Indian Space Program: News & Discussion

The Technology & Economic Forum is a venue to discuss issues pertaining to Technological and Economic developments in India. We request members to kindly stay within the mandate of this forum and keep their exchanges of views, on a civilised level, however vehemently any disagreement may be felt. All feedback regarding forum usage may be sent to the moderators using the Feedback Form or by clicking the Report Post Icon in any objectionable post for proper action. Please note that the views expressed by the Members and Moderators on these discussion boards are that of the individuals only and do not reflect the official policy or view of the Bharat-Rakshak.com Website. Copyright Violation is strictly prohibited and may result in revocation of your posting rights - please read the FAQ for full details. Users must also abide by the Forum Guidelines at all times.
bala
BRF Oldie
Posts: 2433
Joined: 02 Sep 1999 11:31
Location: Office Lounge

Re: Indian Space Program: News & Discussion

Post by bala »

The launch of SSLV-D3 developmental flight

SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

SSLV Successfully launched & payloads placed in precise orbits.
This culminates the development stage and moves into operational stage with private industries that can fabricate & launch in the future.
Congrats, ISRO
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

I don't know how the hell ISRO Chairman is appearing on this guy's show. I guess it must be purely due to his audience reach.

SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

Happy Space Day.
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Can somebody explain to me why these people have done this on Space Day?

They're claiming to have launched "suborbital satellites" on their new "hybrid rocket" (no explanation provided on what that is)

sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

disha
BR Mainsite Crew
Posts: 8405
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Indian Space Program: News & Discussion

Post by disha »

sanman wrote: 24 Aug 2024 19:24 Can somebody explain to me why these people have done this on Space Day?

They're claiming to have launched "suborbital satellites" on their new "hybrid rocket" (no explanation provided on what that is)
Nonsense and garbage. Lot of PR nonsense and their launch was just garbage. Those are model rockets with fuel canisters that can be replugged and flown again. Search for High Power Rocketry and L3 (or Level 3) certifications and you will get several hits on you tube. I myself (on my own) was aiming for L1 to L3 certification. Now that hobby has been put on back burner until I retire from the rat race.
SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

India to launch Gaganyaan crew capsule test flight by end of 2024 - Space.com
"Today, we are working on the first mission of the Gaganyaan, called G1. The first unmanned mission. The status today is the rocket, the S200 stage, the L1, [and] C32 stage are all at Satish Dhawan Space Centre," Somanath said, as reported by the Economic Times.

That rocket is the Launch Vehicle Mark-3, or LVM3 for short. Meanwhile, the crew module and service module for the uncrewed flight are undergoing integration at Vikram Sarabhai Space Centre and U R Rao Satellite Centre, respectively.

"All systems will reach Sriharikota in one and a half months, and the launch will be in December," Somanath said, according to the Times of India.
SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

India and Brunei have signed an agreement to establish an ISRO Telemetry, Tracking & Command (TTC) centre in Brunei.
Ashokk
BRFite
Posts: 1152
Joined: 11 Aug 2016 06:14

Re: Indian Space Program: News & Discussion

Post by Ashokk »

GNSS-Reflectometry: A Novel Remote Sensing Initiated by EOS-08
The GNSS-Reflectometry (GNSS-R) instrument on the EOS-08 satellite commenced operations on August 18, 2024. The raw data is being processed at the National Remote Sensing Centre (NRSC-ISRO) in Shadnagar, Hyderabad, using algorithms and data processing software developed by the Space Applications Centre (SAC-ISRO), Ahmedabad. Multiple levels of data products have been successfully generated.

GNSS-Reflectometry represents a new mode of remote sensing. Signals from Global and Regional Navigation Satellite Systems (GNSS/RNSS), such as GPS and NavIC, are reflected off various Earth surfaces, including oceans, agricultural lands, and river bodies. These reflected signals are collected by a precision receiver onboard the satellite (Fig. 1) as it orbits the Earth at an altitude of 475 km. This measurement system operates without dedicated transmitters and is shallow in resource consumption—requiring minimal size, weight, and power. Additionally, it can scale up as a constellation of receivers for faster coverage, making this innovative remote-sensing mode highly useful.
The GNSS-R instrument, developed by the Space Applications Centre (SAC-ISRO), is India’s first space-borne precision receiver. It collects ground-reflected GNSS signals and measures their power and other signal characteristics. These measurements are used to derive scientific information about the regions covered by the receiver, including soil moisture, surface inundation, and ocean surface wind and wave measurements. The instrument provides a resolution of 15 km x 15 km over oceans and better than 1 km x 1 km over land. Delay-Doppler Maps (DDMs) are the primary outputs from GNSS-R raw data processing (Fig 2). These DDMs are used to derive parameters such as reflectivity and Normalized Bistatic Radar Cross-Section (NBRCS), which are then used for the retrieval of various scientific parameters.

