ISRO General News and Updates

[Chinmoy]

ISRO realigns orbit of Mangalyaan

http://timesofindia.indiatimes.com/...-orbit-of-mangalyaan/articleshow/56674464.cms

 

[Indx TechStyle]

Tentative launch schedule

2017
Feb 8 15 02:59 ~03:00 UTC - PSLV(XL)-C37 (FLP) - Cartosat-2D + INS-1A + INS-1B + 100 nanosats (Germany, Israel, Kazakhstan, NL, Switzerland, USA)
March or April - GSLV Mk III D1 (SLP) - GSAT-19
end March - GSLV Mk II F09 (SLP) - GSAT-9 (aka South Asia Sat)
April/May- PSLV C38 - EMIsat ?+SPaDEx ? + 3 Diamonds (Australia) + Venta-1 + Max Valier
NET July - GSLV Mk II F11 - GSAT-6A
- PSLV - 8 Skysat-C (tbc)
December - PSLV - Cartosat-2E
December 28 - PSLV - Team Indus Lunar Lander/ Rover + Team Hakuto Rover
piggybacked on PSLV: Microsat, PlanetiQ-1, PlanetiQ-2, InnoSat-2 (Malaysia), CE-SAT1 (Japan), Niusat, IITMSAT

Q1- Ariane 5 - GSAT-11
Q1- Ariane 5 - GSAT-17

2018
March - PSLV - Cartosat-3
July - PSLV - Oceansat-3
Q3 - PSLV - EnMap (Germany)
- GSLV Mk II F12 - GSAT-7A
- GSLV Mk II F10 - GISAT (GEO Imaging SATellite)
(or December 2017) - GSLV Mk III D2 - GSAT-20
December - GSLV Mk II D9 - Chandrayaan-2

piggybacked on PSLV : IMS(Indian Mini Satellite)/Atmos, IMS-1E, IMS-1F, IinuSat, IMS-B, PARIKSHIT, NEMO-AM (FY 2018-19)

2019
March - PSLV - Cartosat-3A
Q2 - PSLV - RISAT-1A
- PSLV XL - Aditiya-1
December or 2020 - PSLV - Oceansat-3A

piggybacked on PSLV: HYSIS

2020
March - PSLV - Cartosat-3B
- PSLV - RISAT-2A
Q2 - PSLV - Resourcesat-3S
Q2 - PSLV - Resourcesat-3
- PSLV? - MOM-2

2021
Q2 - PSLV - Resourcesat-3SA
Q2 - PSLV - Resourcesat-3A
- GSLV MkII - NISAR (NASA-ISRO SAR sat)

2022
Q1 - PSLV - Resourcesat-3B
- GSLV MkII - Insat-3DS

2024
- GSLV MkIII - First manned mission

 

[Indx TechStyle]

In a few days from now, the rocket’s complete cryogenic third stage, replete with fuel tanks and systems built around the engine, will undergo its qualifying test, S. Somanath, Director of ISRO’s Liquid Propulsion Systems Centre (LPSC), Thiruvananthapuram, told The Hindu.

“LPSC has designed and developed the CE20 engine. We are assembling the entire cryogenic stage, which is ready for flight. It will be sent to Sriharikota in a month’s time,” he said.

http://www.thehindu.com/news/nation...-paves-way-for-GSLV-MkIII/article17063002.ece

 

[PD_Solo]

Tentative launch schedule

2017
Feb 8 15 02:59 ~03:00 UTC - PSLV(XL)-C37 (FLP) - Cartosat-2D + INS-1A + INS-1B + 100 nanosats (Germany, Israel, Kazakhstan, NL, Switzerland, USA)
March or April - GSLV Mk III D1 (SLP) - GSAT-19
end March - GSLV Mk II F09 (SLP) - GSAT-9 (aka South Asia Sat)
April/May- PSLV C38 - EMIsat ?+SPaDEx ? + 3 Diamonds (Australia) + Venta-1 + Max Valier
NET July - GSLV Mk II F11 - GSAT-6A
- PSLV - 8 Skysat-C (tbc)
December - PSLV - Cartosat-2E
December 28 - PSLV - Team Indus Lunar Lander/ Rover + Team Hakuto Rover
piggybacked on PSLV: Microsat, PlanetiQ-1, PlanetiQ-2, InnoSat-2 (Malaysia), CE-SAT1 (Japan), Niusat, IITMSAT

Q1- Ariane 5 - GSAT-11
Q1- Ariane 5 - GSAT-17

2018
March - PSLV - Cartosat-3
July - PSLV - Oceansat-3
Q3 - PSLV - EnMap (Germany)
- GSLV Mk II F12 - GSAT-7A
- GSLV Mk II F10 - GISAT (GEO Imaging SATellite)
(or December 2017) - GSLV Mk III D2 - GSAT-20
December - GSLV Mk II D9 - Chandrayaan-2

piggybacked on PSLV : IMS(Indian Mini Satellite)/Atmos, IMS-1E, IMS-1F, IinuSat, IMS-B, PARIKSHIT, NEMO-AM (FY 2018-19)

