indiatester
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Vyomagami would have been better IMHO. Not sure why they have to add nuts.IAF pilots will probably be the first 'Vyomnauts'.
Vyomagami would have been better IMHO. Not sure why they have to add nuts.IAF pilots will probably be the first 'Vyomnauts'.
The reason to make SSLV i to fasten the process of launching. The liquid engine requires lot of time to set up, refuel, recheck and then fire. Solid fuel rockets can be fired like a missile using a erector launcher. The parts need to be tested only once and then the rocket is fit to fire.As I am getting it, SSLV is not having any liquid stage, any particular reason ?
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Satellite will help propel PM’s Digital India programme; it will work to provide Internet access to villagers across the country.
The Indian Space Research Organisation (ISRO) which has embarked on an ambitious plan to have a rocket launch every second week from now on will launch the GSAT-29 next month.
The launch of the GSAT-29 satellite will propel Prime Minister Narendra Modi’s Digital India programme. One of the targets of the mission is to ensure that Village Resource Centres (VRC) in rural areas can successfully bridge the digital divide.
According to the space agency GSAT-29 is configured around ISRO’s Enhanced I-3K Bus and will be the payload for second developmental flight of GSLV MK3. It carries Ka x Ku multi-beam and optical communication payloads for the first time.
The GSAT-29 which is classified as a high throughput satellite will be launched on board the GSLV MK3-D2. The October launch of the GSLV MK3 is the second one involving ISRO’s heaviest launch vehicle.
Last year, the first developmental flight of GSLV MK3 was carried out when the GSLV MK3-D1 successfully launched the GSAT-19 satellite.
Apart from the buzz surrounding the GSAT-29’s launch as it is part of the Digital India mission, the October launch would also be watched closely as the GSLV MK3 is the rocket which has been earmarked for the Human Space Mission or the Gaganyaan.
Gaganyaan aims to send a three-member crew to space for a period of five to seven days by 2022. The spacecraft will be placed in a low earth orbit of 300-400 km.
ISRO has lined up a series missions involving the GSLV MK3 before the Gaganyaan mission becomes a reality as the launcher has to be Human rated for the mission.
After the GSAT-29, another launch is planned involving a PSLV during which 30 commercial satellites would be launched.
ISRO has said that it will have a very busy second half for 2018 starting with the successful launch of two foreign satellites on September 16.
Moon occupies a special place for humans. As the closest celestial object to Earth and with the recent advances made in lunar exploration, Moon will continue to be an important object of study. The early Moon landings during the Apollo era were followed by a lull in lunar studies until the early 1990s with the launch of Clementine (USAF/NASA) followed by Lunar Prospector (NASA), SMART-1 (ESA), Kaguya (Japan),Chang’e missions (China), Chandrayaan-1 (India), Lunar Reconnaissance Orbiter (NASA), etc.
A decade ago, ISRO launched our first mission to the Moon, Chandrayaan-1. It was a unique mission in many respects with the key focus to search for evidence for water on Moon, to understand the origin of the moon from mineral and chemical composition studies, map the lunar surface in greater detail and to detect and identify the presence of atomic species in the thin atmosphere of the Moon.
Chandrayaan-1 was unique in inviting international partners for joining our lunar science investigation through contributed complementary instruments or jointly developed experiments. The mission carried instruments from USA, Europe and Bulgaria. These were optimally chosen to expand the scope and capability of Chandrayaan-1 science goals which included the search for water on Moon.
Chandrayaan-1 data showed evidence for water in the exosphere of Moon, on the surface of Moon and also sub-surface (tens of meters deep). In the thin atmosphere of Moon, the mass spectrometer experiment (CHACE on Moon Impact Probe) showed evidence for water even within its limited operational time, as the Moon Impact Probe was deployed on its destructive, ballistic trajectory to the south polar region. The Polar region of the moon is believed to host volatiles like water. Water is expected from primordial origin (~3-4 billion years ago) which remained preserved due to the unique geometry of solar illumination which prevents direct sunlight from entering craters in polar regions. Water and other volatiles are also expected to be enhanced at the polar region from migration from lower latitudes.
