Source: https://www.notams.faa.gov/

Mapped up!

---

A1541/26

GSLV-F17 ROCKET LAUNCH FM SHAR RANGE, SRIHARIKOTA WILL TAKE 
PLACE AS PER FLW DETAILS.THE LAUNCH WILL BE ON ANY ONE 
OF THE DAY DRG THIS PERIOD.ACTUAL DATE OF LAUNCH WILL BE 
INTIMATED ATLEAST 24 HR IN ADVANCE THROUGH A SEPARATE NOTAM. 
 
LAUNCH PAD COORD: 134312N 0801348E 
NO FLT IS PERMITTED OVER THE DNG ZONES. 
 
 
1) DANGER ZONE -1: IS A CIRCLE OF 10 NM AROUND THE LAUNCHER. 
 
2) DANGER ZONE -2: IS AN AREA BOUNDED BY FLW COORD: 
I.?1200N 08440E 
II.?1230N 08450E 
III.?1205N 08610E 
IV.?1135N 08600E 
V. 1200N 08440E 
 
3) DANGER ZONE -3: IS AN AREA BOUNDED BY FLW COORD: 
I.?1055N 08750E 
II.?1135N 08800E 
III.?1045N 09030E 
IV.?1005N 09020E 
V. 1055N 08750E 
 
 
RTE AFFECTED IN CHENNAI FIR: 
W20, Q11, Q23, Q24, V4, V9, P761, P762, N877, N571 
 
CLOSURES/ALTN RTE FOR OVERFLYING: 
 
1. W20 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
2. Q11 NOT AVBL BTN GURAS-MMV 
 ALTN: GURAS-DCT-MMV 
 
3. Q23 NOT AVBL BTN RINTO-MMV 
 ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
4. Q24 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
5. V4 NOT AVBL BTN BOPRI-MMV 
 ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
6. V9 NOT AVBL BTN GUNRI-MMV 
 ALTN: GUNRI-V11-TTP-DCT-GUANI-DCT-MMV 
 
7. P761 NOT AVBL BTN IDASO-DUMAR 
 ALTN: IDASO-DCT-EGOLU-L518-DUMAR 
 
8. P762 NOT AVBL B TN BIKEN-NIMOV. NO ALTN RTE 
 
9. N571 NOT AVBL BTN IDASO-BIKEN 
 ALTN: VATMO-DCT-GIRNA-BIKEN 
 
10. N877 NOT AVBL BTN DUMAR-AGEGA 
 ALTN: DUMAR-P761-LEGIN-L510 
 
DEP FM CHENNAI MAY FPL AS FLW: 
 
1. W20/Q24 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
ARR TO CHENNAI MAY FPL AS FLW: 
 
1. Q11 NOT AVBL BTN GURAS-MMV 
 ALTN: GURAS-DCT-MMV 
 
2. Q23 NOT AVBL BTN RINTO-MMV 
 ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
3. V4 NOT AVBL BTN BOPRI-MMV 
 ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
4. V9 NOT AVBL BTN GUNRI-MMV 
 ALTN: GUNRI-V11-TTP-DCT- GUANI-DCT-MMV
GSLV-F17 ROCKET LAUNCH FM SHAR RANGE, SRIHARIKOTA WILL TAKE 
PLACE AS PER FLW DETAILS.THE LAUNCH WILL BE ON ANY ONE 
OF THE DAY DRG THIS PERIOD.ACTUAL DATE OF LAUNCH WILL BE 
INTIMATED ATLEAST 24 HR IN ADVANCE THROUGH A SEPARATE NOTAM. 
 
LAUNCH PAD COORD: 134312N 0801348E 
NO FLT IS PERMITTED OVER THE DNG ZONES. 
 
 
1) DANGER ZONE -1: IS A CIRCLE OF 10 NM AROUND THE LAUNCHER. 
 
2) DANGER ZONE -2: IS AN AREA BOUNDED BY FLW COORD: 
I.?1200N 08440E 
II.?1230N 08450E 
III.?1205N 08610E 
IV.?1135N 08600E 
V. 1200N 08440E 
 
3) DANGER ZONE -3: IS AN AREA BOUNDED BY FLW COORD: 
I.?1055N 08750E 
II.?1135N 08800E 
III.?1045N 09030E 
IV.?1005N 09020E 
V. 1055N 08750E 
 
 
RTE AFFECTED IN CHENNAI FIR: 
W20, Q11, Q23, Q24, V4, V9, P761, P762, N877, N571 
 
CLOSURES/ALTN RTE FOR OVERFLYING: 
 
1. W20 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
2. Q11 NOT AVBL BTN GURAS-MMV 
 ALTN: GURAS-DCT-MMV 
 
3. Q23 NOT AVBL BTN RINTO-MMV 
 ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
4. Q24 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
5. V4 NOT AVBL BTN BOPRI-MMV 
 ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
6. V9 NOT AVBL BTN GUNRI-MMV 
 ALTN: GUNRI-V11-TTP-DCT-GUANI-DCT-MMV 
 
