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PSLV C10, TecSAR (Polaris) - January 21, 2008 by Satori on 20 Sep, 2007 13:46
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Starting this thread for the next Indian launch...
From The Jerusalem Post Israel to launch spy satellite in India! -
#1 by tappa on 21 Sep, 2007 09:26
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#2 by Satori on 21 Sep, 2007 12:11
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Quote
tappa - 21/9/2007 4:26 AM
Some more info on the launch here... ISRO braces for launch of military satellite
This launch is getting interesting. The media still says that Polaris and CartoSat-2A will be launched toghether, but the latest informations point to the fact that Polaris will be launched on October 3 and CartoSat-2A will be launched in December. So, let's wait and see... -
#3 by William Graham on 21 Sep, 2007 17:50
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Is there likley to be a webcast?
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#4 by Satori on 23 Sep, 2007 20:30
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GW_Simulations - 21/9/2007 12:50 PM
Is there likley to be a webcast?
I wouldn't expect a webcast of this launch because of it's military nature. -
#5 by annu on 24 Sep, 2007 09:16
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Quote
Satori - 21/9/2007 6:11 PM
This launch is getting interesting. The media still says that Polaris and CartoSat-2A will be launched toghether, but the latest informations point to the fact that Polaris will be launched on October 3 and CartoSat-2A will be launched in December. So, let's wait and see...
From discussions in other forums it appears that Polaris ( Let us hope that's the real name .. it has changed at least thrice ) will be in an orbit with inclination of 130 to 150 deg. Cartosat has about 98 deg also the altitude appears to be very different for each of them so it may not be easy to accomodate both together.
Also isro-watch reports that [ on 31/8/2007 1:30 AM (#181846 - in reply to #14589) ] next pslv has only Polaris.
Yes this launch is getting interesting!
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#6 by s^3 on 24 Sep, 2007 10:29
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As per http://directory.eoportal.org/pres_TecSARSARTechnologyDemonstrationSatellite.html
Tecsar ( Polaris ) will have following orbit.
Sun-synchronous circular orbit, altitude of 550 km, inclination = 143.3º, 15.22 orbits/day, repeat cycle of 36 days. It has a launch weight of 300 Kgs.
While the Cartosat 2A should have ( Exact replica of Cartosat 2 ):
Altitude = 637 Kms, Inclination = 98 deg and Launch mass = 680 Kgs.
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There are 2 querries..
Is it possible for a rocket to steer about 45 deg while rising from 550 Kms to 635 Kms?
Also whether the PSLV spacecraft bay will be able to accomodate both the satellites?
Some experts on launch vehicles should be able to comment.
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S^3 -
#7 by William Graham on 25 Sep, 2007 06:53
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A PSLV-CA (the light version) could easily manage the combined masses of the two spacecraft. Not sure about steering, probably not possible, but CartoSat-2A could be going to a different orbit to CartoSat-2. I don't know about the physical size of the spacecraft.
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#8 by Satori on 01 Oct, 2007 22:44
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Will this launch go on October 3? Until this time there are no references on the ISRO page about the forthcoming launch. This news about a delay of the launch (that was schedule for September 20th) is very interesting!!!
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#9 by annu on 03 Oct, 2007 05:07
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Heard that POLARIS has been taken back to Israel by the furious Israelis.
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#10 by hornbill2007 on 03 Oct, 2007 09:14
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annu - 3/10/2007 9:07 AM
Heard that POLARIS has been taken back to Israel by the furious Israelis.
Please post the source when such serious developments are discussed.
Chau. -
#11 by Satori on 03 Oct, 2007 12:03
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hornbill2007 - 3/10/2007 4:14 AM
Quoteannu - 3/10/2007 9:07 AM
Heard that POLARIS has been taken back to Israel by the furious Israelis.
Please post the source when such serious developments are discussed.
Chau.
