Author Topic: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)  (Read 24238 times)

Offline vineethgk

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #120 on: 04/11/2018 10:38 pm »
Aaaargh... The camera man zoomed in on people's faces in MCC when they had the airlit strapon separation and PS1 separation events..

Offline ZachS09

We have SECO, second stage separation, and third stage ignition. Third stage will burn for 112 seconds.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #122 on: 04/11/2018 10:39 pm »
Fairing separation.

T+4 minutes.

Second stage separation. Third stage ignition.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

T+5 minutes. Third stage propulsion healthy; trajectory also is nominal.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #124 on: 04/11/2018 10:40 pm »
T+5 minutes. Third stage performance normal.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

Nominal flight so far.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Offline ZachS09

Third stage has now burnt out. Between the burnout and third stage separation, there will be a 222-second coast phase. Ten seconds after third stage separation, the two fourth stage engines will start up.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #127 on: 04/11/2018 10:41 pm »
T+6 minutes.

Third stage cutoff.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

Coast phase is as expected.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #129 on: 04/11/2018 10:41 pm »
T+7 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

Very close to preflight predictions.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #131 on: 04/11/2018 10:43 pm »
T+8 minutes. Still coasting.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

According to the onboard rocketcam, PSLV has seen its first sunrise.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #133 on: 04/11/2018 10:44 pm »
T+9 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ZachS09

T+10 minutes. Third stage has separated from the fourth stage. Standing by for engine start.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Offline ZachS09

Engine start has been confirmed. This single burn of the fourth stage will last 514 seconds until T+1123 seconds.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online Steven Pietrobon

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #136 on: 04/11/2018 10:45 pm »
T+10 minutes. Third stage separation.

Fourth stage ignition.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline worldtimedate

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Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #137 on: 04/11/2018 10:45 pm »
Third stage has seprated at 597 secnods. Fourth stage has ignited at 600 seconds. Fourth Stage performance is normal.

Offline ZachS09

Fourth stage propulsion healthy.

PSLV is orbital.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Offline ZachS09

T+11 and a half minutes.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

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