ISRO News and Updates

Karthi

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Today marks 12th Anniversary of Indian Flag landing on Moon

Saturday marks the 12th Anniversary of Indian Flag landing on Moon. Though people celebrate Diwali today, people after Sunset can locate three planets —Mars (in East) , Jupiter and Saturn (in South West Direction) as non-twinkling Star like objects. Plaetary Society of India Director N Sri Raghunandan Kumar in a release e-mailed to UNI said 14th November is the day when in year 2008 The Moon Impact Probe (MIP) a lunar probe developed by the Indian Space Research Organisation (ISRO) with Indian Flag etched onto it was released by ISRO’s Chandrayaan-1 mission on to the surface of moon.

The Moon Impact Probe separated from the moon-orbiting Chandrayaan-1 on 14 November 2008 at 20:06 and crash landed, as planned, into the lunar south pole after a controlled descent. He said Moon Impact Probe struck the Shackleton Crater of Southern pole of Moon at 20:31 on that day thus making India fifth nation to land its flag on Moon.
 

FalconZero

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Why can't they broadcast like this?
@Karthi @Haldilal @Indx TechStyle
This video's source is proly ISRO itself, their videos which are not from DD are of pretty decent quality comparatively speaking wrt to DD. ISRO does need a PR wing, a group which is dedicated specifically for information and broadcast-related to ISRO.
 

Chinmoy

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Personal rant:-
ISRO should not broadcast their rocket launch on DD national. If they can't atleast provide an alternative in form of live streaming of high quality on YouTube. Use a dedicated crew for broadcast and PR activities. Be active on social media platforms with blue ticks.
ISRO does webcasting of their launches and have a Youtube channel as well. I do watch the launch in webcast and youtube.
But overall its same to what you see on DD.
 

ezsasa

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To tell the truth, I've not understood this post. There are many videos regarding ISRO launch and some you tubers like Gareeb Scientist use their videos and presentations. Why can't they do that?
Issue is with monetisation. you can use ISRO official content/material as long as you don't make money out of it.
 

Akula

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To tell the truth, I've not understood this post. There are many videos regarding ISRO launch and some you tubers like Gareeb Scientist use their videos and presentations. Why can't they do that?
Gareeb scientist added animation in live streaming to use their videos. So, that his channel doesn't receive copyright strike. You can see his latest PSLV launch live streaming.
 

Karthi

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isro-venus-orbiter-cover-1.jpg