We are dealing with a military subject here, so it apears to be obvious that some sources cannot be nammed for their own security. -
#12 by Satori on 03 Oct, 2007 14:23
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At this time we know nothing about this launch. I'm assuming it was delayed or canceled...
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#13 by hornbill2007 on 04 Oct, 2007 06:49
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Don't we need at least some published material as source?
Anyways reviewing ISRO officials' statements earlier, the target for the twin launch is end of the year. So, I believe, this technical delay must have been factored into the schedule. -
#14 by Satori on 04 Oct, 2007 15:35
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hornbill2007 - 4/10/2007 1:49 AM
Don't we need at least some published material as source?
Anyways reviewing ISRO officials' statements earlier, the target for the twin launch is end of the year. So, I believe, this technical delay must have been factored into the schedule.
Well, if our sources near ISRO with some material to work with, we don't need that published material.
As I said before, this is a very interesting launch. See, first we had the news that we would have a israeli military satellite to be launched toghether with a indian military satellite (respectively, Polaris (TechSAR) and CartoSat-2A). In the beggining there was even the doubt that CartoSat-2A really existed. In fact, and after some months, we had the confirmation that there was CartoSat-2A indeed.
So we would have a indian launch with a double military cargo. Some weeks before the launch, that was schedule to take place at the end of September, there were some news that the PSLV wasn't capable to carry both sats. To be honest I find this really strange. So, there was the decision to launch Polaris alone. Then the launch date was unofficialy announced to be October 3 and after this we had the rumors that the israelis were not happy for the all world to know the launch date some days before and decided to scrub the launch contract and to take their nice satellite back to Israel.
Now we know that the ISRO director has said that the launch would take place before the year's end wainting to resolve some kind of thecnical problem that arose with the launch vehicle.
India is planning to launch another PSLV before 2007 becomes to old and this one with CartoSat-2A and a few more microsats.
Maybe hornbill2007 is right; maybe this technical delay was factored into the schedule to wait for the dust to settle down and then try to launch Polaris when we are looking other way.
So, once again with this very secretive launch we have to wait and see what happens -
#15 by ximig on 05 Oct, 2007 13:29
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hahhahhahha~~~
the up annalization is quite reasonable!!!
It's so interesting!! -
#16 by Leroy on 05 Oct, 2007 19:10
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Quote
ximig - 5/10/2007 8:29 AM
Well, what do you want to say? This analyzation is right or not right? Do you knew anything veryfied about subject?
hahhahhahha~~~
the up annalization is quite reasonable!!!
It's so interesting!! -
#17 by annu on 06 Oct, 2007 06:37
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WE had discussed following :
1. Is it possible to launch BOTH Polaris and Carto-2A together?
2. Israelis have taken back the satellite ( that was of course without any proof)
etc.
Does this report make it possible?
http://www.domain-b.com/aero/June/2007/20070611_military.htm
"According to reports, the Cartosat 2A will carry an advanced synthetic aperture radar (SAR) made by Israel and a digital camera with a resolution of less than one metre. "
Israeli SAR on Cartosat-2A as a second payload? Also in such circumstances Isarelis can bring the SAR and 'go back' empty handed. -
#18 by Leroy on 06 Oct, 2007 09:50
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TecSAR (aka Polaris) is independence satellite, and it exist.
Launch of TecSAR must be alone, which TecSAR need to take a retrograd orbite (to West direction), as Ofeq-type satellites. -
#19 by Skyrocket on 06 Oct, 2007 09:55
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The retrograde orbit reportet is from a time, when TECSAR ws to be launched by Shavit. My israelian source told me, that TECSAR will be launched in eastern direction (without specifying it)
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#20 by William Graham on 06 Oct, 2007 10:01
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Theoretically, could Polaris transfer back to Shavit?
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#21 by Leroy on 06 Oct, 2007 10:57
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Skyrocket - 6/10/2007 4:55 AM
My Israelian source told me, what TecSAR will be launched in western direction. It is very unusually, but I trust to my source.
