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LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
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Topic: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC) (Read 41115 times)
Steven Pietrobon
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #100 on:
04/11/2018 10:34 pm »
T-1 minute.
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Akin's Laws of Spacecraft Design #1: Engineering is done with numbers. Analysis without numbers is only an opinion.
ZachS09
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Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #101 on:
04/11/2018 10:34 pm »
T-30 seconds. Go PSLV, Go IRNSS.
Igniters being armed.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
ZachS09
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Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #102 on:
04/11/2018 10:34 pm »
T-15.
10, 9, 8, 7, 6, 5, 4, 3, 2, 1, ignition and liftoff of the PSLV-XL rocket with IRNSS 1I, continuing to provide positioning, navigation, and timing services for Indian residents.
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deruch
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
Steven Pietrobon
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Posts: 39215
Adelaide, Australia
Liked: 32735
Likes Given: 8178
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #103 on:
04/11/2018 10:35 pm »
Liftoff!
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deruch
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Akin's Laws of Spacecraft Design #1: Engineering is done with numbers. Analysis without numbers is only an opinion.
ZachS09
Space Savant
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Posts: 8406
Roanoke, TX
Liked: 2344
Likes Given: 2060
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #104 on:
04/11/2018 10:35 pm »
T+25 seconds. We've ignited the air-starts on time. Vehicle beginning to go supersonic.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
ZachS09
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Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #105 on:
04/11/2018 10:35 pm »
T+40 seconds. We're now reaching the period of maximum dynamic pressure as all four ground-starts begin to tail off.
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Chris Bergin
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #106 on:
04/11/2018 10:35 pm »
LAUNCH!
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deruch
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ZachS09
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #107 on:
04/11/2018 10:35 pm »
T+1 minute, 10 seconds. We have good separation of all four ground-start motors and the air-starts are now burning out.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
Steven Pietrobon
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Adelaide, Australia
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #108 on:
04/11/2018 10:36 pm »
T+1 minute.
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Akin's Laws of Spacecraft Design #1: Engineering is done with numbers. Analysis without numbers is only an opinion.
ZachS09
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Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #109 on:
04/11/2018 10:36 pm »
T+90 seconds. And there's jettison of both air-start motors. First stage continues to burn well.
First stage burnout should occur at the 107-second point, followed by staging and second stage engine start one second later.
«
Last Edit: 05/04/2018 03:32 am by ZachS09
»
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
ZachS09
Space Savant
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Posts: 8406
Roanoke, TX
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Likes Given: 2060
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #110 on:
04/11/2018 10:36 pm »
T+1 minute, 50 seconds. The first stage has burnt out and separated. The Vikas 2B engine has ramped up to full thrust.
Second stage will burn for about 154 seconds until the 264-second point.
«
Last Edit: 04/11/2018 11:19 pm by ZachS09
»
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robertross
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deruch
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
worldtimedate
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #111 on:
04/11/2018 10:36 pm »
Lift-off is normal.
First Stage performance is normal.
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Steven Pietrobon
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #112 on:
04/11/2018 10:37 pm »
T+2 minutes. First stage separation and second stage ignition.
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Akin's Laws of Spacecraft Design #1: Engineering is done with numbers. Analysis without numbers is only an opinion.
ZachS09
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Posts: 8406
Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #113 on:
04/11/2018 10:37 pm »
Now two and a half minutes into the flight of IRNSS 1I. Vehicle attitude is nominal; second stage propulsion is looking good.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
Chris Bergin
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #114 on:
04/11/2018 10:37 pm »
Interesting solids sep
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ZachS09
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Posts: 8406
Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #115 on:
04/11/2018 10:37 pm »
Three minutes in. Heat shield jettison in about twenty seconds.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
Steven Pietrobon
Member
Senior Member
Posts: 39215
Adelaide, Australia
Liked: 32735
Likes Given: 8178
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #116 on:
04/11/2018 10:37 pm »
T+3 minutes.
Logged
Akin's Laws of Spacecraft Design #1: Engineering is done with numbers. Analysis without numbers is only an opinion.
ZachS09
Space Savant
Senior Member
Posts: 8406
Roanoke, TX
Liked: 2344
Likes Given: 2060
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #117 on:
04/11/2018 10:38 pm »
And we have heat shield jettison. With that event occurring successfully, the PSLV now weighs just 11% of its liftoff weight (34.22 tons compared to 310 tons).
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deruch
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
worldtimedate
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #118 on:
04/11/2018 10:38 pm »
First Stage has been separated.
Second stage has ignited.
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ZachS09
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Posts: 8406
Roanoke, TX
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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
«
Reply #119 on:
04/11/2018 10:38 pm »
Coming up on SECO momentarily.
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Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!
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LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
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