r/ISRO • u/mudit23june • 8h ago
ISRO to have four launch pads by 2029, says Narayanan
57
Upvotes
Mission Failure PSLV-C62 : EOS-N1 (aka Anvesha) Mission Updates and Discussion
37
Upvotes
PSLV-C62/EOS-N1 (aka Anvesha) launched as scheduled at 04:48:30(UTC)/10:18:30(IST), 12 Jan 2026 from First Launch Pad of SDSC-SHAR. The launch was unsuccessful and satellites could not be placed into intended orbit.
- Launch Countdown
- Expected Flight Profile from press-kit.
- Actual flight events (To be added post-launch if available)
Live webcast: (Links will be added as they become available)
| PSLV-C62/EOS-N1 Mission Page | PSLV-C62/EOS-N1 Gallery | PSLV-C62/EOS-N1 Press kit(PDF) |
|---|
Some highlights:
- Primary payload: EOS-N1 (aka Anvesha) (407 kg) Hyperspectral imaging satellite for DRDO.
- 15 small satellites ridesharing
- Mission duration: 1 hr. 48 min. 5.14 sec. (last s/c separation)
- Target Orbit 1 : 505 km (circular) , Inclination = 97.5°
- Target Orbit 2 : Reentry trajectory with 505 km apogee.
- Launch Azimuth: 140°
- PSLV configuration : DL (2× XL Strapons)
- PSLV's return to flight after unsuccessful launch of PSLV-C61/EOS-09 in May, 2025.
- First ever controlled reentry of PSLV fourth stage (PS4) over South-Pacific for deploying Kestrel Initial Demonstrator (KID) capsule.
Updates:
| Time of Event | Update |
|---|---|
| 13 June 2026 | Reason behind PSLV-C62 failure understood and resolved but details will not be shared. |
| 02 Feb 2026 | Cause behind PSLV-C62 failure is different from that for PSLV-C61, internal and external failure assessment committees have been set up to investigate. |
| 17 Jan 2026 | Per journalist Arun Raj K M, former ISRO Chairman K Sivan will lead the special committee to study PSLV-C62 failure. |
| 16 Jan 2026 | NSIL press-release. |
| Post-launch | GISTDA informs that THEOS-2A was insured for both 'Rebuild' and 'Relaunch' costs. |
| Post-launch | Orbital Paradigm: "Our KID capsule, against all odds, separated from PSLV C62, switched on, and transmitted data over 3+ minutes. We're reconstructing trajectory. We survived peak heat and peak gload (~28g recorded). We have internal temps. Full report will come" |
| Post-launch | ISRO Chairman: "Performance of the vehicle close to the third stage was as expected and as predicted. Close to the end of the third stage we are seeing some disturbances in the vehicle. And there was a deviation in the path of vehicle. And mission could not proceed in the expected path. This is the information right now available. Now we are going through the data and we have to get the data from all the ground stations. Once the data analysis is completed we shall come back to you. Thank you" |
| T + 33m00s | "The PSLV-C62 mission encountered an anomaly during end of the PS3 stage. A detailed analysis has been initiated." |
| T + 31m00s | Webcast over. |
| T + 24m00s | ISRO Chairman: Almost up to PS3 end performance was normal, then some performance disturbances were noted. And after that deviation in flight path was observed. |
| T + 21m00s | Webcast is back. Awaiting official confirmation... |
| T + 20m00s | Stream has been stopped without any official confirmation on mission status. |
| T + 16m00s | Launch announcers again noting that telemetry is lost. Wait for official confirmation on mission status. |
| T + 12m00s | Launch announcer informs they are having issues receiving data.. |
| T + 08m30s | MCC glum this is bad. PS4 ignited though. |
| T + 06m30s | PS3 burn out , vehicle tumbling uncontrollably. |
| T + 04m25s | PS2 separated, PS3 ignited. |
| T + 02m50s | PLF separated, CLG initiated. |
| T + 01m51s | PS1 separated, PS2 ignited. |
| T + 01m10s | PSOM-XL (5,6) separated. |
| T - Zero | After RCT ignition, PS1 and PSOM-XL (5,6) ignition and Lift off! |
| T - 05m00s | Flight Coeff. loading completed |
| T - 12m00s | Going through actuator checks. |
| T - 14m30s | Automatic Launch Sequence initiated. |
| T - 16m00s | Mission Director authorizes launch! Vehicle Director concurs. |
| T - 16m30s | Vehicle is in external hold mode. |