The retrograde orbit reportet is from a time, when TECSAR ws to be launched by Shavit. My israelian source told me, that TECSAR will be launched in eastern direction (without specifying it) -
#22 by William Graham on 06 Oct, 2007 12:37
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Leroy - 6/10/2007 11:57 AM
QuoteSkyrocket - 6/10/2007 4:55 AM
My Israelian source told me, what TecSAR will be launched in western direction. It is very unusually, but I trust to my source.
The retrograde orbit reportet is from a time, when TECSAR ws to be launched by Shavit. My israelian source told me, that TECSAR will be launched in eastern direction (without specifying it)
No chance. A retrograde orbit from Sriharikota would require that the rocket overfly a good portion of India. That is very unlikely for saftey reasons. -
#23 by annu on 06 Oct, 2007 16:24
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GW_Simulations - 6/10/2007 6:37 PM
QuoteLeroy - 6/10/2007 11:57 AM
QuoteSkyrocket - 6/10/2007 4:55 AM
My Israelian source told me, what TecSAR will be launched in western direction. It is very unusually, but I trust to my source.
The retrograde orbit reportet is from a time, when TECSAR ws to be launched by Shavit. My israelian source told me, that TECSAR will be launched in eastern direction (without specifying it)
No chance. A retrograde orbit from Sriharikota would require that the rocket overfly a good portion of India. That is very unlikely for saftey reasons.
No, it is not necessary that it has to fly over India for retrograde orbit. You can launch it at a proper time to achieve such an orbit.
BTW, ALL Indian Remote sensing satellites have retrograde orbit ( around 98 deg Inclination ) and for a Sun Synchronous orbit this is an essential condition.
Basically both the friends of Leroy and Skyrocket are correct because each of them must be thinking of a different time of launch. -
#24 by annu on 07 Oct, 2007 08:44
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There is warning from ISRO to fishermen around Shriharokota that the fishermen should stay away from venturing into sea during 14th Oct and 24th Oct 2007.
So that seems to be the likely slot for PSLV C10.
http://www.newindpress.com/NewsItems.asp?ID=IE920071006022833&Page=9&Headline=Satellite+launch+worries+these+fishermen&Title=Chennai&Topic=0& -
#25 by ximig on 09 Oct, 2007 00:15
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Quote
Leroy - 5/10/2007 2:10 PM
Quoteximig - 5/10/2007 8:29 AM
Well, what do you want to say? This analyzation is right or not right? Do you knew anything veryfied about subject?
hahhahhahha~~~
the up annalization is quite reasonable!!!
It's so interesting!!
There is warning from ISRO to fishermen around Shriharokota that the fishermen should stay away from venturing into sea during 14th Oct and 24th Oct 2007.
and acoording to http://www.a013.com/wiki/2007_in_spaceflight
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#26 by William Graham on 09 Oct, 2007 06:25
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ximig - 9/10/2007 1:15 AM
and acoording to http://www.a013.com/wiki/2007_in_spaceflight
That's a mirror of Wikipedia. The information about the PSLV dates there was based on the information in the warning to fishermen. -
#27 by annu on 09 Oct, 2007 14:26
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GW_Simulations - 9/10/2007 12:25 PM
Quoteximig - 9/10/2007 1:15 AM
and acoording to http://www.a013.com/wiki/2007_in_spaceflight
That's a mirror of Wikipedia. The information about the PSLV dates there was based on the information in the warning to fishermen.
Who will/had updated it? -
#28 by Leroy on 09 Oct, 2007 17:46
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According nameless sources, TecSAR launch postponded to December because of unclear (non-technical) reasons.
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#29 by Satori on 10 Oct, 2007 03:04
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Leroy - 9/10/2007 12:46 PM
According nameless sources, TecSAR launch postponded to December because of unclear (non-technical) reasons.