2019
March - PSLV - Cartosat-3A
Q2 - PSLV - RISAT-1A
- PSLV XL - Aditiya-1
December or 2020 - PSLV - Oceansat-3A

piggybacked on PSLV: HYSIS

2020
March - PSLV - Cartosat-3B
- PSLV - RISAT-2A
Q2 - PSLV - Resourcesat-3S
Q2 - PSLV - Resourcesat-3
- PSLV? - MOM-2

2021
Q2 - PSLV - Resourcesat-3SA
Q2 - PSLV - Resourcesat-3A
- GSLV MkII - NISAR (NASA-ISRO SAR sat)

2022
Q1 - PSLV - Resourcesat-3B
- GSLV MkII - Insat-3DS

2024
- GSLV MkIII - First manned mission

Good to see IITMSAT with the Indus and Hakuto.This also shows how foreigners trust the PSLV.[emoji58] [emoji58] [emoji58]

Is Anpad Suparco involved in South Asia sat ?

Sent from my XT1068 using Tapatalk

 

[Indx TechStyle]

Is Anpad Suparco involved in South Asia sat ?

I don't think India will allow to install suicide bombing software in satellite, so no.[emoji38]
Anyway, GSAT-9 and SAARC satellite are same. #Justtelling

 

[Chinmoy]

VSSC Director explains how Isro will place record-breaking 103 satellites in orbit in February

http://tech.firstpost.com/news-analysis/vssc-director-explains-how-isro-will-place-record-breaking-103-satellites-in-orbit-in-february-358648.html

 

[Indx TechStyle]

Story of the Week - Indian Space Research Organization
Long Eclipse Avoidance Manoeuvres Performed Successfully on MOM Spacecraft

 

[Indx TechStyle]

Jan 26, 2017
ISRO Successfully Tests C25 Cryogenic Upper Stage of GSLV MkIII

Indian Space Research Organisation (ISRO) successfully ground tested its indigenously developed Cryogenic Upper Stage for GSLV MkIII on January 25, 2017. The cryogenic stage designated as C25 was tested for a duration of 50 seconds at ISRO Propulsion Complex (IPRC) in Mahendragiri demonstrating all the stage operations. The performance of the Stage during the test was as predicted. This is the first test in a series of two tests. The next test is planned for flight duration of 640 seconds.

The 50 second test is a significant milestone in the development of indigenous cryogenic propulsion technology. The successful hot test of the stage in the first attempt itself demonstrates ISRO’s ability to work in new areas like cryogenic technology.

The development of C25 cryogenic stage began with the approval of GSLV MKIII, the next generation launch vehicle of ISRO, capable of launching 4 ton class spacecraft in Geosynchronous Transfer Orbit (GTO). The vehicle consists of two solid strap-on motors (S200), one earth storable liquid core stage (L110) and the cryogenic stage upper stage (C25).

The C25 stage was conceptualised, designed and realised by Liquid Propulsion Systems Centre (LPSC), ISRO’s lead Centre for Propulsion, with support from various System Development Agencies from other three Centres of ISRO – Vikram Sarabhai Space Centre (VSSC), ISRO Propulsion Complex (IPRC) and Sathish Dhawan Space Centre (SDSC) SHAR. The fabrication of various sub-systems of the engine and the stage was carried out through Indian Industries.

The C25 stage is the most powerful upper stage developed by ISRO and uses Liquid Oxygen (LOX) and Liquid Hydrogen (LH2) propellant combination. The stage carries 27.8 tons of propellants loaded in two independent tanks.

Development of a cryogenic stage has unique design challenges, with liquid Hydrogen stored at -253 deg C and liquid Oxygen stored at -195 deg C in its tanks. To store these cryogenic fluids, special multi-layer insulation is provided for the tanks and other structures.

The first flight stage for GSLV MkIII-D1 mission is in advanced stage of realisation. The flight engine has been successfully tested in the High Altitude Test (HAT) facility and integrated with the flight stage.

If I'm not wrong then, C25 is to be utilized in India's future HLLVs also.

 

[kurup]

One observation ....... CS still using the open inter-tank structure .... unlike the CGI showing otherwise .

 

[Indx TechStyle]

ISRO’s new push for global share
70 engineers of local industry being trained to assemble, test satellites.

The effort is to make Indian industries proficient in space technology so that they can meet the demands of Indian and global markets.

