Author Topic: NavIC/IRNSS discussion  (Read 28387 times)

Offline Ohsin

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Re: IRNSS discussion
« Reply #20 on: 01/08/2016 04:19 AM »
« Last Edit: 01/08/2016 06:44 AM by Ohsin »
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline seshagirib

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Re: IRNSS discussion
« Reply #21 on: 01/08/2016 04:29 AM »
Four more being built to serve as backup.

http://Http://indianexpress.com/article/india/india-news-india/isro-works-on-4-back-up-satellites-for-irnss/

fixed link : http://indianexpress.com/article/india/india-news-india/isro-works-on-4-back-up-satellites-for-irnss/

I wonder, what is the shelf life of these spare Sats. I suppose they must be stored in special environmental chambers?
Not clear from the article if these will be ground based or in orbit spares.

Offline Stan Black

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Re: IRNSS discussion
« Reply #22 on: 01/08/2016 07:36 AM »
Four more being built to serve as backup.

http://Http://indianexpress.com/article/india/india-news-india/isro-works-on-4-back-up-satellites-for-irnss/

fixed link : http://indianexpress.com/article/india/india-news-india/isro-works-on-4-back-up-satellites-for-irnss/

I wonder, what is the shelf life of these spare Sats. I suppose they must be stored in special environmental chambers?
Not clear from the article if these will be ground based or in orbit spares.

http://forum.nasaspaceflight.com/index.php?topic=36710.0

Offline Ohsin

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Re: IRNSS discussion
« Reply #23 on: 01/08/2016 10:21 AM »
Source of above screencap @13m30s



"Well, three cheers to Sharma, but our real baby is INSAT."

Offline worldtimedate

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Re: IRNSS discussion
« Reply #24 on: 01/11/2016 06:54 AM »
All IRNSS satellites to be in orbit by March: ISRO official

Quote

All the seven satellites of Indian Regional Navigation Satellite System (IRNSS) are expected to be in the orbit by March 2016, a top Indian Space Research Organisation official today.

IRNSS-1E is slated for launch on January 20 from the space port of Sriharikota in Andhra Pradesh.

"...from the regional navigation point of view, earlier we had launched four satellites. Another satellite IRNSS-1E is on the launch pad. It is slated for launch on January 20," ISRO Satellite Centre (ISAC) Director M Annadurai said.

He said (IRNSS) 1F and 1G satellites were also in the very advanced stages of integration at the Bangalore satellite centre.

"..by March 31st we want to have all the seven satellites constellation in place," he said.



worldtimedate [ http://www.world-timedate.com/ ]

Offline vyoma

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Re: IRNSS discussion
« Reply #25 on: 01/21/2016 03:49 AM »
http://www.newindianexpress.com/states/tamil_nadu/Coming-July-Mobile-Handsets-May-Sport-Indigenous-GPS/2016/01/21/article3237211.ece

Quote
Moving quickly to fulfil the plan to replace the US-run Global Positioning System (GPS) with an indigenous navigation system provided by IRNSS, the ISRO held a meeting with mobile phone makers and developers at Bengaluru recently. If all goes as per plan, the switch might happen by July 2016.

“During this meet, the ISRO had recommended fitting a small hardware in hand-held devices, mobile phones and including a code in the existing mobile software by which the devices can receive signals (L-Band and S-Band) from the satellite,” ISRO sources told Express.

Offline vyoma

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Re: IRNSS discussion
« Reply #26 on: 01/28/2016 12:39 PM »
http://www.business-standard.com/article/pti-stories/kineco-kaman-s-antenna-put-into-orbit-via-isro-satellite-116012800647_1.html

Quote
Kineco Kaman Composites India (KKCI) has become the first private company in India to manufacture a Dual Helix Antenna Array (DHAA) assembly, which was launched into the space aboard ISRO's fifth Indian Regional Navigation Satellite (IRNSS-1E) this month.

"The DHAA assembly is a very complex and high precision structure made using a combination of Carbon and Aramid Composites. The manufacturing of this DHAA requires hi-tech engineering and manufacturing competence, benchmarked with the best in the world," said Shekhar Sardessai, Chairman and MD, Kineco Kaman Composites-India Private Limited.

Offline input~2

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Re: IRNSS discussion
« Reply #27 on: 02/05/2016 07:18 PM »
Quote
A budget of `1420 Crores has been approved by the Government for the realisation of IRNSS programme including satellites and associated ground segment.
http://dos.gov.in/sites/default/files/LS%20243.pdf

Offline kanaka

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Re: IRNSS discussion
« Reply #28 on: 02/06/2016 10:13 AM »
Quote
A budget of `1420 Crores has been approved by the Government for the realisation of IRNSS programme including satellites and associated ground segment.
http://dos.gov.in/sites/default/files/LS%20243.pdf

Aditya is more of fantasy than addressing needs. The funds can be diverted to IRNSS instead and Aditya can be postponed. ROI on Aditya mission could be very minimal.

