Indian Space Program: News & Discussion - Sept 2016

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prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 16:51

Automatic Launch sequence is on

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Re: Indian Space Programme Discussion - Sept 2016

Postby KBDagha » 29 Mar 2018 16:56


prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 16:57

lift off

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 16:57

ist stage perfoaarmance naarmal

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 16:59

L40 shut off

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:00

2nd stage performance normal
Payload fairing separated

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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:02

GS2 SEPARATED CRYOGENIC STAGE IGNITION CONFIORMED

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:02

CUS perfaarmanc naarmal

Prithwiraj
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Re: Indian Space Programme Discussion - Sept 2016

Postby Prithwiraj » 29 Mar 2018 17:03

Are they deliberately not showing the time v velocity and time v altitude plot and instead just showing ISRO scientists due to some sensitivity around the satellites being placed for military purpose? In US also NROL launches are heavily censored post launch

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:05

Cryostage Farfaarmance normal

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:06

No they ahve shown the velocity time plot in between and it is nominal. Last it was at 5.8Kms/sec

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:11

Altitude achieved now velocity is being increased prior to finishing movement to argument of perigee point

prasannasimha
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Re: Indian Space Programme Discussion - Sept 2016

Postby prasannasimha » 29 Mar 2018 17:14

CUS SHUT OFF

Bob V
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Re: Indian Space Programme Discussion - Sept 2016

Postby Bob V » 29 Mar 2018 17:14

low-level clouds hampered any chances of taking good shots. I was waiting with my tele-photo lens, on the terrace. :((

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Re: Indian Space Programme Discussion - Sept 2016

Postby JayS » 29 Mar 2018 17:15

Successful separation. another success by ISRO. Yawn....!

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Re: Indian Space Programme Discussion - Sept 2016

Postby JTull » 29 Mar 2018 17:25

Now our soldiers in far-off locations can have direct phone connection.

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Re: Indian Space Programme Discussion - Sept 2016

Postby Kakarat » 29 Mar 2018 17:34

This time i had borrowed a 1200D with 55-250mm lens from a friend to capture this launch. But a hazy sky and a unfamilier camera has resulted in a not so good images, anyway will post a few on my twitter page after editing

Just thinking of going to Pulicat for covering the Chandrayaan 2 Launch if time permits

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Re: Indian Space Programme Discussion - Sept 2016

Postby Singha » 29 Mar 2018 17:48

Yawn :mrgreen: . I totally missed it. just naarmal

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Re: Indian Space Programme Discussion - Sept 2016

Postby Karthik S » 29 Mar 2018 18:01

ditto

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Re: Indian Space Programme Discussion - Sept 2016

Postby Pratyush » 29 Mar 2018 18:02

Yet another boring routine launch. Way to go.

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Re: Indian Space Programme Discussion - Sept 2016

Postby Suresh S » 29 Mar 2018 18:17

damn everything Naaaaaaaaaaaaarmal again

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Re: Indian Space Programme Discussion - Sept 2016

Postby Ashokk » 29 Mar 2018 18:21

Handheld Satcom Terminal for GSAT6 from BEL
Image
The Handheld Satcom Terminal is a compact handheld communication system capable of providing secure voice/data communication using the Mobile Satellite Service (MSS) transponder of Indian satellite(GSAT-6).
The battery operated system can be deployed in less than a minute, making it highly suitable for defence forces.

FEATURES
Secure voice from Terminal to Terminal
Secure data
In Built Secrecy
Separate AC-DC adaptor
Terminal-to-terminal full duplex connectivity through a central hub
In-built GPS Receiver
Alphanumeric keypad 3 x 6


Satcom Messaging Terminal for GSAT6 from BEL
Image
The Satcom Messaging Terminal is a compact hand-held communication system capable of providing secure location reporting, navigation, short messaging and Distress Communications using the Mobile Satellite Service (MSS) transponder of Indian satellite( GSAT-6). The battery operated system can be deployed in less than a minute, making it highly suitable for defence forces.

FEATURES
Secure data from Terminal to Terminal
In Built Secrecy
Separate AC-DC adaptors.
In-built GPS Receiver.
Alphanumeric keypad 3 x 6
2.8” graphical Display

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Re: Indian Space Programme Discussion - Sept 2016

Postby juvva » 29 Mar 2018 18:41

I thought it was a much better broadcast from DD.

The commentators went quiet at the moment of launch and remained quiet for some time. The commentary in general was more restrained this time around.

The cameras tracked the vehicle well during lift off and initial phase of flight, without losing sight of the vehicle as happened during some earlier launch coverage's. Also the resolution of the video seemed to be better (HD?).

Hope to be able to hear more of the controllers call outs in future launches.

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Re: Indian Space Programme Discussion - Sept 2016

Postby sudhan » 29 Mar 2018 18:45

Parfaarmans naarmal..

<snore>GSLV Mk2, doesn tickle the pickle anymore.. </snore>

I guess the lungi will be deployed after the Chandrayaan Rover plants its short, dark, thin, wobbly and quaking wheels on the Moon..

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Re: Indian Space Programme Discussion - Sept 2016

Postby SSridhar » 29 Mar 2018 18:54

That was a fabulous launch with very precise injection of GSAT-6A.