It's interesting! Maybe we will have Polaris and Cartosat-2A all over again? -
#30 by Hanan on 10 Oct, 2007 03:16
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Yesterday evening on Israel Channel 10 news they said in a very short excerpt the satellite is stuck in India until unknown date for many reasons among them monsoon storms hiting the launching region, although the user is eagerly needing it.
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#31 by s^3 on 10 Oct, 2007 04:36
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Welcome Hanan to this forum.
Congratulations for your 1st post.
Thanks for the very informative input.
( Oh, 3 cheers: Welcome, Congrats and Thanks too ) -
#32 by Leroy on 10 Oct, 2007 09:59
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According Yediot Ahronot newspaper, USA strongly press to India...
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#33 by Olaf on 10 Oct, 2007 13:06
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Leroy - 10/10/2007 4:59 AM
According Yediot Ahronot newspaper, USA strongly press to India...
Pressure im which direction, to launch or not to launch? -
#34 by Leroy on 10 Oct, 2007 19:36
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Quote
Olaf - 10/10/2007 8:06 AM
To delay...QuoteLeroy - 10/10/2007 4:59 AM
According Yediot Ahronot newspaper, USA strongly press to India...
Pressure im which direction, to launch or not to launch? -
#35 by William Graham on 10 Oct, 2007 20:30
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Quote
Leroy - 10/10/2007 8:36 PM
QuoteOlaf - 10/10/2007 8:06 AM
To delay...QuoteLeroy - 10/10/2007 4:59 AM
According Yediot Ahronot newspaper, USA strongly press to India...
Pressure im which direction, to launch or not to launch?
Why? -
#36 by s^3 on 11 Oct, 2007 05:11
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Yes, that is the question. WHY
?
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S^3 -
#37 by Olaf on 11 Oct, 2007 14:38
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s^3 - 10/10/2007 12:11 AM
Yes, that is the question. WHY?
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S^3
That was my question, too. -
#38 by annu on 11 Oct, 2007 16:59
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Any guess Olaf? Actually both have a same target in mind.
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#39 by Leroy on 12 Oct, 2007 06:14
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Quote
GW_Simulations - 10/10/2007 3:30 PM
Why?!!QuoteLeroy - 10/10/2007 8:36 PM
QuoteOlaf - 10/10/2007 8:06 AM
To delay...QuoteLeroy - 10/10/2007 4:59 AM
According Yediot Ahronot newspaper, USA strongly press to India...
Pressure im which direction, to launch or not to launch?
Why? -
#40 by William Graham on 23 Oct, 2007 13:53
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According to NASA's Space Calendar, launch is scheduled for tomorrow (24 October).
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#41 by Satori on 23 Oct, 2007 18:09
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GW_Simulations - 23/10/2007 8:53 AM
According to NASA's Space Calendar, launch is scheduled for tomorrow (24 October).
Any other source giving this date? One that we can say its reliable?
With how many hours in advance does the PSLV needs to be on the pad before any launch? -
#42 by Hannibal on 23 Oct, 2007 18:26
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GW_Simulations - 23/10/2007 8:53 AM
According to NASA's Space Calendar, launch is scheduled for tomorrow (24 October).
It's a very doubtly, since IAI engineers team is in Israel now. -
#43 by Skyrocket on 23 Oct, 2007 22:24
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GW_Simulations - 23/10/2007 3:53 PM
According to NASA's Space Calendar, launch is scheduled for tomorrow (24 October).
This is incorrect - the launch has been postponed to 2008 - according to an israeli aerospace insider.
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#44 by annu on 25 Oct, 2007 03:57
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At last 14 to 24 Oct slot for PSLV is over.
No more agony of wait and watch. -
#45 by Satori on 05 Dec, 2007 14:14
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Amid rumores that this launch was delayed because of US pressures, it looks like the launch was schedule for this week. See Satellite launch delayed again.