All the science products are generated at SAC-ISRO using in-house developed algorithms. The first land data was collected over the Sahara Desert (North Africa) using a high-resolution mode of 1 km, which is significantly better than that of contemporary CYGNSS sensors. This data was processed to retrieve soil moisture (Fig. 3) at high resolution, and the results were found to be within the expected range. Another high-resolution land dataset was acquired over the Amazon Rainforest on August 21. This data has been used to generate surface inundation masks along the specular reflection track, showing sensitivity even towards sub-kilometer river widths (Fig. 3). The first ocean data was collected on August 19, over a region of the Pacific Ocean. This data was processed for the retrieval of wind speed and significant wave height (Fig. 4), with all obtained values falling within the expected ranges.
SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

Nuclear power plant on moon? India may join China, Russia in this mission - ToI
Call it lunar diplomacy or what you may. Two arch rivals, India and China, are likely to team up with Russia for setting up a nuclear power plant on the moon, according to a recent report in EurAsian Times referring to Russia’s state-owned news agency Tass, saying this was highlighted by Rosatom chief, Alexey Likhachev.

Rosatom is Russia’s state nuclear energy corporation having ties with India

Speaking at the Eastern Economic Forum recently at Vladivostok in Russia, Likhachev said: “… with the involvement of the international community, our Chinese and Indian partners are very interested in this,’’ he said.

India’s interest in the project assumes significance in the context of the country planning a manned mission to the moon by 2040 and setting up a base.

According to Tass, the lunar power project, led by Rosatom, aims to build a small nuclear power plant capable of generating up to half a megawatt of energy, providing the necessary power for the base.

Likhachev reiterated that China and India are eager to be involved in creating this ground-breaking lunar energy solution.

Russia’s space agency, Roscosmos, had previously declared in May that work on this nuclear power plant was underway, intending to deploy it to the moon.

The reactor will provide energy for a proposed lunar base, which Russia and China are jointly working on. India’s desire for a lunar base coincides with its possible participation in the lunar power project.

The construction of this lunar nuclear power plant will be complex. Russia previously revealed that it would likely be carried out autonomously without the direct involvement of humans.

In 2021, Russia and China announced plans to build a joint lunar base called the International Lunar Research Station (ILRS) which could be commissioned in phases between 2035 and 2045.

Experts said India is playing its diplomatic cards carefully with the US and Russia. While it is sending Shubhanshu Shukla of the Gaganyaan mission to the International Space Station in the US, it is now exploring the possibility of joining hands with China on the Russian lunar power project.
Rakesh
Forum Moderator
Posts: 19650
Joined: 15 Jan 2004 12:31
Location: Planet Earth
Contact:

Re: Indian Space Program: News & Discussion

Post by Rakesh »

https://x.com/SJha1618/status/1833797492971831620 ---> So, @Space_Fields Pvt Ltd says that it has just hot-tested India's first Aerospike Rocket Engine. It's funny how these things happen. Just last night I was thinking about whether aerospike engines can really make SSTO a reality having read up on the German MIRA effort.

India's First AeroSpike Rocket Engine | Hot-Firing | SpaceFields

sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

China's first vertical landing rocket test:

SSridhar
Forum Moderator
Posts: 25196
Joined: 05 May 2001 11:31
Location: Chennai

Re: Indian Space Program: News & Discussion

Post by SSridhar »

Mercantilism in outer space: discussing a political-economic approach for the Global South - Aritra Ghosh, The Space Review
This essay focusses on the political-economic impact of the utilization of outer space on economically capable Global South states. A frontier that was predominantly accessed by the Global North has since seen the rise of developing countries, such as India, who are taking an active interest in the economic and security concerns on the use of space as they themselves have become spacefaring nations. States, specifically actors from the global south, benefit from taking a mercantilist approach to outer space. While there does exist regulation of activities in space, such as the Outer Space Treaty (OST) of 1967, it can be considered outdated for the advancements made in the economic and military potential of outer space in 21st century and it should be noted that the bodies that govern peaceful cooperation of outer space are part of the United Nations and hence this means that the ultimate decision-making body on matters regarding space are the five permanent members of the UN Security Council who hold veto power. All five are spacefaring nations, and four out of the five (excluding China) are a part of the Global North.

