:00 |
PS1 Ignition |
| The PSLV's solid-fueled first stage motor ignites when the countdown clock reaches zero. |
|
| T+00:00.46 |
Ground-lit Booster Ignition |
| Four of the PSLV's six strap-on boosters ignite in pairs two-tenths of a second apart at T+plus 0.42 seconds and T+plus 0.62 seconds to push the 146-foot-tall rocket off the pad atop 1.7 million pounds of thrust. |
|
| T+00:25 |
Air-lit Booster Ignition |
| Two more 39-foot-long strap-on motors ignite at an altitude of more than 8,800 feet to give the PSLV an extra boost. |
|
| T+01:10 |
Ground-lit Booster Separation |
| The PSLV's four ground-lit boosters burn out and jettison, leaving the first stage and two air-lit boosters to continue firing. |
|
| T+01:32 |
Air-lit Booster Separation |
| The PSLV's two air-lit boosters burn out and jettison at an altitude of more than 25 miles. |
|
| T+01:49 |
First Stage Separation/Second Stage Ignition |
| Flying at an altitude of nearly 35 miles, the PSLV's solid-fueled first stage burns out and separates after consuming more than 300,000 pounds of propellant. The PSLV's Vikas second stage engine ignites less than a second later. |
|
| T+01:55 |
Closed-loop Guidance |
| The PSLV initiates closed-loop guidance. |
|
| T+03:19 |
Payload Fairing Jettison |
| The 3.2-meter, or 10.5-foot, diameter aluminum payload fairing jettisons once the PSLV flys above the dense lower atmosphere, exposing the IRNSS 1C satellite to space. |
|
| T+04:21 |
Second Stage Separation |
| The PSLV's Vikas engine shuts down and the second stage separates at the conclusion of its burn at an altitude of 82 miles. |
|
| T+04:22 |
Third Stage Ignition |
| The PSLV's third stage solid-fueled motor begins a 112-second burn. |
|
| T+06:14 |
Third Stage Burnout |
| The PSLV's third stage motor burns out, and the rocket begins a coast phase. |
|
| T+11:02 |
Third Stage Separation |
| The PSLV's third stage separates from the fourth stage. |
|
| T+11:12 |
Fourth Stage Ignition |
| The PSLV's fourth stage, powered by two hydrazine-fueled engines, ignites to propel the IRNSS 1C spacecraft into geostationary transfer orbit. |
|
| T+19:41 |
Fourth Stage Shutdown |
| The fourth stage shuts down after achieving an orbit with a perigee of 176 miles, an apogee of 12,831 miles and an inclination of 17.9 degrees. |
|
| T+20:18 |
Spacecraft Separation |
| The PSLV fourth stage deploys the IRNSS 1C satellite in orbit. |
|
