- Joined
- Oct 3, 2009
- Messages
- 11,115
- Likes
- 14,530
ISRO General News and Updates
- Thread starter rahulrds1
- Start date
NeXoft007
Senior Member
- Joined
- May 10, 2017
- Messages
- 1,666
- Likes
- 13,464
Please say its false, we can't wait by 2021 to test a semicryogenic engine.
- Joined
- Apr 29, 2015
- Messages
- 18,282
- Likes
- 56,227
It's Kerosene based, there is a project for methane based engines for heavy interplanetary missions also.
Trinetra
Regular Member
- Joined
- Jan 30, 2017
- Messages
- 260
- Likes
- 552
so methane based test is on 2021 .. so when the Kerosene based will be test launched?
Unrelated, but a good read for dreamers like me..... 
Hottest to coldest: The seven most extreme planets ever discovered
Scientists recently discovered the hottest planet ever found – with a surface temperature greater than some stars. As the hunt for planets outside our own solar system continues, we have discovered many other worlds with extreme features. And the ongoing exploration of our own solar system has revealed some pretty weird contenders, too. Here are seven of the most extreme.
The hottest
How hot a planet gets depends primarily on how close it is to its host star – and on how hot that star burns. In our own solar system, Mercury is the closest planet to the sun at a mean distance of 57,910,000km. Temperatures on its dayside reach about 430°C, while the sun itself has a surface temperature of 5,500°C.
But stars more massive than the sun burn hotter. The star HD 195689 – also known as KELT-9 – is 2.5 times more massive than the sun and has a surface temperature of almost 10,000°C. Its planet, KELT-9b, is much closer to its host star than Mercury is to the sun.
Though we cannot measure the exact distance from afar, it circles its host star every 1.5 days (Mercury’s orbit takes 88 days). This results in a whopping 4300°C – which is hotter than many of the stars with a lower mass than our sun. The rocky planet Mercury would be a molten droplet of lava at this temperature. KELT-9b, however, is a Jupiter-type gas giant. It is shrivelling away as the molecules in its atmosphere are breaking down to their constituent atoms – and burning off.
The coldest
At a temperature of just 50 degrees above absolute zero – -223°C – OGLE-2005-BLG-390Lb snatches the title of the coldest planet. At about 5.5 times the Earth’s mass it is likely to be a rocky planet too. Though not too distant from its host star at an orbit that would put it somewhere between Mars and Jupiter in our solar system, its host star is a low mass, cool star known as a red dwarf.
Freezing but Earth-like: ESO OGLE BLG Lb. ESO, CC BY-SA
The planet is popularly referred to as Hoth in reference to an icy planet in the Star Wars franchise. Contrary to its fictional counterpart, however, it won’t be able to sustain much of an atmosphere (nor life, for that matter). This because most of its gases will be frozen solid – adding to the snow on the surface.
The biggest
If a planet can be as hot as a star, what then makes the difference between stars and planets? Stars are so much more massive than planets that they are ignited by fusion processes as a result of the huge gravitational forces in their cores. Common stars like our sun burn by fusing hydrogen into helium. But there is a form of star called a brown dwarf, which are big enough to start some fusion processes but not large enough to sustain them. Planet DENIS-P J082303.1-491201 b with the equally unpronounceable alias 2MASS J08230313-4912012 b has 28.5 times the mass of Jupiter – making it the most massive planet listed in NASA’s exoplanet archive. It is so massive that it is debated whether it still is a planet (it would be a Jupiter-class gas giant) or whether it should actually be classified as a brown dwarf star. Ironically, its host star is a confirmed brown dwarf itself.
The smallest
Just slightly larger than our moon and smaller than Mercury, Kepler-37b is the smallest exoplanet yet discovered. A rocky world, it is closer to its host star than Mercury is to the sun. That means the planet is too hot to support liquid water and hence life on its surface.
The oldest
PSR B1620-26 b, at 12.7 billion years, is the oldest known planet. A gas giant 2.5 times the mass of Jupiter it has been seemingly around forever. Our universe at 13.8 billion years is only a billion years older.