Therefore, this essay claims that countries of the Global South such as India and others that have an active interest in utilizing outer space for economic interests must follow a mercantilist approach or they will not be able to succeed in a frontier that is slowly being hegemonized by the Global North. What exactly is a mercantilist approach? Mercantilists take the approach “that economic activity is and should be subordinated to the primary goal of building a strong state. In other words, economics is a tool of politics, a basis for political power. That is a defining feature of mercantilist thinking. Mercantilists see the international economy as an arena of conflict between opposing national interests, rather than an area of cooperation and mutual gain.” (Jackson and Sørensen, 2015, pg. 4)

The utilization of outer space has become essential for the functioning of the global economy on Earth. An example of this is satellites providing GPS and connectivity that have become crucial for telecommunications, e-commerce, trade, and hence the international economic order (IMF, 2021). There are also military usages of satellites in space for the purpose of communication, navigation, and intelligence gathering. (Space.Com, 2014) Recently, private companies have pushed for a move towards greater privatization in space, like SpaceX’s Starlink or Virgin Galactic’s suborbital space tourism services. These companies have also been closely working with government institutions such as SpaceX’s collaboration with NASA (Costa, 2022). For these private companies, having access to outer space earlier than others helps in creating a potential monopoly over private business in space for themselves (Foust, 2023).

As technology has developed, mining in space of asteroids and the moon has become a real possibility. Asteroid or lunar mining can potentially solve resource scarcity issues on Earth as well as be a highly lucrative endeavour for states and private businesses involved: “Despite the high price tag, the development of asteroid mining technology may very well be a worthwhile endeavor due to the extremely valuable resources that asteroids have to offer. For example, Asterank, which measures the potential value of over 6,000 asteroids that NASA currently tracks, has determined that mining just the top 10 most cost-effective asteroids–that is, those that are both closest to Earth and greatest in value–would produce a profit of around US$1.5 trillion.” (Yarlagadda, 2022)

However, the Outer Space Treaty is largely ambiguous on the matter and states have proceeded to make their own legislation regarding mining in space, an example of this bring the US Commercial Space Launch Competitiveness Act of 2015 (Oduntan, 2015). The Artemis Accords (2020), drafted by the US, are a series of non-binding bilateral agreements between the US and other countries for a “common set of principles to govern the civil exploration and use of outer space”(NASA, n.d.). The Artemis Accords reinforces principles of cooperation in space while including issues of concern in the 21st century such as the “extraction and utilization of space resources, including any recovery from the surface or subsurface of the Moon, Mars, comets, or asteroids” (Artemis Accords, pg. 4). Emphasis should be given to the fact that the Artemis Accords are a non-binding agreement and hence there are no legal consequences to breaking the principles of the accord, especially to the USA. Even if the UN decides to impose sanctions on those that have breached the Artemis Accords, if the US themselves are a breacher they would simply veto any decision against them. Therefore, the international political system is grossly tilted in favour of the five permanent members of the United Nations Security Council, benefitting them greatly in the utilization—and potential exploitation—of resources in outer space without significant consequences.

So why must economically capable Global South countries take a mercantilist approach to outer space? The answer is to prevent further domination over them by the Global North. There are various resources in space that are scarce on Earth, and accessing resources in space such as helium-3 would transform the nuclear energy sector on the planet. (Kilment, 2006) Any state that manages to successfully extract these resources first would immediately gain the upper hand in international trade of the said resource as well as using the new resources to further push economic development and production. Strengthening of a state’s economy would lead the periphery/semi-periphery states to be less reliable on the exploitative “core” countries of the world system. (Hopkins and Wallerstein, 1982) and allow them to have a greater say in economics and geopolitics