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#46 by Satori on 30 Dec, 2007 13:35
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According to Novosti Kosmonavtiki website (in russian), India will launch Polaris on January 2.
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#47 by isro-watch on 31 Dec, 2007 14:08
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launch on january 12th...
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#48 by Jirka Dlouhy on 31 Dec, 2007 14:20
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Why the launch of Polaris moves to 12th of january?
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#49 by isro-watch on 02 Jan, 2008 07:35
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well, i don't know why they planned it on "jan12th"....but the launch is for sure around 12th(+/-) 1/2 days
most probably on 12th...i will soon confirm it with any sort of media reports which appear here. -
#50 by osiossim on 07 Jan, 2008 08:23
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http://www.spacewar.com/reports/Israeli_Spy_Satellite_Launch_Likely_In_First_Quarter_999.html
http://www.hindu.com/thehindu/holnus/008200801051521.htm
Israeli Spy Satellite Launch Likely In First Quarter -
#51 by Hannibal on 07 Jan, 2008 17:02
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Nevermore...
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#52 by Hanan on 08 Jan, 2008 02:45
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Israel Channel 10 has recycled same news adding little: launching is expected "on next weeks", was postponed because of monsoon and "launcher technical malfunctions".
http://news.nana10.co.il/Article/?ArticleID=530973 -
#53 by Satori on 13 Jan, 2008 14:18
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Polaris PSLV launch is now schedule for January 21st at 0457UTC.
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#54 by isro-watch on 19 Jan, 2008 13:49
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Polaris launch between 9.00 to 9.30 AM local time....that is about 3.30am-4.00am (Greenwich meridian time)...
there has been no official confirmation as yet but i m sure of a launch at this time...if covered live, u can get it's webcast at www.ndtv.com .....but i m not sure of it...as it is expected to be a low key affair...any further info will be put here as and when it comes...
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#55 by William Graham on 20 Jan, 2008 22:52
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Is this still on schedule? If it is, we can expect a launch in a little over three and a half hours.
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#56 by hornbill2007 on 21 Jan, 2008 03:53
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NDTV reports that there has been a launch today from Shriharikotta. But ISRO neither confirming nor denying. So, has Polaris finally been orbitted?
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#57 by astropl on 21 Jan, 2008 05:43
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hornbill2007 - 21/1/2008 5:53 AM
NDTV reports that there has been a launch today from Shriharikotta. But ISRO neither confirming nor denying. So, has Polaris finally been orbitted?
Flash info from http://www.hindu.com :
India launches Israeli satellite 'Polaris' from the spaceport at Sriharikota.
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#58 by tappa on 21 Jan, 2008 06:14
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Another news report confirming launch ISRO launches Israeli satellite on NDTV.
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#59 by astropl on 21 Jan, 2008 06:42
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hornbill2007 - 21/1/2008 5:53 AM
NDTV reports that there has been a launch today from Shriharikotta. But ISRO neither confirming nor denying. So, has Polaris finally been orbitted?
Lauch was successful (http://www.ynetnews.com/articles/0,7340,L-3496764,00.html):
"The satellite was launched at 5:45 am (GMT) from east India, with both Israeli and Indian space engineers commanding the process. Some 80 minutes after the launch, the Israel Aerospace Industries' (IAI) ground station began receiving TECSAR's first signals. " -
#60 by William Graham on 21 Jan, 2008 06:51
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Quote
astropl - 21/1/2008 7:42 AM
Quotehornbill2007 - 21/1/2008 5:53 AM
NDTV reports that there has been a launch today from Shriharikotta. But ISRO neither confirming nor denying. So, has Polaris finally been orbitted?