7. P761 NOT AVBL BTN IDASO-DUMAR 
 ALTN: IDASO-DCT-EGOLU-L518-DUMAR 
 
8. P762 NOT AVBL B TN BIKEN-NIMOV. NO ALTN RTE 
 
9. N571 NOT AVBL BTN IDASO-BIKEN 
 ALTN: VATMO-DCT-GIRNA-BIKEN 
 
10. N877 NOT AVBL BTN DUMAR-AGEGA 
 ALTN: DUMAR-P761-LEGIN-L510 
 
DEP FM CHENNAI MAY FPL AS FLW: 
 
1. W20/Q24 NOT AVBL BTN MMV-KAMGU 
 ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 
 
ARR TO CHENNAI MAY FPL AS FLW: 
 
1. Q11 NOT AVBL BTN GURAS-MMV 
 ALTN: GURAS-DCT-MMV 
 
2. Q23 NOT AVBL BTN RINTO-MMV 
 ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
3. V4 NOT AVBL BTN BOPRI-MMV 
 ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV 
 
4. V9 NOT AVBL BTN GUNRI-MMV 
 ALTN: GUNRI-V11-TTP-DCT- GUANI-DCT-MMV. GND - UNL, 0315-0715, 21 MAY
03:15 2026 UNTIL 10 JUN 07:15 2026. CREATED: 07 MAY 07:16 2026

Hello Guys, so I got selected for the SAC ISRO Internship.

Basically, I am from North-East Tripura. I wanted to know if anyone from here was selected. Since I am going alone from my college

So that we can help each other out, like for shared rent, food, etc.

I am a mechanical student from BITS and wanted to know how is the experience at SAC. Is it a good learning experience? Is the internship certificate worth it?

I got an offer for ISRO SAC Intern in Ahmedabad and am contemplating on going.

I currently also have an offer to be a research intern at IIT Mandi. The professor seems nice and I am interested in the field in which he works. If I work properly for 2 months, maybe I'll even get a research paper published.

So I'm confused between the 2.

I’ve been closely observing (and interacting with) India’s space startup ecosystem over the last few years. Posting this anonymously because the gap between perception and reality is SIGNIFICANT.

Private Satellite Startups: Hype vs Execution

Since the post-2020 space sector liberalization, India has seen 15+ well-funded space startups, many of them raising capital on the promise of building and launching satellites.

On paper, this looks like a boom.

In reality, there’s a serious execution gap.

• Multiple companies have raised funds claiming near-term satellite deployments.
• Government demand (including defense-linked demand) has already been distributed across several of these players.
• There are PPP-style consortium models emerging to serve both commercial and institutional markets.

But here’s the issue:
there is significantly more noise than actual engineering output in a large part of the ecosystem.

From what I’ve personally seen, in the six years that passed :

• Many teams are not yet equipped to build reliable satellite systems end-to-end.
• In some cases, even fundamental test planning and validation pipelines are immature.
• The understanding of what constitutes “space-qualified” systems is inconsistent.

The “Launch Success” Narrative Problem

A couple of startups have publicly celebrated “satellite launches” that received widespread attention.

What’s often not discussed:

• Launch ≠ mission success
• Deployment ≠ operational satellite

In at least some cases:

• The deployment mechanism (often third-party) worked
• The launch vehicle (e.g., rideshare missions) performed as expected
• But the satellite’s in-orbit performance has limited public clarity.

This doesn’t mean failure across the board—but it does highlight a pattern:
PR milestones are being treated as technical milestones.

While Western companies expand their market presence through products, many Indian companies are raising comparable funds by showcasing deployment videos on platforms like LinkedIn and Twitter.

2. Capital, Incentives, and Market Distortion

There’s also a structural issue:

• Valuations are being driven by narrative rather than demonstrated capability
• Some companies optimize for fundraising visibility over engineering depth
• Procurement (especially L1-style) doesn’t always reward technical maturity

This creates a feedback loop:

Meanwhile:

• Credible but quieter teams struggle to access contracts
• Execution-focused companies get overshadowed by better storytellers

3. Talent and Leadership Gap

One uncomfortable truth:

India has excellent engineering talent—but
experience in building, qualifying, and operating space systems at scale is still limited.

In many startups:

• Leadership teams are strong in communication and fundraising
• But may lack deep, hands-on experience in satellite lifecycle execution
• PR is easy. Deeptech is hard. Companies may be looking at IPO/Acquisition outcomes over absolute Deeptech achievements.

Contrast this with ecosystems like the U.S. or China:

Many successful space companies were founded by people who had already built and shipped hardware in high-stakes environments

At the same time, there are instances where individuals with strong, relevant experience are overlooked in favor of more visible or better-marketed profiles—something that can slow down true capability building.

