PSLV carries 10 satellites into orbit

thomasantony

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Hey,
ISRO's PSLV launched 10 satellites into orbit today. Its PSLV's 12th successful launch.:speakcool:

It seems the manned missions will be in a Gemini style capsule. It says here there will be two astronauts in each mission.

http://www.hinduonnet.com/thehindu/holnus/000200804281654.htm
http://science.slashdot.org/science/08/04/28/1311213.shtml

Some excerpts from news articles:

India on Monday created history, launching ten satellites in one go with its Polar launch vehicle carrying the heaviest payload of 824 kg. The ten-pack launch of the Indian Space Research Organisation (ISRO) saw the 230-tonne Polar Satellite Launch Vehicle (PSLV-C9) put into orbit an Indian Mini Satellite and eight foreign nano satellites besides the Cartosat-2A remote sensing satellite.
This is for the first time that ISRO has put ten satellites into orbit in a single launch.

"We have showed the world we can have multiple launches carried out in a precise manner. We have set a record. Only Russia had so far tried to launch 13 satellites in a single launch and I am not sure whether that was successful," he told reporters here.

The PSLV-C9, in its total flight of 1,151 seconds, has performed extremely well. "It's much better than a text book performance. Every system functioned as per the parameters," Nair said.

He said while USD 0.6 million was charged for the nano satellites, it cost around Rs 120 crore for the CARTOSAT and Rs 22 crore for the IMS-1.

"We hope by the third quarter of this year, we should be able to take out the satellite to the moon." He said ISRO planned to induct indigenous cryogenic stage into the GSLV soon.

Vikram Sarabhai Space Centre Director K Radhakrishnan, who was also present at the launch, said ISRO had started designing space capsules to send two astronauts on a low earth orbit in the next seven years for the manned mission to space. Considering the safety of the crew and vehicle, which will be the GSLV, the design aspects were taken up very seriously and there would be an unmanned mission before sending the astronauts, Radhakrishnan said.

"The manned mission is necessary for the country as Russia, China and some major European countries and the US were already in the scenario as prominent players," he said. Before the manned mission, there would be three unmanned missions which would be undertaken BY GSLV MK-III. The government had already made an initial allotment Rs 95 crore for the mission, he said.

The PSLV blasted off from the second launch pad at the Satish Dhawan Space Centre at 9.24 am and fourteen minutes later, the fourth stage injected the ten satellites into the 635 km polar Sun Synchronous Orbit (SSO).

This is the thirteenth flight of PSLV and the third with the 'core-alone' configuration, without the hugging six strap-on booster motors that powers the first stage. CARTOSAT-2A weighing about 690 kg carries a state-of-the-art Panchromatic camera (PAN) that can record high clarity images covering a swathe of 9.6 kms.

The 83 kg IMS-1, developed by ISRO, incorporated many new technologies and has miniaturised subsystems. Data from it will be shared with other developing countries. The eight Nano Satellites, built by universities and research institutions in Canada and Germany, were launched under a commercial agreement.
:cheers::speakcool:

~
Thomas
 
The launch support provided by ISRO to the various nanosatellite owners is absolutely pathetic.
The Dutch nanosatellite team only found out where their satellite was after asking NORAD for the data. The Danish satellite team was told the wrong orbital elements by ISRO. I find it highly worrying that ISRO doesn't even know what orbit they put their satellites into, initially they said the satellites were launch 1.3 minutes late. But looking at the elements it seems they were launched AT LEAST 5 minutes early.
ISRO have a lot of work to do before they even think about a manned mission.
 
The Delfi-C3 has been in the news here. In the news they say it's the fourth completely Dutch satellite, though I don't know how they are counting exactly. If the two Dutch ESA-astronauts count as completely Dutch, that would give an interesting 2-to-1 ratio of satellites-to-astronauts.

Edit:
The claim about it being "the fourth Dutch satellite in history" is even made on the project's website, but the first three aren't named. I'm afraid these three would include the ANS and IRAS telescopes, while especially IRAS includes significant contributions from NASA and a British institute. BTW, even the micro-budget Delfi-C3 itself contains foreign contributions (the launch vehicle for instance :whistle:).
 
ISRO never provided any additional information to any of it's customers, it seems. A good way to prevent yourself from having any future customers.:rofl:


Cjp, according to NORAD there are 5 dutch objects currently in orbit, not including the Delfi-C3.

1. NSS-6
2. NSS-7
3. NSS 806
4. NSS-5
5. NSS-703

Also, it's very rare to have a satellite that is entirely from one nation. The last time this happened was probably during the cold war by the soviets.

The russians use bits of ukrainian stuff, the americans use european stuff, the indians use european and american stuff while the chinese use everyone's stuff (occasionally without permission :p)
 
Cjp, according to NORAD there are 5 dutch objects currently in orbit, not including the Delfi-C3.

1. NSS-6
2. NSS-7
3. NSS 806
4. NSS-5
5. NSS-703

Never heard of those. What kind of satellites are they? Searching on NSS only brings me to http://www.nss.org/. While they do seem to have something in the Netherlands (maybe their headquarters - some organizations have a very small official headquarters in the Netherlands for legal/tax/other reasons), they don't look like an organization that actually makes their own satellites.
 