Artist’s impression of the biggest planet known. NASA and G. Bacon (STScI)
PSR B1620-26 b has two host stars rotating around each other – and it has outseen the lives of both. These are a neutron star and a white dwarf, which are what is left when a star has burned all its fuel and exploded in a supernova. However, as it formed so early in the universe’s history, it probably doesn’t have enough of the heavy elements such as carbon and oxygen (which formed later) needed for life to evolve.
The youngest
The planetary system V830 Tauri is only 2m years old. The host star has the same mass as our sun but twice the radius, which means it has not fully contracted into its final shape yet. The planet – a gas giant with three-quarters the mass of Jupiter – is likewise probably still growing. That means it is acquiring more mass by frequently colliding with other planetary bodies like asteroids in its path – making it an unsafe place to be.
The worst weather
Because exoplanets are too far away for us to be able to observe any weather patterns we have to turn our eyes back to our solar system. If you have seen the giant swirling hurricanes photographed by the Juno spacecraft flying over Jupiter’s poles, the largest planet in our solar system is certainly a good contender. However, the title goes to Venus. A planet the same size of Earth, it is shrouded in clouds of sulfuric acid.
The atmosphere moves around the planet much faster than the planet rotates, with winds reaching hurricane speeds of 360km/h. Double-eyed cyclones are sustained above each pole. Its atmosphere is almost 100 times denser than Earth’s and made up of over 95% carbon dioxide. The resulting greenhouse effect creates hellish temperatures of at least 462°C on the surface, which is actually hotter than Mercury. Though bone-dry and hostile to life, the heat may explain why Venus has fewer volcanoes than Earth.
http://www.business-standard.com/ar...e-planets-ever-discovered-117061200221_1.html
Hottest to coldest: The seven most extreme planets ever discovered
Scientists recently discovered the hottest planet ever found – with a surface temperature greater than some stars. As the hunt for planets outside our own solar system continues, we have discovered many other worlds with extreme features. And the ongoing exploration of our own solar system has revealed some pretty weird contenders, too. Here are seven of the most extreme.
The hottest
How hot a planet gets depends primarily on how close it is to its host star – and on how hot that star burns. In our own solar system, Mercury is the closest planet to the sun at a mean distance of 57,910,000km. Temperatures on its dayside reach about 430°C, while the sun itself has a surface temperature of 5,500°C.
But stars more massive than the sun burn hotter. The star HD 195689 – also known as KELT-9 – is 2.5 times more massive than the sun and has a surface temperature of almost 10,000°C. Its planet, KELT-9b, is much closer to its host star than Mercury is to the sun.
Though we cannot measure the exact distance from afar, it circles its host star every 1.5 days (Mercury’s orbit takes 88 days). This results in a whopping 4300°C – which is hotter than many of the stars with a lower mass than our sun. The rocky planet Mercury would be a molten droplet of lava at this temperature. KELT-9b, however, is a Jupiter-type gas giant. It is shrivelling away as the molecules in its atmosphere are breaking down to their constituent atoms – and burning off.
The coldest
At a temperature of just 50 degrees above absolute zero – -223°C – OGLE-2005-BLG-390Lb snatches the title of the coldest planet. At about 5.5 times the Earth’s mass it is likely to be a rocky planet too. Though not too distant from its host star at an orbit that would put it somewhere between Mars and Jupiter in our solar system, its host star is a low mass, cool star known as a red dwarf.
Freezing but Earth-like: ESO OGLE BLG Lb. ESO, CC BY-SA
The planet is popularly referred to as Hoth in reference to an icy planet in the Star Wars franchise. Contrary to its fictional counterpart, however, it won’t be able to sustain much of an atmosphere (nor life, for that matter). This because most of its gases will be frozen solid – adding to the snow on the surface.