4. Strategic Drift and Missed Opportunity

There are also cases where:

• Companies were initially built in India using external technologies, then pivoted toward international markets and repositioned themselves as global players—often driven by the belief that opportunities would be more accessible in the West and funds easily available by the western ecosystem
• In practice, many encountered a tougher reality: established ecosystems tend to favor their own domestic players, making it significantly harder for newer, foreign entrants to secure consistent orders.
• And are now re-entering India as “global players”, rebranding with a stronger local identity and seeking domestic partnerships to demonstrate traction and revenue to international investors

At the same time, while the industry is still working ( and some scamming ) toward delivering robust, homegrown solutions:

India continues to rely significantly on foreign satellite capacity for critical needs—effectively channeling substantial revenue outward.

Meanwhile, domestic capabilities are not scaling at the required pace—in many cases, they are still in early stages of development.

5. What Needs to Change

If India wants to be serious about space capability (especially for defense and strategic autonomy), a few things are critical:

1. Investors should be true Deeptech, not business operators.
Technical Audits Over PR
Due diligence must go beyond decks and announcements:

• What has actually been built?
• What has been tested?
• What has flown and worked?

2. Smarter Capital Allocation
Investors need deeper technical evaluation—not just market narratives.

3. Focused Scaling (Not Fragmentation)
Instead of Government, spreading resources thin:

• Identify a few high-potential players
• Concentrate talent, capital, and orders

(Think of models like regional constellations elsewhere.)

4. Procurement Reform
Lowest-cost bidding doesn’t work for deep-tech systems where failure costs are massive.

6. Final Thought

India has the talent, the intent, and the market.

But right now, the ecosystem risks:

• Over-promising
• Under-delivering
• And delaying real capability building

There are genuinely strong teams building quietly—I hope they break through.

But unless incentives shift from visibility → execution,

India’s private space journey may take significantly longer than anticipated—potentially five years or more to truly mature. The real question is: can we, as a country, afford yet another lost decade, even in the private sector?

This is a call for reflection—for policymakers, defence leadership, IN-SPACe, investors, founders, and builders alike—because the window to act decisively is far narrower than it seems.

7. Closing

You don’t win in the space sector by chasing a vague “global differentiation.” Satellites are not a free, borderless consumer market—they are strategic assets, much like defense systems. Nations back their own. No country builds capability by depending on others to supply it.

Think of it this way: when the AK-47 was developed by Russia, the U.S. didn’t adopt it—they built their own systems like the M4 carbine. Capability is built domestically, even if alternatives already exist. US/Europe is not ready to support Indian players.

India needs to be decisive. Build and back a small number of truly capable domestic players based on real technical progress—not optics, not L1-driven distribution, and not fragmented support across dozens of companies. Scale comes from focus, not dilution.

This is not consumer tech. This is sovereign capability.

If India wants to be a land of opportunity, it has to create those opportunities—through clear demand, consistent backing, and trust in its own builders. Continuing to rely on or favor foreign providers while expecting domestic players to compete globally is a contradiction that will cost us time we don’t have. While doing this, the government has to intelligently exclude scam/fraud companies.

The choice is simple: build with intent, or remain dependent.

I am trying to register for SCIENTIST/ENGINEER-SC [TURBO MACHINERY] Post Number: 804 Advt No: LPSC/01/2026. This is the requirement:

https://preview.redd.it/r1c335pu3wzg1.png?width=758&format=png&auto=webp&s=e9f77581aace319244dd333a707932d96379eb67

Does this mean B.Tech graduates can apply or we need B.Tech and M.tech ? Thank you

Technology Transfer of ISRO Navigation Sensors to Industry

A Technology Transfer Handholding Event was conducted on 27th April, 2026 at Hyderabad, wherein technology development documents for advanced navigation sensors — Laser Gyroscope and Ceramic Servo Accelerometer, developed by ISRO Inertial Systems Unit (IISU)/ISRO, were transferred to M/s Zetatek Technologies Pvt. Ltd., Hyderabad.

The event took place at the premises of Zetatek Technologies in the presence of officials from IISU, NSIL, and Zetatek Technologies, marking a significant step towards enhanced industry participation.

The Laser Gyroscope measures angular velocity with high precision, while the Ceramic Servo Accelerometer measures linear acceleration with high stability for navigation applications.

This transfer is expected to strengthen indigenous capabilities and promote self-reliance in critical navigation technologies

I'm looking at ISRO's site and trying to understand some previous projects. I saw that one main objective of the NISAR mission is to have the capability to acquire fully polarimetric and interferometric data. I'm curious why a Sun synchronous orbit is the optimal way to achieve this.

I did use internet and AI here and there to self-explore. But if anyone went deep in this area, I would love a human response. It'll be helpful if you could discuss orbital mechanics, how this particular orbit status is best/better for sensor calibration, and other technical details in depth.

Hello everyone ,

I've got an offer for a summer internship at URSC (ISRO) from May to June 2026. Is there anyone here who has received an internship offer during the same period ? It will be nice if we can exchange some details on accommodation, travel arrangements, and other related issues.

Also, if anyone here has done his/her internship at URSC before, then please share some advice , it would be really helpful .

thankyouu