Evidence for surface water came from the Moon Mineralogy Mapper (M3) experiment on Chandrayaan-1. Initially it showed the presence of water on the sunlit side using water/ice spectral signature (2- 2.5 microns) in the reflected sunlight. Very recently on Aug 21st, it was reported in the Proceedings of the National Academy of Sciences (USA) that M3 also discovered evidence for water at the lunar poles where the signature arose from nearly dark regions but faint spectral features in the reflection of sunlight that entered craters nor directly but from multiple reflections from crater walls. The constraint from limited wavelength coverage of M3, remained a worry. In parallel, the team pursued laboratory experiments which showed complementary evidence of signal absorption by water, in the part of the spectrum formally covered by M3 spectrometer (0.7 to 3.0 microns). The key evidence derived from laboratory studies was to search for simultaneous occurrence of absorption features at 1.3, 1.5 and 2 microns which provided clear evidence for water-ice. The localisation of this new signature coincided with permanently shadowed craters on the north and south poles of the Moon. Since M3 infra-red reflectance spectroscopic signal arises from only the top few mm of the lunar surface, this was evidence for surface water in polar craters. This further strengthened earlier evidences from the laser altimeter and the UV spectrometer experiments on Lunar Reconnaissance Orbiter (LRO).
Evidence for subsurface water (tens of meters deep) emerged from the Synthetic Aperture Radars deployed on Lunar mission including those on Chandrayaan-1 and LRO. The mapping was most intense at the poles, yielding evidence for subsurface water-ice.
To add strength to the overall story of water on the Moon, in mid-2017, a core group from the same team that reported the recent M3 findings, had studied volcanic rocks from Apollo 15 and 17 using very sensitive instruments and reported the larger than anticipated abundance of water in these rocks which emerged from the lunar interior. Numerous years of pursuing laser ranging of the Moon using earth-based powerful lasers which were reflected off the retroreflectors left on the Moon by Apollo (11, 14, 15) astronauts and the Lunokhod (1 and 2) landers, showed evidence for a liquid core.
The comprehensive evidence for lunar water coming from surface, sub-surface, deep interior and the exosphere is most exciting as one looks at future space exploration and travel. The ready access to water at the poles has both scientific and utilitarian interest. A sample of primordial water would be key towards addressing the origin of water on Moon as well as earth and may have more to say on the story of water in the solar system. As we begin a wider exploration of space and the solar system, Moon could form the base for fuel and oxygen and other critical raw materials. If Moon can be considered a pit-stop for resources including water, space transportation could be more affordable as some studies have shown.Chandrayaan-2 begins its lunar studies in early 2019 with an orbiter that carries a wider range spectrometer that goes upto 5 microns to clearly provide the water signature. The global map from this experiment is expected to yield the firmest conclusions on the distribution of water on the Moon’s surface. The dual frequency SAR experiment on Chandrayaan-2 will further refine sensitivity to sub-surface water. Along with a mass spectrometer that can study the exosphere for much longer durations, Chandrayaan-2 truly has a unique opportunity to provide major findings on the important subject of water on the Moon.
With the launch of three GSAT sattelites, India will enjoy more than 100 Gbps high internet bandwidth before the end of the next year, said ISRO Chairman K Sivan, reported The Times Of India.
Speaking at a convocation in Hyderabad, K Sivan said:
“India has the world’s second largest internet user base. But our present broadband speed is 76th in the world. ISRO has already launched GSAT-19 in June 2017. This year ISRO will launch GSAT-11 and GST-29, and early next year, GSAT-20 will be launched. All these are high throughput satellites and together they will provide 100 gbps high bandwidth connectivity across the country which will help bridge the digital divide.”
The Chairman also said that the Government Of India has approved a budget of 10,900 crore rupees for 30 PSLVs and 10 GSLV Mk-3s which will be launched in the next four years in addition to 50 more spacecrafts.
(With inputs from The Times of India)He added that with ISRO investing more in space research, the organisation was looking forward to collaborate more with academics and industries.
Mars Orbiter Mission (MOM), the truly maiden interplanetary mission of ISRO, launched on November 5, 2013 successfully got inserted into Martian orbit on September 24, 2014 in its first attempt. MOM completes 4 years in its orbit on September 24, 2018 though the designed mission life of MOM was six months. MOM is credited with many laurels like cost-effectiveness, short period of realization, economical weight-budget, miniaturization of five heterogeneous science payloads etc. Satellite is in good health and continues to work as expected.
MOM is built with full autonomy to take care of itself for long periods without any ground intervention. The spacecraft came out of communication ‘blackout’ and ‘whiteout’ geometry successfully during this period.
ISRO made an Announcement of Opportunity (AO) through its website seeking for proposals to expand the scientific community within the country that can access and analyse MOM data. A planetary data analysis workshop was conducted to enhance exposure and reach of MOM-AO scientists.