The biggest
If a planet can be as hot as a star, what then makes the difference between stars and planets? Stars are so much more massive than planets that they are ignited by fusion processes as a result of the huge gravitational forces in their cores. Common stars like our sun burn by fusing hydrogen into helium. But there is a form of star called a brown dwarf, which are big enough to start some fusion processes but not large enough to sustain them. Planet DENIS-P J082303.1-491201 b with the equally unpronounceable alias 2MASS J08230313-4912012 b has 28.5 times the mass of Jupiter – making it the most massive planet listed in NASA’s exoplanet archive. It is so massive that it is debated whether it still is a planet (it would be a Jupiter-class gas giant) or whether it should actually be classified as a brown dwarf star. Ironically, its host star is a confirmed brown dwarf itself.
The smallest
Just slightly larger than our moon and smaller than Mercury, Kepler-37b is the smallest exoplanet yet discovered. A rocky world, it is closer to its host star than Mercury is to the sun. That means the planet is too hot to support liquid water and hence life on its surface.
The oldest
PSR B1620-26 b, at 12.7 billion years, is the oldest known planet. A gas giant 2.5 times the mass of Jupiter it has been seemingly around forever. Our universe at 13.8 billion years is only a billion years older.
Artist’s impression of the biggest planet known. NASA and G. Bacon (STScI)
PSR B1620-26 b has two host stars rotating around each other – and it has outseen the lives of both. These are a neutron star and a white dwarf, which are what is left when a star has burned all its fuel and exploded in a supernova. However, as it formed so early in the universe’s history, it probably doesn’t have enough of the heavy elements such as carbon and oxygen (which formed later) needed for life to evolve.
The youngest
The planetary system V830 Tauri is only 2m years old. The host star has the same mass as our sun but twice the radius, which means it has not fully contracted into its final shape yet. The planet – a gas giant with three-quarters the mass of Jupiter – is likewise probably still growing. That means it is acquiring more mass by frequently colliding with other planetary bodies like asteroids in its path – making it an unsafe place to be.
The worst weather
Because exoplanets are too far away for us to be able to observe any weather patterns we have to turn our eyes back to our solar system. If you have seen the giant swirling hurricanes photographed by the Juno spacecraft flying over Jupiter’s poles, the largest planet in our solar system is certainly a good contender. However, the title goes to Venus. A planet the same size of Earth, it is shrouded in clouds of sulfuric acid.
The atmosphere moves around the planet much faster than the planet rotates, with winds reaching hurricane speeds of 360km/h. Double-eyed cyclones are sustained above each pole. Its atmosphere is almost 100 times denser than Earth’s and made up of over 95% carbon dioxide. The resulting greenhouse effect creates hellish temperatures of at least 462°C on the surface, which is actually hotter than Mercury. Though bone-dry and hostile to life, the heat may explain why Venus has fewer volcanoes than Earth.
http://www.business-standard.com/ar...e-planets-ever-discovered-117061200221_1.html
Prashant12
Senior Member
- Joined
- Aug 9, 2014
- Messages
- 3,027
- Likes
- 15,002
India's eye in the sky to get sharper & wider
India's 'eye in the sky' is set to become sharper and wider with the launch of a third spacecraft in Cartosat-2 series -- a dedicated satellite for defence forces -- from the Sriharikota spaceport tomorrow.
The previous satellite in the series had a resolution of 0.8 metres and the images it took on India's neighbourhood had helped New Delhi carry out surgical strikes on seven terror launch pads across the Line of Control last year, ISRO sources said.
The latest remote sensing satellite slated to be launched on board PSLV-C38 tomorrow morning has a resolution of 0.6 metres, which means it can spot even smaller objects.
"It can recognise objects within that square (0.6 m by 0.6 m)", an ISRO official told PTI on condition of anonymity.
"Defence surveillance will get a leg-up. It can be used in identifying terrorist camps and bunkers... Some formations."
Once this satellite becomes operational, it would be "handed over" to the defence forces, which have their own "set up," including ground-stations and trained manpower to access data.
On the need to have a third satellite in the series, the official said, "The revisit time is the one which determines your data accessibility. More the number of satellites, the better and shorter revisit time you will have and more data you will get."