Bengaluru: About 70 engineers of a local industry are getting the hang of assembling and testing satellites inside Indian Space Research Organisation Satellite Centre, Bengaluru, as the space agency has decided to provide India Inc the launch pad to reach for a slice of the multi-billion-dollar global satellite market.

To start with, these engineers will learn the ropes through a contract worth a couple of crores of ruppees for rolling out two satellites, both stand-by for configuration of seven satellites which constitute the Indian Regional Navi-gation Satellite System (IRNSS) constellation scheduled to be dedicated to the nation shortly by Prime Minister Narendra Modi. If these engineers are successful in manufacturing and testing both satellites within the next 18 months, ISRO is likely to place an order for a couple of communication satellites with the same team.

The next step will be to bid for manufacture of satellites for the global market. “It’s just the beginning. The effort is to make Indian industries proficient in space technology so that they can meet the demands of Indian and global markets. It will be a significant achievement if the industries capture even a fraction of the global satellite market,” A.S. Kiran Kumar, chairman, ISRO, told this newspaper.

Sources in ISRO said the IRNSS constellation will have a footprint of 1,500 km around the country, covering all sea routes, as well as support studies in remote sensing, plate tectonic movement, and those related to the ionosphere. In case one of these seven satellites is hit by a snag, the space agency ought to launch a replacement and cannot manage by leasing a transponder from other satellites.

Therefore, the space agency planned two spare satellites, and picked Alpha Design Technologies, the lowest bidder, for on-the-job training as well as assembly, integration and testing of satellites. “A follow up order is likely for some communication satellites if the two IRNSS satellites are integrated and tested within a year-and-a half” sources said adding that eventually ISRO will pass on the responsibility of rolling out commercial satellites to the companies so that its engineers and scientists could focus on R&D projects and new technologies.

On its part, Alpha Design Technologies has decided to build a state-of-the-art satellite manufacturing, assembly, integration, testing and qualification facilities over the next two years in order to be prepared for follow-up orders from ISRO. “It is a significant step for us. As part of the contract, initially our teams will get ISRO supervision and later independently make complete satellites,” says Col. H.S. Shankar, chairman and managing director, Alpha Design Technologies.

 

[Indx TechStyle]

So, each IRNSS satellite will have 4 Rubidium clocks and a private company SpectraTime won contract to make them.
https://www.orolia.com/pdf/IRNSS_Contract.pdf

We need to start working on new atomic clocks ASAP.

 

[Chinmoy]

Something from Chinese perspective..........

India-China rivalry reaches into orbit and beyond

https://www.ft.com/content/5a51f648-e4ac-11e6-8405-9e5580d6e5fb

 

[Chinmoy]

India to launch standby navigation satellite

http://www.business-standard.com/ar...ndby-navigation-satellite-117013000586_1.html

 

[Akshay_Fenix]

3 atomic clocks fail on IRNSS sat. Swiss junk.

 

[indiatester]

India to launch standby navigation satellite

http://www.business-standard.com/ar...ndby-navigation-satellite-117013000586_1.html

3 atomic clocks fail on IRNSS sat. Swiss junk.

3 atomic clocks failing on the same satellite is bad. No matter how you spin that hardware can fail. This is a serious quality problem.

 

[wuzetian]

3 atomic clocks failing on the same satellite is bad. No matter how you spin that hardware can fail. This is a serious quality problem.

True . I hope the Chinese didn't upload a virus to fail the clocks . Maybe they could be doing a trial run to do during war to disable our navigation systems inorder to make our missiles inaccurate.

 

[Akshay_Fenix]

True . I hope the Chinese didn't upload a virus to fail the clocks . Maybe they could be doing a trial run to do during war to disable our navigation systems inorder to make our missiles inaccurate.

Even the chinese use the swiss made atomic clocks.

 

[wuzetian]

Even the chinese use the swiss made atomic clocks.

So they definitely know the weakness of the system and using it they attacked and discreetly disabled the ISRO rubidium clocks .

 

[Indx TechStyle]

Even the chinese use the swiss made atomic clocks.

@Martian once posted about that China tested it's atomic clocks I guess.

 

[mayfair]

The same problem with the atomic clocks as reported in the Galileo navigation system as well, not surprising since they were sourced from the same company. In their case 9 of their clocks have developed snags, but then they have 18 satellites up there.

It should be noted that these are IRNSS-1A clocks that have developed snags. This was the first of the IRNSS satellites to be launched in 2013, the clocks failed after three and a half years.

It's unclear if the clocks for the subsequent satellites were ordered all at once or in batches. If it's only the first lot that had these glitches, then the other satellites should be OK. But if the entire lot is faulty, we may start seeing the clocks on other sats start failing in the enxt few years, assuming that the clock performance seems to degrade after three and a half years.

In that case, the entire system will need to be replaced- both IRNSS and Galileo.