Another feature of mercantilism of space would be the militarization or weaponization of this frontier. Hence, from an offensive realist lens, this essay argues that states from the Global South, such as India, that have the economic capability to weaponize/militarize space should do so, and it is only after building such weapons the state should show restraint. The purpose of such weapons should not be aggressive in nature, but rather to protect their own economic interest in space while also ensuring they do not fall back to the Global North in military capability. While states should invest in protective measures in space by the production of weapons that can be used in outer space, all states should avoid military conflict in space. Such a conflict could spill over to the terrestrial plane leading to large-scale destruction and the use of weapons of mass destruction. The aim of the Global South should be to strengthen their economic and political position to such an extent that they do not let outer space be another frontier where the current terrestrial status-quo applies, but rather use the resources present in outer space and utilize them to strengthen their terrestrial political power.

In conclusion it should be noted that this essay does not advocate aggressive mercantilism in outer space, but rather defensive mercantilism, one where “states look after their national economic interests because that is an important ingredient of their national security; such policies need not have overly negative effects on other states.” (Jackson and Sørensen, 2015, pg. 4) It also does not dispute key principles of the OST, (United Nations Office for Outer Space Affairs, 1966) but rather encourages it; fair and peaceful cooperation in outer space has the potential to bring about profound net-positive economic change here on Earth. However, this essay recognizes the existing deficiencies in international space law and the repeated lack of accountability by the P5 who use the United Nations as a tool to their means of power politics (Glennon, 2003, pg. 18) rather than benefitting the international community as a whole. The reasonable solution to this is either major reforms in the UN Security Council or creating a new international governing body specifically related to activities in outer space that is more neutral in nature than the current United Nations. Pessimistic about the former, the latter scenario is more likely as the politics and economics of outer space further complexes. When such a scenario does arise, the Global South should be in a position to play a more active role in the making of such an institution and the creation of stronger space legislation. Thus, economically capable Global South states with an interest in outer space must pursue a defensive mercantilist policy and use outer space to the best of their abilities to strengthen their position economically and militarily on Earth so they too can have an equal presence in global power politics, refusing to be subordinates to the Global North’s interests.
Amber G.
BRF Oldie
Posts: 10032
Joined: 17 Dec 2002 12:31
Location: Ohio, USA

Re: Indian Space Program: News & Discussion

Post by Amber G. »

Indian Cabinet has cleared the Venus Orbiter Mission. This will ensure more in-depth research to understand the planet!
https://pib.gov.in/PressReleasePage.aspx?PRID=2055982
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Amber G. wrote: 19 Sep 2024 01:18 Indian Cabinet has cleared the Venus Orbiter Mission. This will ensure more in-depth research to understand the planet!
https://pib.gov.in/PressReleasePage.aspx?PRID=2055982
Will there be any aerocapture on this mission? Or just regular thrust-braking?

To paraphrase Abdul Kalam - if they're going all that way, why not even drop something down there?
Amber G.
BRF Oldie
Posts: 10032
Joined: 17 Dec 2002 12:31
Location: Ohio, USA

Re: Indian Space Program: News & Discussion

Post by Amber G. »

Amber G. wrote: 19 Sep 2024 01:18 Indian Cabinet has cleared the Venus Orbiter Mission. This will ensure more in-depth research to understand the planet!
https://pib.gov.in/PressReleasePage.aspx?PRID=2055982
FYI: This in addition to India approves moon sample return, ..space station module and reusable launcher.
Amber G.
BRF Oldie
Posts: 10032
Joined: 17 Dec 2002 12:31
Location: Ohio, USA

Re: Indian Space Program: News & Discussion

Post by Amber G. »

sanman wrote: 19 Sep 2024 02:00
Amber G. wrote: 19 Sep 2024 01:18 Indian Cabinet has cleared the Venus Orbiter Mission. This will ensure more in-depth research to understand the planet!
https://pib.gov.in/PressReleasePage.aspx?PRID=2055982
Will there be any aerocapture on this mission? Or just regular thrust-braking?

To paraphrase Abdul Kalam - if they're going all that way, why not even drop something down there?
Wait and see the details --" VOM (Venus Orbiter Mission) is for scientific exploration & for better understanding of Venusian atmosphere, geology & generating large amount of science data by probing into its thick atmosphere."