Several improvements tested out for future use:
  • Uprated Vikas
  • Full utilization of LoX & LH in the cryogenic stage
  • Electro-mechanical actuators
  • Indigenous Li-Ion batteries

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Re: Indian Space Programme Discussion - Sept 2016

Postby dnivas » 29 Mar 2018 18:54

excellent work ISRO. way to go

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Re: Indian Space Programme Discussion - Sept 2016

Postby shiv » 29 Mar 2018 19:01

was there some launch today?

Singha
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Re: Indian Space Programme Discussion - Sept 2016

Postby Singha » 29 Mar 2018 19:02

why was mk2 used when mk3 is tested?

JayS
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Re: Indian Space Programme Discussion - Sept 2016

Postby JayS » 29 Mar 2018 19:14

Singha wrote:why was mk2 used when mk3 is tested?

Because of 2T satellite perhaps..?

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Re: Indian Space Programme Discussion - Sept 2016

Postby Philip » 29 Mar 2018 20:25

Missed the launch.Why didn't our other channels not feature it live like before? As usual some scandal or the other this time the CBSE exam paper leak fiasco igniting the whole country.CBSE chief on leave!

Anyway, hats off to ISRO.There must be celebrations both at SHK, BLR and in the watering holes in service messes since this baby is for the forces.May there be many more to come.

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Re: Indian Space Programme Discussion - Sept 2016

Postby Vips » 29 Mar 2018 20:29

YYaaawwwwnnnnn. Vanilla PSLV and GSLV launches are now like ST buses leaving their depots (for us), ISRO needs to infuse some enthu. Waiting for the next significant steps Chandrayaan 2, GSLV MK III with Semi Cryo engines and later the ULV launch.

Varoon Shekhar
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Re: Indian Space Programme Discussion - Sept 2016

Postby Varoon Shekhar » 29 Mar 2018 20:47

SSridhar wrote:That was a fabulous launch with very precise injection of GSAT-6A.

Several improvements tested out for future use:
  • Uprated Vikas
  • Full utilization of LoX & LH in the cryogenic stage
  • Electro-mechanical actuators
  • Indigenous Li-Ion batteries


Great launch, congrats. Is the electromechanical actuator system made by ISRO? That is not clear, though it is powered by ISRO developed Lithium Ion batteries. Also, would the full utilisation of the propellant lead to noticeable improvement in accuracy and/or payload.
Last edited by Varoon Shekhar on 29 Mar 2018 20:51, edited 1 time in total.

Bob V
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Re: Indian Space Programme Discussion - Sept 2016

Postby Bob V » 29 Mar 2018 20:50

juvva wrote:I thought it was a much better broadcast from DD.
The cameras tracked the vehicle well during lift off and initial phase of flight, without losing sight of the vehicle as happened during some earlier launch coverage's. Also the resolution of the video seemed to be better (HD?).


Yep. The camera tracking was much much better this time. No shakes / involuntary motions and booster separation was captured via multiple angles. Another novelty was the live feed from the 3rd stage during orbit (all those flat earthers can run back to their holes now :P) & also the feed from inside the heat shield during the payload separation. Good going! Hope they better it next time.

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Re: Indian Space Programme Discussion - Sept 2016

Postby JayS » 29 Mar 2018 20:53

Varoon Shekhar wrote:
SSridhar wrote:That was a fabulous launch with very precise injection of GSAT-6A.

Several improvements tested out for future use:
  • Uprated Vikas
  • Full utilization of LoX & LH in the cryogenic stage
  • Electro-mechanical actuators
  • Indigenous Li-Ion batteries


Great launch, congrats. Is the electromechanical actuator system made by ISRO? That is not clear, though it is powered by ISRO developed Lithium Ion batteries. Also, would the full utilisation of the propellant lead to noticeable improvement in accuracy and/or payload.


ISRO developed actualtors for LCA. If they have the tech for electomechanical actuators now, AMCA can use them, giving significant edge to it.

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Re: Indian Space Programme Discussion - Sept 2016

Postby SSridhar » 29 Mar 2018 21:17

Post launch speeches hinted at commercial exploitation of GSLV.

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Re: Indian Space Programme Discussion - Sept 2016

Postby SaiK » 29 Mar 2018 21:49

I read all BRF posts since launch. All appear par-forming naarmal - nirmal sign. I heard the improvement for greater than 2.5 ton validations. Can anyone tell more details of how much tonnage now we can launch? 4T?

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Re: Indian Space Programme Discussion - Sept 2016

Postby Prem » 29 Mar 2018 22:14


Ashokk
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Re: Indian Space Programme Discussion - Sept 2016

Postby Ashokk » 29 Mar 2018 22:45


Ashokk
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Re: Indian Space Programme Discussion - Sept 2016

Postby Ashokk » 29 Mar 2018 23:06

Target parameters:
Perigee: 170 km
Apogee: 35,975 km
Inclination: 20.63 deg

Achieved parameters:
Perigee: 169.4 km
Apogee: 36,692 km
Inclination: 20.64 deg
Last edited by Ashokk on 29 Mar 2018 23:51, edited 1 time in total.

JTull
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Re: Indian Space Programme Discussion - Sept 2016

Postby JTull » 29 Mar 2018 23:43

In the after-launch speeches someone said 68kg increase in payload. This 50% increase is a misquote.


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