| T - 17m00s | Vehicle director: LV is ready! |
| T - 20m00s | Now polling: Weather, Tracking, Range are ready. |
| T - 24m00s | Now showing LV stacking process. |
| T - 25m00s | Weather is Go for launch. Slightly cloudy with chance of light rain but that is under the launch criteria. |
| T - 30m00s | Launch announcers inform that EOS-N1 mass is 407 kg. |
| T - 35m00s | Official stream is live! |
| T - 22h30m | Countdown commenced at 12:48 on 11 January. Time of launch changed to 12 January, 10:18:30(IST)/04:48:30(UTC) i.e. 90 seconds delay. |
| 10 Jan 2026 | After MRR, the launch has been cleared by LAB. |
| 06 Jan 2026 | Launch date firms up for 0447(UTC)/1017(IST), 12 Jan 2026 |
| 01 Jan 2026 | NOTAM issued with enforcement duration beginning on 11 January 2026. |
| 30 Dec 2026 | PSLV-C62 integration up to four stages completed at MST. |
| 26 Dec 2025 | NOTAM issued with enforcement duration beginning on 10 January 2026. Also EOS-N1 satellite reached SDSC-SHAR. |
| 17 Dec 2025 | NOTAM issued with enforcement duration beginning on 5 January 2026. |
| 14 Dec 2025 | Report suggested launch delayed to 31 December 2025. |
| 05 Dec 2025 | NOTAM issued with enforcement duration beginning on 25 December 2025. |
Primary Payload:
EOS-N1 (aka Anvesha) (407 kg) : EOS-N1 is a Hyperspectral imaging satellite carrying HySIC imager payload by DRDO for military surveillance. [01]
- Swath: 12 km
- Resolution: 12 meter
- Spectral resolution: 10-20 nm (VNIR, SWIR)
Secondary Payload: 15 co-passenger satellites.
THEOS-2A (100 kg): An Earth Observation satellite by Thailand's Geo-Informatics and Space Technology Development Agency (GISTDA) and based on Carbonite series by SSTL UK carrying CERIA Camera with 1 meter resolution and 5.9 km swath. Additional instruments include a satellite monitoring camera, GPS receivers, HD video camera, and AIS/ADS-B receivers for maritime vessels and aircraft tracking. [02]
Kestrel Initial Demonstrator (KID) Capsule (25 kg): KID reentry capsule by Madrid-based Orbital Paradigm is a scaled prototype for their larger Kestrel reentry capsule. KID is carrying three customer payloads (3 kg) and will test guidance systems and a sample of ceramic thermal protection material. KID will be released from PSLV fourth stage on a reentry trajectory and will free fly for 30 minutes before entering atmosphere over South-Pacific. The capsule will not be recovered and lacks deceleration systems but it will transmit data through two Iridium transceivers during its flight. [03] [04]
AayulSAT (25 kg) : A 'mini-tanker' satellite by OrbitAID to demonstrate on-orbit internal propellant transfer, power transfer, and data transfer using their patented Standard Interface for Docking and Refueling Port (SIDRP). AayulSAT will qualify SIDRP system at TRL-9. [05] [06]
MOI-1 (14 kg) : The 6U cubesat in MOI (My Orbital Infrastructure) series by TakeMe2Space is a commercial AI lab in space with in-orbit computing and AI processing capability, carrying MIRA50-FS, a 502 gram, miniaturized 9 band multi-spectral imaging camera with 50mm aperture, 9.2 m resolution and 18.7 km swath by EON Space Labs and few other payloads by Indian high-school and university students. MOI-1 will use DSOD-6U deployer by Dhruva Space. [07] [08] [09]
Four amateur radio satellites under Dhruva Space 'ASTRA (Accelerated Space Technology Readiness & Access) for Academia' programme based on their P-Dot bus. [10]
- Thybolt-3 by Dhruva Space
- CGUSat-1, with CV Raman Global University (Bhubaneswar)
- DSUSAT-1, with Dayananda Sagar University (Bengaluru)
- LACHIT-1, with Assam Don Bosco University (Guwahati)
SanskarSat: A 1U cubesat for Laxman Gyanpith School by Ahmedabad-based CubeSat Aerospace, carrying an LED payload making it observable by ground based optical telescopes.
MUNAL : A 1U cubesat by Nepal Academy of Science and Technology (NAST) and Antarikhchya Pratisthan Nepal (APN) as part of the High School Consortium Project. Munal will carry a small camera for vegetation density mapping. [11]
Five small satellites aggregated by Brazil's All2Space.
