Author Topic: "ISRO EO sat" & 25-30 foreign small sats - PSLV C42 - August 2018  (Read 2237 times)

Offline input~2

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A potential payload for PSLV C42 is SSTL-S1, a 450 kg Earth observation satellite  manufatured and owned by SSTL for Chinese private company 21AT Co. Ltd (via reddit)

http://www.satnews.com/story.php?number=1952793509
https://www.ecns.cn/2018/02-09/292099.shtml

Quote
The satellite will be launched on the Indian Space Research Organisation's Polar rocket in August.
« Last Edit: 06/16/2018 04:11 PM by input~2 »

Offline K210

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Re: SSTL-S1? - PSLV C42 - August 2018
« Reply #1 on: 04/18/2018 12:29 PM »
NovaSAR-S could also be a co-passenger on this flight. It was supposed to be launched on board C40 mission in January but was delayed for some reason.

NovaSAR-S details:

Mass: 430 kg
Manufacturer: SSTL
Country: UK
Payload: SAR

Source: http://space.skyrocket.de/doc_sdat/novasar-s.htm

Offline K210

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Re: SSTL-S1? - PSLV C42 - August 2018
« Reply #2 on: 06/16/2018 11:28 AM »
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“We are looking at including 25 to 30 small satellites of foreign customers in the next PSLV launch depending on the configuration. They may total 250 kg,” said Rakesh Sasibhushan, Chairman and Managing Director of Antrix Corporation Ltd, which exports ISRO’s products and services.

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C-42 would have new customers as well as repeat users of the Indian launch vehicle, he told The Hindu. The main load in it from ISRO could weigh around 800-1,000 kg.

Mr. Sasibhushan said the international launch market was “looking very good” and Antrix had sought two fully commercial launches (i.e., without an ISRO satellite) each year from the space agency.

According to this article PSLV C-42 will have 25-30 small satelites onboard with total mass of around 250 kg as well as a primary payload from isro with mass of 800-1000 kg.

Source: http://www.thehindu.com/sci-tech/science/isro-plans-next-launch-mission-in-aug/article24175171.ece

Offline Steven Pietrobon

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

Offline ZachS09

I would not be surprised if ISRO decides at the last minute to launch a Cartosat 2G instead of Cartosat 3.
« Last Edit: 06/17/2018 02:44 AM by ZachS09 »
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline K210

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From this article the nominees for this launch are

Cartosat 3
Oceansat 3
RISAT 1A

https://www.hindustantimes.com/science/chandrayaan-2-oceansat-3-isro-s-launch-plans-in-2018/story-KEZikZnvCSSvgARD9Y59QN.html

We can rule out RISAT-1A due to the lift off mass of 1858kg. The article says primary payload will be between 800-1000 kg. According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

I'm willing to bet the primary payload are two commercial 450 kg satelites (SSTL-S1 and novasar-s) or some satelites we dont know about that isro has in development.
« Last Edit: 06/17/2018 05:08 AM by K210 »

Offline Steven Pietrobon

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According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

Do you have a link for the ISRO manifest? I couldn't find it on the ISRO website. This page only lists GSAT 11, Chandrayaan-2 and GSAT 29.

https://www.isro.gov.in/missions
« Last Edit: 06/18/2018 07:15 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Looks like Centauri I from Fleet is flying on this mission.

http://www.manmonthly.com.au/news/fleet-space-technologies-unveils-launch-partners-first-nanosatellite-launches/

Australian Internet of Things (IoT) startup, Fleet Space Technologies, has today announced launch plans for its first two nanosatellites, Centauri I and II, in 2018.

Fleet Space Technologies has announced that the first of its nanosatellites is under contract to launch with Spaceflight aboard an Indian Polar Satellite Launch Vehicle (PSLV) by Antrix/ISRO. This satellite will establish a global network that will connect the world’s sensors and devices, for free. Just one satellite has the ability to cover 90% of the Earth.
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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According to isros own manifest however both cartosat-3 and oceansat-3 wont be ready till october/november so unless those satelites are ready ahead of time i dont think it will be them either.

Do you have a link for the ISRO manifest? I couldn't find it on the ISRO website. This page only lists GSAT 11, Chandrayaan-2 and GSAT 29.

https://www.isro.gov.in/missions

ISAC manifest attached. Note that the quarter dates are based on indian financial year which begins in april and ends in march of next year. So Q3 would indicate a time somewhere September - December


Offline Steven Pietrobon

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Thanks K210! Perhaps the ISRO payload is EMISAT, which was scheduled to be available in the first quarter of 2018.

http://space.skyrocket.de/doc_sdat/emisat.htm
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Space Lizard

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Thanks K210! Perhaps the ISRO payload is EMISAT, which was scheduled to be available in the first quarter of 2018.

http://space.skyrocket.de/doc_sdat/emisat.htm
At about 400 kg, that still falls short of the 800-1000 kg description.
I watch rockets

Offline input~2

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Crossposting:
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As the Commission is aware, BlackSky is under a tight timetable to ship its
Global-1 satellite on July 15, 2018, for a September launch.

Global-1 is on a PSLV flight.
Does this mean that PSLV C42 launch date is pushed to the right into September?

Offline Steven Pietrobon

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Presumably. Strange that ISRO hasn't listed this mission on their website.

https://www.isro.gov.in/missions
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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