Initial two years data of MOM were released to public through ISSDC website https://mrbrowse.issdc.gov.in/MOMLTA/. Third year data are ready to be released to public. More than 2100 users have registered and downloaded more than 620 GB data so far.
Phobos and Deimos, the two moons of Mars were also imaged from close distances by Mars Colour Camera (MCC) camera and MOM is the only Martian artificial satellite which could image the full disc of Mars in one view frame and also image the far side of Deimos.
Mars Colour Camera has acquired 980+ images so far. Mars Atlas has already been prepared. MOM has produced twenty three publications in peer reviewed journals. List of publications can be accessed from https://www.isro.gov.in/sites/default/files/mom-list-of-publications-sept2018.pdf.
BENGALURU: HHV, a vacuum science and technology company based in the city will now produce the entire Thin Film Metallized Circuit for Indian Space Research Organisation (ISRO’s ) Satellite program.In 2017, HHV was awarded a ‘Certification of Qualification’ by the Space Application Center, ISRO for Thin Film Metalized substrates.
Prasanth Sakhamuri, Managing Director, HHV said, “As a part of ISRO’s technology transfer program and as a forward integration of this award winning technology, HHV will now produce the entire Thin Film Metallized Circuit for ISRO’s 40-micron accuracy line, in its new technology production line known as ‘Photo Lithography.”
He further added that HHV has established a new Photo Lithography Lab at its Dabaspet plant to develop TFMCs on alumina substrates that first need to be metallized in a vacuum chamber.
Sakhamuri said, “The entire process requires high levels of precision and sophisticated technology to deposit coatings pattern the circuits and check the quality of the substrates within a 1,000th of a millimetre. HHV’s Photo Lithography Lab has ISO 7 and ISO 8 clean rooms as well as class 100 laminar flow stations that allow us to achieve resolutions of up to 40 microns.”
A section of the space establishment is suggesting that there is more to the postponement than an overcautious response prompted by the loss of GSAT6A. This section alleges that a foreign satellite service provider stands to extend its first-mover advantage and expand its commercial footprint in India because of the delay in launching GSAT11.
A senior space agency official said the recall and delay in the launch of GSAT11 would compel the state-run Bharat Sanchar Nigam Limited (BSNL) to consolidate its reliance on the foreign platform called Jupiter, made by the US-based Hughes Network Systems, to expand its broadband services across rural and urban areas.
A senior telecom industry executive told The Telegraph that BSNL had begun to offer its Jupiter-based services in 2017 and at least two public sector banks are already relying on it for rural connectivity.
Hughes had said Jupiter-powered services would be five times faster than any satellite Internet access available in India, offering speeds up to 100 Mbps.
Had ISRO launched GSAT11 on schedule and followed it up with GSAT20 in early 2019, Isro could have competed to provide BSNL similar services, a government official said.
At least four engineers had recommended without reservations that GSAT11 could go ahead for further operations, meaning it was ready for launch.
The fourth engineer had explicitly cautioned that “there is a certain risk associated with bringing back GSAT-11 and the original quality can suffer. It is better to proceed with further operations as the configuration is robust enough”.
only one director said “it is desirable to bring back GSAT11”
However, Isro told this newspaper in response to a questionnaire that the decision to bring back GSAT11 was based on a technical review by a former chairman and space commission members and driven by concerns that two satellites, RISAT1 and GSAT6A, had faced “premature end-of-life”.
Isro described its decision to bring back GSAT11 as “wise”.
“The recall of GSAT11 has thus proved to be a wise decision,” the space agency said.
But at the April meetings, Isro engineers had pointed out that GSAT11 was designed differently and appeared protected through special mechanisms and redundancies against a GSAT6A-like failure.
Thanks. I had no idea about this newspaper. News just appeared while I was browsing. I was losing my crap about this.
What more could you expect from a MOMOTA BAANU mouthpiece. Some horse shit conspiracy theory only. You should read up Telegraph daily to believe on their contents.
Yep.......... I was a subscriber of Telegraph n every morning used to lose my cool on its article since 2014 after BJP won. The only thing good about it is its supplementary reader T2, which is full of bollywood and hollywood eye candy. :biggrin2:.Thanks. I had no idea about this newspaper. News just appeared while I was browsing. I was losing my crap about this.
BTW, MOMOTA BAANU = "Didi"?