(What is in public domain - AFAIK -doesn't specifically mention aerocapture or thrust-braking for the Venus Orbiter Mission (VOM). However, for example, Next Generation Launch Vehicle (NGLV) will feature reusable components and modular propulsion systems, which could potentially be used for future missions)..
In short what i would say at present (as a scientist speaking in general terms):

Short term:
VOM) , set to launch in March 2028, aims to study Venus' atmosphere, geology, and evolution. With a budget of $149 million, VOM will explore potential biomarkers like phosphine, providing insights into planetary environments.

Long Term:
India's ambitious space program is expanding with the approved VOM objectives also include investigating along with Venus' atmosphere its geology, and evolutionary history, shedding light on how planetary environments diverge from Earth's..
bala
BRF Oldie
Posts: 2433
Joined: 02 Sep 1999 11:31
Location: Office Lounge

Re: Indian Space Program: News & Discussion

Post by bala »

Looks like Chandrayaan-4 has been cleared.

https://twitter.com/user/status/1836386507571011615

It would make everyone proud that Chandrayaan-4 has been cleared by the Cabinet! This would have multiple benefits, including making India even more self-reliant in space technologies, boosting innovation and supporting academia.

https://pib.gov.in/PressReleasePage.aspx?PRID=2055983

The total fund requirement for the technology demonstration mission “Chandrayaan-4” is Rs. 2104.06 Crore. Chandrayaan-4 to develop and demonstrate the technologies to come back to Earth after successfully landing on the Moon and also collect moon samples and analyse them on Earth.
bala
BRF Oldie
Posts: 2433
Joined: 02 Sep 1999 11:31
Location: Office Lounge

Re: Indian Space Program: News & Discussion

Post by bala »

The Union Cabinet has approved the first step towards the Bharatiya Antariksh Station (BAS), expanding the Gaganyaan programme! This landmark decision brings us closer to a self-sustained space station by 2035 and a crewed lunar mission by 2040!

https://x.com/narendramodi/status/1836385916337651856

https://pib.gov.in/PressReleasePage.aspx?PRID=2055978
bala
BRF Oldie
Posts: 2433
Joined: 02 Sep 1999 11:31
Location: Office Lounge

Re: Indian Space Program: News & Discussion

Post by bala »

India's space ambitions take yet another important leap with the approval of the Next Generation Launch Vehicle (NGLV)! This will bring us closer to establishing the Bharatiya Antariksh Station and achieving a crewed Moon landing by 2040.

https://x.com/narendramodi/status/1836386932475023839

https://pib.gov.in/PressReleasePage.aspx?PRID=2055979

Looks like there are major quick decisions being made by Modiji and cabinet!
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Wow, that's a lot of things on the plate. Can ISRO really deliver on time? We haven't even gotten Gaganyaan flying yet.

I hope Indian industry steps up to help make all this work possible.
Yogi_G
BRF Oldie
Posts: 2433
Joined: 21 Nov 2008 04:10
Location: Punya Bhoomi -- Jambu Dweepam

Re: Indian Space Program: News & Discussion

Post by Yogi_G »

does ISRO have enough engineers to accomplish all these missions? All of them are exciting and true testament to big power status. I see nations lining up to send an astronaut to the BAS as part of "friendship" missions. The soft power aspects themselves are a huge boost apart from the scientific aspects.
gakakkad
BRF Oldie
Posts: 4707
Joined: 24 May 2011 08:16

Re: Indian Space Program: News & Discussion

Post by gakakkad »

^ yup ! They also have their own university .

Isro has been very realistic and has always delivered. The best is yet to come !
Rakesh
Forum Moderator
Posts: 19650
Joined: 15 Jan 2004 12:31
Location: Planet Earth
Contact:

Re: Indian Space Program: News & Discussion

Post by Rakesh »

Satellite launching spree to tie-ups with 60+ countries, why India is scaling up its space diplomacy
https://theprint.in/science/satellite-l ... y/2268768/
16 Sept 2024
Rakesh
Forum Moderator
Posts: 19650
Joined: 15 Jan 2004 12:31
Location: Planet Earth
Contact:

Re: Indian Space Program: News & Discussion

Post by Rakesh »

Click on link below for the press releases....

https://x.com/ImChitrakAseri/status/1836377290713788852 ---> Cost of all the approved programs as of Sept 2024:

• US $2.41 billion dollars for Gaganyaan
• US $1 billion dollars for NGLV development
• US $251 million dollars for Chandrayaan 4
• US $147 million dollars for Venus mission
• US $42 million dollars for Axiom seat
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

I hate all the "space diplomacy" preening - it sounds like a bunch of pretentious crap.

