Author Topic: HySIS & 30 foreign small sats - PSLV C43- FLP - November 29, 2018 (04:27 UTC)  (Read 20463 times)

Offline Steven Pietrobon

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ISRO Chairman wrapping up. Next mission in 19 or 20 days.
« Last Edit: 11/29/2018 05:48 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline K210

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Re: commentator coverage
Is the pattern to announce in English first, then translate into Hindi?  Or vice-versa?
Or is there no pattern?

There is no pattern most of the time. Hindi commentator is speaking advanced hindi that even 90% of hindi speakers wont understand while the english commentator is often at a loss for words or repeating moot points. The english commentary this time around was especially bad with commentator getting many things wrong or just speaking nonsense.

Best to ignore commentary and just watch the launch.

Offline Steven Pietrobon

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End of coverage.

Congratulations to ISRO and all the satellite customers for the successful launch!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Shams

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Congratulations to ISRO scientists for successful launch of 31 satellites

Offline anik

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Offline input~2

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1st object cataloged:

2018-096A/43719 in 628 x 648 km x 97.97

Offline K210

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Onboard Camera Video is out: (If YT link does not work use original link however keep in mind it has a much slower player)



Original: https://www.isro.gov.in/pslv-c43-hysis-mission/lift-and-onboard-camera-view-of-pslv-c43-hysis-launch
« Last Edit: 11/29/2018 08:24 pm by K210 »

Offline TheVarun

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[quote a
Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center[/quote]
68th launch of what rockets? Only orbital? Orbital and suborbital?
[/quote]

Hmmm, let's try- 4 SLV-3 missions, 4 ASLV missions, 45 PSLV's, 12 GSLV Mark1 &2, 3 GSLV Mark 3

Yah, it adds up to 68, and the number includes the failures, 9 in all( 1 SLV-3, 2 ASLV, 2 PSLV, 4 GSLV Mark [email protected])

Off the top of my head, not bad eh? :D  ISRO doesn't include the off target or sub-orbital injections as failures, as long as the satellite in the mission did function( two after manoeuvering from ground control)  and provide valuable data for at least some time. A couple of those satellites had a brief sojourn in space( Rohini-3, SROSS-3) while others lasted/are still lasting pretty much for their expected lifespan( IRS-ID, INSAT 4CR) or not far from it.

It looks like ISRO is not counting the RLV-TD and the Scramjet launches in the 68 figure, supposedly since no satellite or payload was ejected.

Offline Chris Bergin

Thanks so much to Steven for the coverage......got to HySIS and tried staying up for the cubesats, but 6am was too much for me ;D

William's article post launch:
https://www.nasaspaceflight.com/2018/11/pslv-hysis-launch-numerous-co-passengers/

Offline K210

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Some new photos of the launch:

Offline worldtimedate

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Today's launch is the 68th launch ( both Orbital and Sub-Orbital ) and 67th Orbital launch from Satish Dhawan Space Center.

ISRO's 45th overall launch was a sub-orbital launch that was the first flight and sub-orbital development test flight of GSLV MK-III erstwhile known as LVM3-X carrying CARE module on December 18, 2014.

Here is the breakdown of the launches

SLV-3       -     4
ASLV       -     4
PSLV       -      45
GSLV MK-II   -      12
GSLV MK-III   -       3 ( 1 Sub-Orbital )
-----------------------------------------------------------------
Total       -      68 ( 67 Orbital + 1 Sub-Orbital )
« Last Edit: 11/29/2018 07:38 pm by worldtimedate »

Offline William Graham

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Today's launch of PSLV-C43 will be the 68th launch from Satish Dhawan Space Center

68th launch of what rockets? Only orbital? Orbital and suborbital?

Today's launch is the 68th launch ( both Orbital and Sub-Orbital ) and 67th Orbital launch from Satish Dhawan Space Center.

ISRO's 45th overall launch was a sub-orbital launch that was the first flight and sub-orbital development test flight of GSLV MK-III erstwhile known as LVM3-X carrying CARE module on December 18, 2014.


The key with this, as with all ISRO statistics, is the exact wording. They are claiming it as the 68th "launch vehicle mission" from SHAR. So flights, including suborbital test flights, of orbital launch systems. In terms of overall launches from Satish Dhawan, or the Sriharikota High Altitude Range as it was formerly known, this would be closer to the 600th launch than the 68th.

Jonathan McDowell lists 519 suborbital launches across his records of space-going, mesospheric and atmospheric flights (https://planet4589.org/space/lvdb/list2.html). This doesn't include the RLV test launch, so adding in this and the orbital launches gives a minimum count of 587 (137 of which reached space). That's just from a very quick count of one source, so may be missing other launches as well, but the point is, there have been a lot more than 68 launches from SHAR.

Offline worldtimedate

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This is the second time when ISRO has done 2 launches in a month.

First instance of 2 launches in a month :
--------------------------------------------------
September  8, 2016 --> GSLV Mk II F05 successfully launched INSAT-3DR
September 26, 2016 --> PSLV C35 successfully launched its payloads [ ScatSat-1, 5 foreign and 2 student satellites ] into two different orbits.

Second instance of 2 launches in a month :
--------------------------------------------------
November 14, 2018 --> GSLV Mk III D2 successfully launched GSAT-29 in its second development flight
November 29, 2018 --> PSLV C43 launched HySis and 30 other foreign satellites

In the first instance, the gap between 2 launches in a month was 18 days
and this time in the second instance, the gap between 2 launches in a month is 15 days

So, ISRO has improved its launch frequency and lessened the interval period between two launches in a month

Except for the above-mentioned instances, never before has ISRO done 2 launch missions with the such less overlapping interval between 2 launches not only in a month, but also the launch period stretching to the next month.

ISRO's first 25 launches has taken 30 years from 1979 to 2008. But then next 25 launches has taken only 8 years. It is from the tenure of former ISRO Chairman A. Kiran Kumar, ISRO's frequency of launch mission has gained momentum. So, in the upcoming years, we wouldn't be surprised if ISRO crosses the 100 launches in the next 4 to 5 years or even before.
« Last Edit: 11/30/2018 08:21 am by worldtimedate »

Offline TheVarun

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 ^
Not to nitpick, but actually 5th. Apart from the two you mentioned, there were the launches of GSLV Mark 2 and Mark 3 on May 5/2017 and June 5/2017 respectively.  Less than 3 weeks after the Mark 3, a PSLV with 31 satellites went up on June 23/2017.

 Earlier this year, a GSLV Mark 2( carrying the errant GSAT-6A) and a PSLV with the IRNSS-1I, were launched within 2 weeks, March 29 and April 12 respectively.

 Who would have thought in the late 80's and early 90's, when ISRO was struggling with the ASLV, that it would be one day, launching far more sophisticated vehicles successfully within a few weeks of each other :). You just know that there was a lot of cynicism back then, including calls to cancel the wasteful and failed programme!
« Last Edit: 11/30/2018 03:02 pm by TheVarun »


Offline sanjaykumar

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« Last Edit: 12/02/2018 07:44 pm by sanjaykumar »

Offline worldtimedate

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ISRO has released hyperspectral data captured by Hysis

Glimpse of HyperSpectral Data Captured by HySIS
https://www.isro.gov.in/update/07-dec-2018/glimpse-of-hyperspectral-data-captured-hysis

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