Lauch was successful (http://www.ynetnews.com/articles/0,7340,L-3496764,00.html):
"The satellite was launched at 5:45 am (GMT) from east India, with both Israeli and Indian space engineers commanding the process. Some 80 minutes after the launch, the Israel Aerospace Industries' (IAI) ground station began receiving TECSAR's first signals. "
Time is wrong. Hornbill2007 posted at 04:53 GMT to say that there had been a launch, so it must have been before that. I'd go with http://www.hindu.com/thehindu/holnus/000200801211321.htm , which reports a launch at 09:15 (presumably IST), which is 03:45 GMT. -
#61 by Yantar on 21 Jan, 2008 08:27
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Here, an article from Israel Aerospace Industries, the contractors.
http://www.iai.co.il/Default.aspx?docID=37907&FolderID=32981&lang=EN -
#62 by tappa on 21 Jan, 2008 09:03
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#63 by Satori on 21 Jan, 2008 12:39
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#64 by prajiv on 22 Jan, 2008 13:20
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I read somewhere- that Israel is going provide a "clone" of techsar/tecsar/polaries to India and possibly technology also.Is it true?
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#65 by isro-watch on 22 Jan, 2008 14:48
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yeah, the CARTOSAT-2A satellite indeed looks like an techsar clone...it will indeed be launched by PSLV C9.... this sat never figures in isro's calenders or any magazines and is being launched in a hurry, ahead of oceansat-2...it indeed contains SAR...so it may be that techsar clone...
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#66 by annu on 22 Jan, 2008 14:49
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Quote
prajiv - 22/1/2008 7:20 PM
I read somewhere- that Israel is going provide a "clone" of techsar/tecsar/polaries to India and possibly technology also.Is it true?
Are U sure that Tecsar itself will not be shared/used on pay basis? -
#67 by isro-watch on 22 Jan, 2008 14:51
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the launch took place at 9.15 IST exactly...there were no hiccups in the countdown...nor any slightest deviation from the planned trajectory...i watched it live on internal isro video...
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#68 by annu on 22 Jan, 2008 14:53
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isro-watch - 22/1/2008 8:48 PM
yeah, the CARTOSAT-2A satellite indeed looks like an techsar clone...it will indeed be launched by PSLV C9.... this sat never figures in isro's calenders or any magazines and is being launched in a hurry, ahead of oceansat-2...it indeed contains SAR...so it may be that techsar clone...
Techsar is a SAR.... a radar satellite.
From all the guesses Cartosat-2A seems to be a replica of Cartosat-2 ... no SAR.
Both satellites appear to be totally different types. -
#69 by isro-watch on 22 Jan, 2008 14:56
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i m not sure about that...but i m sure that cartosat-2a carries a israeli SAR and is not MADE BY ISRO satellite...
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#70 by osiossim on 23 Jan, 2008 06:59
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So, do you say that Cartosat-2A is something like Alos? Which carries both SAR and Optical payloads?
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#71 by s^3 on 23 Jan, 2008 12:35
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osiossim - 23/1/2008 1:59 PM
So, do you say that Cartosat-2A is something like Alos? Which carries both SAR and Optical payloads?
NO.
I ( repeat I ) checked Cartosat-2A data system prior to its dispatch to launch site.
THERE IS NO SAR OR RADAR. It has a purely INDIAN optical sensor repeated from an earlier Indian satellite. Nothing more. -
#72 by fightingfalcon on 23 Jan, 2008 12:46
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ISRO may get more satellite launch contracts
One of the prime but domestic contracts, which may be coming up in February, is Cartosat-2A. Mr Nair said the spacecraft, built at the Bangalore satellite centre, “has just been shifted today”. The earth observation satellite is a Ministry of Defence mission, with no details coming from ISRO.
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#73 by Satori on 24 Jan, 2008 12:43
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A promo video about TecSAR is available here.
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#74 by s^3 on 25 Jan, 2008 04:35
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Satori - 24/1/2008 7:43 PM
A promo video about TecSAR is available here.
Correct link: http://www.dc-epaper.com/deccanchronicle/Default.aspx?selpg=14372
( The other link given changes the contents from day to day )
?