Meanwhile, here's some new company called Spantrik -- they look like a team of college batchmates
They want to build their own SpaceX style reusable rocket.

https://spantrik.com/

First thing I did was to email them a list of basic spelling & grammar errors on their website, for them to fix so that they can look more professional.
drnayar
BRFite
Posts: 1238
Joined: 29 Jan 2023 18:38

Re: Indian Space Program: News & Discussion

Post by drnayar »

gakakkad wrote: 19 Sep 2024 18:16 ^ yup ! They also have their own university .

Isro has been very realistic and has always delivered. The best is yet to come !
maybe OT., why is there no University for Defence Research
gakakkad
BRF Oldie
Posts: 4707
Joined: 24 May 2011 08:16

Re: Indian Space Program: News & Discussion

Post by gakakkad »

^ let's make one .
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Rakesh wrote: 19 Sep 2024 18:50 Click on link below for the press releases....

https://x.com/ImChitrakAseri/status/1836377290713788852 ---> Cost of all the approved programs as of Sept 2024:

• US $2.41 billion dollars for Gaganyaan
• US $1 billion dollars for NGLV development
• US $251 million dollars for Chandrayaan 4
• US $147 million dollars for Venus mission
• US $42 million dollars for Axiom seat
You left out Bharat Antariksh Station.

Out of all those programs, I feel NGLV is the most important, and deserves the highest priority.
Gaganyaan should take a backseat to that, and we should instead develop human spaceflight on NGLV by human-rating it.

Chandrayaan-4 is an important milestone for establishing a presence on the Moon.

Venus mission is much less important technologically, and is just a pure science mission (also, "vee are first asians at Venus" a la MOM)
Axiom mission is least important of all, since it's just a diplomatic one, in addition to being a consolation for not getting Gaganyaan done on time.
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Prem Kumar
BRF Oldie
Posts: 4434
Joined: 31 Mar 2009 00:10

Re: Indian Space Program: News & Discussion

Post by Prem Kumar »

While its heartening to see so many space missions approved, I feel ISRO is stretching itself thin & there seems to be a love for pride-projects

If we apply the One Thing principle, I'd rather they focus all their energies on NGLV and getting it ready in half the time. SpaceX is already using reusable rockets for a couple of years now and we are targeting to have one nearly a decade out!

Once NGLV (heavy + cheap rockets) are available, we can launch a Chandrayaan/Shukrayaan/Mangalyaan mission every 3 months if we want to! Our CY-3 took a month to reach the moon because our rockets weren't powerful enough

Starlink is already the largest constellation in the world. Now, some are talking about reviving the Brilliant Pebbles program to deploy killer satellite constellations in space, to destroy any ICBM launched from anywhere, while still in its boost phase

We have to wake up before SpaceX eats everybody's lunch

And ISRO needs to ramp up its mil-sat program significantly! The rate of launches has dropped dramatically. Given Galwan & in general the 3.5 front war, we don't have nearly as many eyes in the sky that we need to for 24x7 coverage. If ISRO cannot, DRDO should have their own program. All this civilian-nonsense needs to be put in its place and not become a kool-aid that ISRO drinks
Ashokk
BRFite
Posts: 1152
Joined: 11 Aug 2016 06:14

Re: Indian Space Program: News & Discussion

Post by Ashokk »

EOIR Payload on EOS-08 Begins Operations, Offering excellent Thermal Imaging Capabilities
The Electro Optical-Infrared (EOIR) payload on board EOS-08, ISRO’s latest Earth Observation Satellite, launched through the third developmental flight of ISRO's Small Satellite Launch Vehicle (SSLV) on August 16, 2024, has commenced its operations (EOS-08 Mission). EOIR is a state-of-the-art payload aboard EOS-08, along with the Global Navigation Satellite System-Reflectometry (GNSS-R) payload and the SiC UV Dosimeter. Developed by the Space Applications Centre (SAC-ISRO), the EOIR payload is equipped with advanced mid-wave infrared (MIR) and long-wave infrared (LWIR) channels, marking a significant advancement in thermal imaging technology with its high performance.

