A few points that interested me while watching the live transmission were
1. All 6 strap-ons in 1st stage are not lit and seperated simultaneously. There are two sets .. 4 Ground lit ones ignite about T+ 0.4 seconds. The 2 airlit ones ignite at T+25. 1st set of strap-ons seperate at T+70, 2nd set seperates at T+92 secs.
However the most interesting part was during last few maneuvers depicted in these screenshots.
In the end the last kink was interesting. In case of normal Polar Satellite launch the satellite is just released when the launcher is parallel to surface of earth at equator but here the requirement was that the satellite should be released at a very critically decided angle so that the spacecraft velocity vector and earth's gravitational field vector make the spacecraft to attain the highly elliptical initial orbit of 284kms X 21000kms. Therefore the spacecraft is first raised to about 300 kms and then turned groundwards. This not only brings it to the required injection angle wrt earth surface but also increases velocity very rapidly to the required injection velocity of 9.5+ kms/sec required for achieving the desired elliptical orbit.
Added instants at the seperartion of Ground-lit strap-ons (T+89 sec) and 2nd stage ignition ( T + 103 sec).
I have added cursors ( Yellow horizontal lines ) at the following instances :
GL Strap-on separation @ 69.9 sec
AL Strap-on separation @ 92 sec
PS1 separation @ 112.4 sec and PS2 Ignition about .5 sec after that
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