NSS-x are operated by SES New Skies, not the NSS. Formerly known as New Skies Satellites.

And SES is a Luxembourg based company, BTW.

http://en.wikipedia.org/wiki/SES_New_Skies

I found NSS 806: It's an old Intelsat 806, and according to your Wikipedia page, SES is Luxembourgian, but SES New Skies is Dutch. So, that explains everything: the satellites mentioned by Simonpro weren't created in the Netherlands: instead, they were purchased by the Dutch part of a Luxembourgh-based company.

Well, who cares, anyway.
 
ISRO never provided any additional information to any of it's customers, it seems. A good way to prevent yourself from having any future customers.:rofl:
...

Can you give me a solid refernce or something on that? I am an Indian after all and I am planning to write a letter to the editor of the leading daily in midst of all those congratulatory letters. .. It may have SOME effect.
 
I found NSS 806: It's an old Intelsat 806, and according to your Wikipedia page, SES is Luxembourgian, but SES New Skies is Dutch. So, that explains everything: the satellites mentioned by Simonpro weren't created in the Netherlands: instead, they were purchased by the Dutch part of a Luxembourgh-based company.

Well, who cares, anyway.

There would have also been an NSS-8 if it hadn't blown up in the Sea Launch explosion a year ago: http://en.wikipedia.org/wiki/NSS-8

(Google video / Youtube are filled with this "rocket explosion" clip)

MT
 
ISRO never provided any additional information to any of it's customers, it seems. A good way to prevent yourself from having any future customers.:rofl:

Why do you suppose this is? Lack of tracking stations? Reliability issues? Other?

MT
 
The BBC has woken up

The BBC should go back to sleep, they spelled "Arianespace" wrong ;)

Can you give me a solid refernce or something on that?

No, the only reason I know this is because I'm involved in two of the nanosat missions. They seem to have provided more information to some customers than others, and none of the customers have the information they'd ideally like. Try checking the blogs of some of those involved to find out more.

Why do you suppose this is? Lack of tracking stations? Reliability issues? Other?

I don't think the Indians have the capability of tracking a nanosatellite. What was supposed to happen is that the satellites are ejected one by one, spaced out at somerthing like 1.5minutes between each ejection. This means you should be able to figure out which is which by examining the elements (which NORAD provides) and getting a list of ejection order from ISRO. ISRO should also provide an initial set of elements based on the rocket body.

The NORAD part was done, but at least on the teams I have knowledge of ISRO never provided the ejection order or the initial elements.





Re: NSS satellites, yeah they're not really Dutch but they are operated by the Dutch from Holland: So that, apparently, makes them Dutch.
There doesn't appear to be any other Dutch satellites though, and I'm a bit confused as to why the numbers don't match. Will try to figure it out.
 
ISRO never provided any additional information to any of it's customers, it seems. A good way to prevent yourself from having any future customers.:rofl:


Cjp, according to NORAD there are 5 dutch objects currently in orbit, not including the Delfi-C3.

1. NSS-6
2. NSS-7
3. NSS 806
4. NSS-5
5. NSS-703

Also, it's very rare to have a satellite that is entirely from one nation. The last time this happened was probably during the cold war by the soviets.

The russians use bits of ukrainian stuff, the americans use european stuff, the indians use european and american stuff while the chinese use everyone's stuff (occasionally without permission :p)

Re: satellite from one nation.
One example http://members.aol.com/nicholashl/ukspace/blackarrow/blackarrow.htm

with the Prospero satellite:-
http://technology.timesonline.co.uk/tol/news/tech_and_web/specials/space/article2537570.ece

and that was the end of a potentially viable UK rocket programme.

N.
 
Just noticed this:
"We have showed the world we can have multiple launches carried out in a precise manner. We have set a record. Only Russia had so far tried to launch 13 satellites in a single launch and I am not sure whether that was successful," he told reporters here.

Only Russia has tried to orbit 13 (and they were successful), but America has orbited more than ten, as has Russia on several occasions. IRSO has set no record here.

Sorry if I am sounding harsh, but the various completely false claims they're making really piss me off.

On a slightly happier note it now seems that all nanosatellite owners have eventually found their satellites, and all satellites are working as required.
Nice one to all involved.
 
Hmm
I did some research on the net. Russia did launch 13/16 ( depending on the source ) satellites on a Dnepr-1 rocket on 17 April 2007.

http://www.satnews.com/stories2007/4309/

I couldn't find much about US multi-sat launches. The only one I found was the THEMIS launch on a Delta II on Feb 17 2007. It consisted of 5 probes.

http://www.space-travel.com/reports...st_East_Coast_Launch_A_Total_Success_999.html
http://www.sciencedaily.com/releases/2007/01/070110181206.htm

In fact most of the search results about multi-satellite launches come up saying India's is launch is second largest no. of satellites in one launch after Russia's.

Oh and here is an interview with the ISRO chief:
http://howrah.org/india_news/11066.html

The measure of the total mission comes in terms of the orbital accuracy that is achieved. Normally, we can allow upto 35 km dispersion in altitude, and something like 0.1 degree in the inclination. Against this, what we have achieved is of the order of less than 7 km in altitude, and 0.005 degree in inclination. That shows that the targeting was precise and we don't have to use much on-board fuel to correct the orbit.
Good?

~
Thomas
 
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