Author Topic: Navid-e Elm-o Sanat Safir launch February 3, 2012  (Read 26444 times)

Offline Liss

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #20 on: 02/03/2012 07:18 pm »
Elsets are on at last! Objects 38075 and 38076.
Orbits are:
A -- 56.02į, 271x379 km, 90.99 min
B -- 56.03į, 269x373 km, 90.91 min
« Last Edit: 02/03/2012 08:00 pm by Liss »
This message reflects my personal opinion based on open sources of information.

Offline ChileVerde

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #21 on: 02/03/2012 07:27 pm »
The lack of Two-Lines from this launch on the Space-Track website makes a launch failure more and more likely.

On the other hand, the orbital inclination could be so different from the two earlier satellites that the satellite and upper stage are being tracked but not yet assigned to this launch.


The first tracking data has just appeared on Space Track. I can't just copy the TLE because of useage rules, but think that it's probably OK to say that it shows the statellite to be in a 375 x 276 km orbit at 56 degrees inclination.

Edit: There are slightly different ways to compute apogee and perigee, so the numbers above shouldn't be taken as significantly different from those Liss posted.
« Last Edit: 02/03/2012 07:30 pm by ChileVerde »
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Offline Liss

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #22 on: 02/03/2012 07:38 pm »
Of course. Mine are from propagating one orbit and reportin minimum aand maximum heights over 6378.14 km.
I'd say launch time was close to 00:10 UTC = 03:40 local time.
This message reflects my personal opinion based on open sources of information.

Offline Phillip Clark

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #23 on: 02/03/2012 07:49 pm »
Thank you Igor - Jonathan has just posted on Facebook with an 00:04 UT launch time estimated.
I've always been crazy but it's kept me from going insane - WJ.

Offline ChileVerde

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #24 on: 02/03/2012 07:57 pm »


FWIW, I applied

Cos(Orbit Inclination) = Cos(Launch Site Latitude)*Sin(Launch Azimuth)

and came up with the launch trajectory shown in the attached figure.  If it's correct, I wonder if Iran let Turkmenistan, Uzbekistan, Kazakhstan know they were going to be overflown.
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Offline Nahavandi

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Offline Liss

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #26 on: 02/03/2012 08:11 pm »
No, they've launched south-east.
This message reflects my personal opinion based on open sources of information.

Offline jcm

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #27 on: 02/03/2012 08:20 pm »
My calculations give 0004 UTC +/- 1 min on Feb 4 using the TLEs and comparing with the Rasad launch (whose launch time was announced).

Bob says he gets 0004:40 UTC.

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Offline Skyrocket

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #28 on: 02/03/2012 08:23 pm »
This persian article mentions something about an improved upper stage with 20% more propulsion power (if i understand it correctly from the Google-translation):

http://jamejamonline.ir/newstext.aspx?newsnum=100803210565



Offline ChileVerde

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #29 on: 02/03/2012 08:25 pm »
No, they've launched south-east.

Oops, not the first time I've gotten things like that wrong.  Do you have a launch azimuth?
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Offline Nahavandi

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #30 on: 02/03/2012 08:52 pm »
Vehicle serial number : ERS2002
« Last Edit: 02/03/2012 08:54 pm by Nahavandi »

Offline Nahavandi

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #31 on: 02/03/2012 09:00 pm »
No, they've launched south-east.

First images from the Iranian ground station

Offline jcm

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #32 on: 02/03/2012 09:03 pm »
Vehicle serial number : ERS2002


Interesting. Earlier launches were OES.0001, OES.0002, UIS.0001.

One could speculate the letters are related to the payloads (Omid, Omid, Rasad, Navid), and that the first digit being '2' in this case reflects the block change in the Safir (thrust upgrade).

This article http://irna.ir/News/Politic/Satellite-%E2%80%98Promise-of-Science,-Industry%E2%80%99-put-on-orbit-successfully,-Defense-Min/30795827
says that the satellite was built by Sharif Univ of Technology, rather than by IUST as the earlier stories had claimed. They translate the name as 'Promise of Science and Industry'. I guess "Navid' is one of those all-purpose words :-)
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Offline ChileVerde

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #33 on: 02/03/2012 09:07 pm »
First images from the Iranian ground station

Very useful, thanks.
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Offline ChileVerde

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #34 on: 02/03/2012 09:10 pm »
First images from the Iranian ground station

Do you know what navid1.jpg is showing?  What are the green parabolas?
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Online William Graham

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Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #35 on: 02/03/2012 09:11 pm »
Vehicle serial number : ERS2002


Interesting. Earlier launches were OES.0001, OES.0002, UIS.0001.

One could speculate the letters are related to the payloads (Omid, Omid, Rasad, Navid), and that the first digit being '2' in this case reflects the block change in the Safir (thrust upgrade).

Wasn't Rasad reported to be a block 2 though?

Also, I would say the upper stage in the video looks wider than those on previous launches, and as somebody mentioned before, the initial ascent does seem slightly slower than the previous launches suggesting that the rocket has a greater mass.

Offline Satori

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Re: Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #36 on: 02/03/2012 09:16 pm »
A new thread dedicated for this launch!

Offline Nahavandi

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Re: Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #37 on: 02/03/2012 09:37 pm »
An extensive video on the development and launch of the Navid:



I wonder when n2yo.com will pick it up .
« Last Edit: 02/03/2012 09:46 pm by Nahavandi »

Offline Nahavandi

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Re: Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #38 on: 02/03/2012 09:43 pm »
First images from the Iranian ground station

Do you know what navid1.jpg is showing?  What are the green parabolas?

Those are ground stations:
Quote
The satellite will fly a two-month mission and is controlled via five ground stations, one each in the cities of Karaj, Tabriz, Qeshm, Bushehr and Mashhad, Iranian space officials said.

http://www.space.com/14464-iran-launches-small-satellite-orbit.html

Offline Nahavandi

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Re: Navid-e Elm-o Sanat Safir launch February 3, 2012
« Reply #39 on: 02/03/2012 10:11 pm »
Ground stations located on the map of Iran , I assume that some of them are stationary and some of them are mobile . 

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