Offline Ohsin

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Re: IRNSS discussion
« Reply #29 on: 02/12/2016 04:57 PM »


Mentioning IRNSS extension chairman was quite specific when he said gulf and Korean side. Keep in mind recent MoU with UAE mentions satellite navigation.
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline beidou

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Re: IRNSS discussion
« Reply #30 on: 02/13/2016 07:00 PM »
recent MoU with UAE mentions satellite navigation.

Do you mean India will collaborate with NK and UAE to expand IRNSS to these regions?

Offline Ohsin

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Re: IRNSS discussion
« Reply #31 on: 02/13/2016 10:28 PM »
recent MoU with UAE mentions satellite navigation.

Do you mean India will collaborate with NK and UAE to expand IRNSS to these regions?

I mean South Koreans. Yes just speculating as accuracy drops around those parts.
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline worldtimedate

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Re: IRNSS discussion
« Reply #32 on: 02/20/2016 07:26 AM »
ISRO Chairman has confirmed that the last two IRNSS satellites would be launched on March 10 and March 31 this year.

Quote
On ISRO’s future plans, the Chairman said the remaining two satellites of IRNSS series would be launched on March 10 and March 31 this year.

Source : More satellites needed to meet rising space-tech demand: ISRO


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Offline vineethgk

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Re: IRNSS discussion
« Reply #33 on: 02/20/2016 08:04 AM »
If they manage to do it, I guess this must be the first time they are attempting two launches in the same month? But the March 31 kind of looks slippery to me though..

Offline vyoma

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Re: IRNSS discussion
« Reply #34 on: 08/13/2016 04:55 AM »
« Last Edit: 08/13/2016 05:32 AM by vyoma »

Offline vyoma

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« Last Edit: 08/26/2016 07:54 AM by vyoma »

Offline vyoma

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Re: NavIC/IRNSS discussion
« Reply #36 on: 09/02/2016 02:46 AM »
http://www.thehindu.com/todays-paper/tp-national/tp-karnataka/industry-to-build-isros-two-spare-navigation-satellites/article9062751.ece

Quote
ISRO is finalising plans to get two spare navigation satellites of its IRNSS fleet built by industry in the next two years.

It will handhold industry for the first project and build it by March 2017. The second one will be built entirely by industry, M. Annadurai, Director of ISRO Satellite Centre, said on Thursday. Both will be 1,400-kg spares kept ready on ground.

Quote
‘Technical bid soon’

Dr. Annadurai said ISRO plans to go to the next level and issue the request for proposal — the technical bid — “in weeks” to interested companies from both, public and private sectors.

The bids are planned to be evaluated and a final consortium to be identified by October, so that the spacecraft can be ready by March 2017. The second spacecraft is aimed for a year thereafter, but will be built by industry using ISRO’s designs and under its watch.

Offline vyoma

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Re: NavIC/IRNSS discussion
« Reply #37 on: 09/02/2016 03:40 AM »
Here's the EoI by ISRO/SAC for industries to build two satellites: https://forum.nasaspaceflight.com/index.php?topic=32023.msg1568924#msg1568924

Offline vyoma

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Re: NavIC/IRNSS discussion
« Reply #38 on: 09/03/2016 11:01 PM »
Quote
Description of the Opportunity
Space Applications Centre (SAC), Indian Space Research Organization (ISRO), Department of Space (DOS), Government of India, declares an “Announcement of Opportunity (AO)” to carry out scientific research under “IRNSS/GAGAN Data Utilization Program”.

Quote
Who can submit a proposal?
Proposals could be submitted by individuals or a group of scientists and academicians belonging to recognized institutions, universities, government and private organizations of India. Only those having at least a minimum remaining service of four years before superannuation are eligible to lead the project as PI/Co-PI. The proposals must be forwarded through the Head of the Institution, with appropriate assurance for providing necessary facilities for carrying out the projects under this AO program.

Data availability
The data from GAGAN is continuously being collected since 2005 and can be provided however, IRNSS data will be made available by July, 2017.

http://www.sac.gov.in/SACSITE/AO_IRNSS_GAGAN_UP_March23_FINAL__2016.pdf
« Last Edit: 09/03/2016 11:01 PM by vyoma »

Offline vineethgk

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Re: NavIC/IRNSS discussion
« Reply #39 on: 09/07/2016 04:01 PM »
A report from few days back..

Isro plans to launch first privately built satellite by March

Quote
India’s space agency, Indian Space Research Organisation (Isro), plans to launch a navigation satellite that it would build jointly with a private firm, by March next year, beginning a process to outsource satellite manufacturing and free its resources to focus on research and deep space missions.
Are they really planning to launch it by next March, or is this just a mis-reporting? I thought they just meant to have them built as ground spares. Also, can they get the satellite built so soon?

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