India’s Shukrayaan orbiter to study Venus for over four years, launches in 2024.
India’s space agency aims to launch its Venus orbiter Shukrayaan in late 2024, more than a year later than previously planned, an ISRO research scientist told a NASA-chartered planetary science planning committee Nov. 10.
T. Maria Antonita of the Indian Space Research Organisation (ISRO) detailed the status of the mission to scientists drafting a new 10-year plan for NASA’s planetary science program. Shukrayaan will be India’s first mission to Venus and will study the planet for more than four years.
ISRO was aiming for a mid-2023 launch when it released its call for instruments in 2018, but Antonita told members of the National Academies’ decadal survey planning committee last week that pandemic-related delays have pushed Shukrayaan’s target launch date to December 2024 with a mid-2026 backup date (optimal launch windows for reaching Venus occur roughly 19 months apart).
Antonita said Shukrayaan is currently slated to launch on India’s GSLV Mk II rocket. However, she said the team is also evaluating the possible use of the more powerful GSLV Mk III rocket, which would allow Shukrayaan to carry more instruments or fuel. A launch vehicle decision, she said, is expected by the time ISRO freezes the mission’s configuration and final set of instruments in the next three to six months.
In its current configuration, the orbiter weighs about 2,500 kilograms and will carry a science payload consisting of a synthetic aperture radar and other instruments.
Once launched, Shukrayaan is expected to take a few months to reach Venus, where it will enter a highly elliptical orbit of 500 by 60,000 kilometers around the planet. Over the following year, it will use aerobraking to lower its orbit to 200 by 600 kilometers. This polar orbit will be the final one used for scientific observations.
The mission’s primary science objectives are to map Venus’ surface and subsurface while studying the planet’s atmospheric chemistry and interaction with the solar wind.
Shukrayaan’s flagship instrument is an improved version of the dual frequency synthetic aperture radar (SAR) India’s Space Applications Centre built for the Chandrayaan-2 spacecraft currently orbiting the Moon. Antonita said Shukrayaaan’s SAR payload will have up to four times the resolution of NASA’s Magellan orbiter, a Venus mapper launched in 1989. Notably, Shukrayaan will also carry a ground penetrating radar, making it the first to map Venus’ subsurface. These observations would help scientists better understand Venus’ geology and evolution.
Roughly 100 kilograms of Shukrayaan’s 2.5-ton mass is set aside for scientific instruments, according to the call for instrument proposals ISRO issued two years ago soliciting payloads from India and abroad. The open call for instruments marks a return to the approach ISRO took with Chandrayaan-1, the lunar orbiter it launched in 2008 carrying six instruments from countries other than India. The 2013 Mangalyaan Mars orbiter and 2019’s Chandrayaan-2 lunar orbiter and lander, in contrast, carry only Indian instruments.
Of the proposals, 20 candidate instruments have been shortlisted but the session didn’t mention which ones. Antonita did say that Russia, France, Sweden and Germany will have instruments onboard. The French space agency CNES announced in September that the Venus Infrared Atmospheric Gases Linker, or VIRAL, instrument it codeveloped with Russia’s space agency will fly on Shukrayaan.
In addition to its flagship radar, Shukrayaan will also carry an instrument suite capable of spectroscopic observations in infrared, ultraviolet and submillimeter wavelengths to study Venus’ atmosphere, according to Antonita’s slides. The possible detection of phosphine in Venus’ upper atmosphere excited many people about the prospects of life there, although some scientists are still skeptical. According to Antonita, the presence of phosphine and other biomarkers in Venus’ upper atmosphere could be confirmed using the orbiter’s Near Infrared Spectrometer. The instrument will also be used to detect and locate any active volcanism on Venus
Only three spacecraft have orbited Venus in the past 30 years, but space agencies around the world are showing renewed interest in the second planet from the sun. NASA selected two Venus missions earlier this year for further consideration for launch opportunities in 2025 and 2028. The European Space Agency is considering a Venus orbiter mission called EnVision that would launch by the 2030s. And Russia is working on a Venus orbiter and lander mission concept called Venera-D that would launch no earlier than 2023.
 

Karthi

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FPGA Based ZVT Phase Shifted Full-bridge EPC.jpg


Full bridge EPC for GaN SSPAs developed by ISRO.
Test setup of the system .jpg


Test setup of the above mentioned system

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50W EPC Flight Model (FM) Unit  .jpg


50 w EPC Flight model for Space applications

Flight Model 15W C-Band SSPA Unit .jpg



Flight Model 15W C-Band SSPA Unit

FM unit of 300W EPC for 100W UHF SSPA .jpg



Flight Model of 300 W EPC for 100W UHF SSPA.

Integrated 100W UHF SSPA (QM) Test set up .jpg


Integrated 100W UHF SSPA (QM) Test set up


Qualification Model 6KV HV-EPC for 140W Ku TWT .jpg

6KV HV-EPC for 140W Ku TWT


transparent silica aerogel.jpg


Transparent silica aerogel for space applications.

E-Glass Fiber .jpg


E Glass Fiber.

Silicone+E-Glass Fiber.jpg


Silicone + E Glass Fiber.

the last two pics are active bimorph structures .
 

Karthi

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Nisar.jpg


NISAR Electronics.

Nisar2.png


NISAR

Prototype L-Band Feed Tile without Radome.jpg


Prototype of L BAND Feed tile without Radom for NISAR

Prototype Tile.jpg


prototype tile at test facility (NASA)

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BC-2.2 ASIC.jpg


Onboard computer 2.2 ASIC for SAR Payloads on various ISRO Missions
OBC-2.2 ASIC test setup .jpg


OBC 2.2 Test setup.

RISAT-1A TRC DVM Photograph  .jpg


RISAT 1 A TRC DVM
 

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