"They (Cartosat-2 series) are agile satellites - agile in the sense they can take pictures of the place that you want, you can choose and programme it," he said.
According to ISRO, the latest spacecraft is similar in configuration to earlier satellites in the series with the "objective of providing high-resolution scene specific spot imagery."
The 28-hour countdown for the launch of Cartosat-2 series satellite along with 30 co-passenger satellites from Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh began at 5.29 am today.
The Polar Satellite Launch Vehicle, in its 40th flight (PSLV-C38), would launch the 712 kg Cartosat-2 series satellite for earth observation and 30 co-passenger satellites together weighing about 243 kg at lift-off into a 505 km polar Sun Synchronous Orbit (SSO) at 09.20 hours tomorrow, the ISRO officials said.
http://www.business-standard.com/ar...-sky-to-get-sharper-wider-117062200914_1.html
India's 'eye in the sky' is set to become sharper and wider with the launch of a third spacecraft in Cartosat-2 series -- a dedicated satellite for defence forces -- from the Sriharikota spaceport tomorrow.
The previous satellite in the series had a resolution of 0.8 metres and the images it took on India's neighbourhood had helped New Delhi carry out surgical strikes on seven terror launch pads across the Line of Control last year, ISRO sources said.
The latest remote sensing satellite slated to be launched on board PSLV-C38 tomorrow morning has a resolution of 0.6 metres, which means it can spot even smaller objects.
"It can recognise objects within that square (0.6 m by 0.6 m)", an ISRO official told PTI on condition of anonymity.
"Defence surveillance will get a leg-up. It can be used in identifying terrorist camps and bunkers... Some formations."
Once this satellite becomes operational, it would be "handed over" to the defence forces, which have their own "set up," including ground-stations and trained manpower to access data.
On the need to have a third satellite in the series, the official said, "The revisit time is the one which determines your data accessibility. More the number of satellites, the better and shorter revisit time you will have and more data you will get."
"They (Cartosat-2 series) are agile satellites - agile in the sense they can take pictures of the place that you want, you can choose and programme it," he said.
According to ISRO, the latest spacecraft is similar in configuration to earlier satellites in the series with the "objective of providing high-resolution scene specific spot imagery."
The 28-hour countdown for the launch of Cartosat-2 series satellite along with 30 co-passenger satellites from Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh began at 5.29 am today.
The Polar Satellite Launch Vehicle, in its 40th flight (PSLV-C38), would launch the 712 kg Cartosat-2 series satellite for earth observation and 30 co-passenger satellites together weighing about 243 kg at lift-off into a 505 km polar Sun Synchronous Orbit (SSO) at 09.20 hours tomorrow, the ISRO officials said.
http://www.business-standard.com/ar...-sky-to-get-sharper-wider-117062200914_1.html
OnePunchMan
Regular Member
- Joined
- Nov 23, 2016
- Messages
- 500
- Likes
- 3,134
Chinmoy you clumsy bloke it's not performance normal but it's actually
" Parfaaaaaaarmace Naaarmal "
:biggrin2::bounce:
OnePunchMan
Regular Member
- Joined
- Nov 23, 2016
- Messages
- 500
- Likes
- 3,134
Indx TechStyle and GSLV mk3 will be so mad at you, don't do this again okay
:biggrin2::bounce:Indx TechStyle and GSLV mk3 will be so mad at you, don't do this again okay
- Joined
- Jun 5, 2017
- Messages
- 16,330
- Likes
- 70,174
Any video of Launch
Or kejriwal would say the launch was fake
Or kejriwal would say the launch was fake
It was telecast live on our very old DD National.
- Joined
- Jun 5, 2017
- Messages
- 16,330
- Likes
- 70,174
Ahh sorry DD national :bounce:
- Joined
- Oct 3, 2009
- Messages
- 11,115
- Likes
- 14,530
First day Images from Cartosat2 Series Satellite launched on June 23, 2017
First day Images from Cartosat -2 Series Satellite
First day Images from Cartosat -2 Series Satellite
