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all right we're into the final 60

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seconds of the first launch of the year

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remember you can follow all the action

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on the website you have the uh address

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right there the ignition sequence tell

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us about that alex you'll hear the ddo

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call out alimaj

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you'll see the flame under the main

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engine vulcan so we shall ignite the uh

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the engine and check it for seven

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seconds that's the main engine that's

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the main engine and when it's

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everything's fine and with the the check

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is okay then the ignition of the

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boosters and the actual liftoff

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okay so you get main engine lights up

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first computers check out for seven

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seconds all the pressure testing on the

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ground and then the boosters go we'll

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let the ddo call out the final countdown

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and be back after aryan has cleared the

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decollege

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beautiful area off on our way with just

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a 24-hour delay leaving a trail of gold

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as she rises into the sky over a french

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vienna at 1851 local time and right on

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time marianne began her mission and

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right on time so we had a mass at

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liftoff of

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773 tons including 554 tons for the soul

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boosters

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initial acceleration that will increase

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velocity from zero to seven thousand two

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hundred kilometers per hour in about two

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point three minutes that's four thousand

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thousand miles per hour

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so after booster separation which will

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occur in about two minutes uh the

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launcher will have lost about 75 percent

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of its lift of mass the boosters will

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fall down into the atlantic ocean

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in a zone which has been secured by an

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international advice to american

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navigation

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arian burning now five tons of fuel per

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second that's two and a half tons in

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each booster per second the epc also the

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core stage as it's called is burning

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another 300 kilos of fuel per second all

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that adds up to roughly the equivalent

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of a dozen airbuses she's now following

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the program in the onboard computer

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which gives all the orders including

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stage separations which we will soon see

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four powered flight phases tonight we're

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in the first one the main engine and the

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boosters and the boosters as alex said

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they're going to burn for another maybe

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20 seconds

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alex take a look on the left the upper

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left screen can you give us a

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description of the curve please

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we see the

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simulated flight trajectory which is

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computed by using very accurate

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mathematical models of the launcher and

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the atv and by application of course of

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the keplerian laws for the ballistic

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phase which we're going to hear about a

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ddo has just called out the separation

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of the boosters you can see what that

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looks like there's another one at a

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camera range on the left but they fall

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back down right on time at about 64

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they fall away from the shore people

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streaming back in from the terrace as

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you can see in the background there

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that's not to follow the the actual

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flight

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and now we're expecting the uh fairing

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separation that's the next milestone

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you can see the cursor crawling up on

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the upper left i don't know if you can

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read it says separation of the fairing

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on the lower left alex can you uh

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describe what the bottom line is

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yes we have the real-time information

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from the launcher of the uh

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velocity and the altitude and also the

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uh

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angle of the telemetry antenna with

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respect to horizontal

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so you see the altitude

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the the altitude is 102 kilometers

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that's the second line so we're above

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the atmosphere which is where we can

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separate the fairing and the ddo will

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call out that milestone in a moment

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we are in this second

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there it is

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we don't need the the protection of the

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fairing anymore we have

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crossed the atmospheric layers and then

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now we don't need these uh two tons

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weight anymore

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they're actually two halves one half

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like one of the boosters before was on

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yeah it's cut vertically

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horizontally

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everything is perfect on board says the

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ddo the atv now under the fairing