One of the first images captured by the EOIR payload was taken on August 19, 2024, over Pune city at 07:45 AM local time, as shown in Figure 1. The MIR image highlights the payload’s ability to capture high-resolution thermal images.
Image
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Why we need to do constellations: they mint money

sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

About 4-5 years ago, I'd had a phone conversation with the CEO of Bellatrix Aerospace, where I'd suggested that he look into air-breathing ion-propulsion for Very Low Earth Orbit satellites.

I'm now delighted to have learned that Bellatrix has recently announced its intention to develop such VLEO sats propelled by air-breathing ion-propulsion.


Indian Startup Plans to Build Ultra-Low Orbit Satellite
The spacecraft could support high-resolution imaging and 6G networks


Bengaluru Start-Up Unveils Satellite to Operate at Ultra-Low Earth Orbit

https://bellatrix.aero/project200


Image

Other private competitors in this market niche are Redwire, Skeyeon, New Orbit and Made in Space, who are researching similar technologies.


This kind of tech could bring us to the leading edge of satellite capabilities.
Remember that RLVs and satellite constellations help to feed each other.
RLVs efficiently deploy satellites at lower cost, while satellite constellations help provide the launch volumes needed to fully utilize the RLVs.
So a leading-edge constellation of this type could be a game-changer for us.




Here's an old article on them relating to past work by them in electric ion propulsion:

https://www.deccanherald.com/india/karn ... 91333.html
Last edited by sanman on 05 Oct 2024 00:54, edited 7 times in total.
drnayar
BRFite
Posts: 1238
Joined: 29 Jan 2023 18:38

Re: Indian Space Program: News & Discussion

Post by drnayar »

Ashokk wrote: 24 Sep 2024 19:42 EOIR Payload on EOS-08 Begins Operations, Offering excellent Thermal Imaging Capabilities
The Electro Optical-Infrared (EOIR) payload on board EOS-08, ISRO’s latest Earth Observation Satellite, launched through the third developmental flight of ISRO's Small Satellite Launch Vehicle (SSLV) on August 16, 2024, has commenced its operations (EOS-08 Mission). EOIR is a state-of-the-art payload aboard EOS-08, along with the Global Navigation Satellite System-Reflectometry (GNSS-R) payload and the SiC UV Dosimeter. Developed by the Space Applications Centre (SAC-ISRO), the EOIR payload is equipped with advanced mid-wave infrared (MIR) and long-wave infrared (LWIR) channels, marking a significant advancement in thermal imaging technology with its high performance.

One of the first images captured by the EOIR payload was taken on August 19, 2024, over Pune city at 07:45 AM local time, as shown in Figure 1. The MIR image highlights the payload’s ability to capture high-resolution thermal images.
[img]https://www.isro.gov.in/media_isro/imag ... eoir_1.png[/img
if i am not mistaken IIR satellites can provide early warning wrt missile launches/tests etc
Amber G.
BRF Oldie
Posts: 10032
Joined: 17 Dec 2002 12:31
Location: Ohio, USA

Re: Indian Space Program: News & Discussion

Post by Amber G. »

drnayar wrote: 05 Oct 2024 00:15

if i am not mistaken IIR satellites can provide early warning wrt missile launches/tests etc
Not a expert of these systems (may be someone here can give more particular details), but Yes, you're correct. IIR (Infrared Imaging) satellites, like ISRO's EOS-08, play a crucial role in early warning systems for missile launches/tests.

The Electro Optical-Infrared (EOIR) payload onboard EOS-08 enables detection and tracking of missile launches through -- IIR)sensing,Heat signature detection: (IR sensors identify the heat generated by a missile's exhaust plume. EOIR payload tracks the missile's trajectory etc..

High-resolution EO cameras, Object recognition (has advanced algorithms identify the missile) can provides near-real-time imagery.

ISRO's EOS-08 is a significant asset for India's national security and strategic interests.
(From what I know in USA five Next Gen OPIR satellites are planned for 2025)
sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

There's a treasure trove of information in this interview session with ISRO chairman S Somnath:

sanman
BRF Oldie
Posts: 3785
Joined: 22 Mar 2023 11:02

Re: Indian Space Program: News & Discussion

Post by sanman »

Post Reply