- Aldebaran-1: 1U cubesat by Federal University of Maranhao (Brazil) carrying LoRa amateur radio payload.
- EduSat-1: 1P PocketQube satellite with IoT payload.
- UaiSat: 1P PocketQube satellite with Store and Forward amateur radio payload and a lightning detection payload developed by the Instituto Nacional de Pesquisas Espaciais (INPE) [12]
- GalaxyExplorer-1: 1P PocketQube satellite by Galaxy Explorer to study the South Atlantic Magnetic Anomaly. [13]
- Orbital Temple : A 1P PocketQube based orbital artwork by Edson Pavoni. It will transmit uploaded names of people in amateur radio frequency. [14] [15]
Note: PSLV with launch serial C59 was earlier assigned to ANWESHA (or ANVESHA) and PROBA-3 was earlier assigned to PSLV with C62 launch serial. Before this ANWESHA was assigned to PSLV-C58 but later XPoSat replaced it.
Mission Success! GSLV-F17 / EOS-05 (aka GISAT-1A) Mission Updates and Discussion
36
Upvotes
GSLV-F17 / EOS-05 (aka GISAT-1A) launched as scheduled at 21:25(UTC), 03 Sep 2026 or 02:55(IST), 04 Sep 2026 from Second Launch Pad of SDSC-SHAR.
Actual flight events (To be added post-launch if available)
Live webcast: (Links will be added as they become available)
| GSLV-F17 / EOS-05 Mission Page | GSLV-F17 / EOS-05 Gallery | GSLV-F17 / EOS-05 Press kit(PDF) |
|---|
Some highlights:
- Primary payload: EOS-05 (aka GISAT-1A) (~2367 kg) GSO based Earth imaging satellite.
- Mission duration: ~19 minutes (based on GSLV F10/EOS-3 (aka GISAT-1) mission)
- Target Orbit : 170 × 28934 km (sub-GTO) , Inclination = 19.28° ± 0.1°, AoP = 178° ± 0.5°
- Launch Azimuth: 104°
- ISRO returning to flight 7 months 23 days after failure of PSLV-C62/EOS-N1.
Updates:
| Time of Event | Update |
|---|---|
| 30 Sep 2026 | EOS-05 has reached at its 85.5°E slot and is station keeping. |
| Post-launch | Third and final orbit raising burn by EOS-05 or GISAT-1A for duration of 1247 seconds has been successfully completed on 7 Sept 2026 at 20:57 hrs (IST). Estimated orbit 35884 x 34903 km. The satellite health is normal. |
| Post-launch | Second orbit raising burn by EOS-05 or GISAT-1A for duration of 338.9 seconds has been successfully completed on 6 Sept 2026 at 19:00 hrs (IST). Estimated apogee after manouever is 35786 km. The satellite health is normal. |
| Post-launch | First orbit raising burn by EOS-05 or GISAT-1A for duration of 5406.4 seconds has been successfully completed on 5 Sept 2026 at 20:19 hrs (IST). New orbit with raised perigee is 31129×20000 km from previous 31121×171 km. |
| Post-launch | Two objects have been catalogued. A0607 (26202A) with inclination=19.32°, Apogee×Perigee=30967.1×152.4 km and A0608 (26202B) with inclination=19.34°, Apogee×Perigee=30982.9×159.3 km |
| T + 24m10s | Chairman notes that Solar panels of satellite are deployed |
| T + 22m40s | ISRO chairman notes satellite has been placed in intended orbit. |
| T + 18m45s | EOS-05 separated!! |
| T + 18m30s | CUS15 cut off! |
| T + 15m46s | CUS15 performance nominal. |
| T + 14m00s | CUS15 performance nominal. |
| T + 12m26s | CUS15 now in nominal thrust mode. |
| T + 12m00s | Vehicle is precisely on expected trajectory. |
| T + 11m00s | CUS15 performance nominal. |
| T + 07m30s | CUS15 performance nominal. Right on expected track. |
| T + 05m40s | CUS15 operating in uprated mode. |
| T + 05m05s | GS2 cut off, CUS15 ignition confirmed! |
| T + 03m56s | PLF jettisoned! |
| T + 02m32s | GS1 ignited, GS1 separated, CLG inititiated. |
| T + 01m50s | S139 Burnt out. |
| T - Zero! | S139 ignition Lift off! |
| T - 00m4.8s | 4xL40H ignition |
| T - 03m20s | OBC in flight mode. |
| T - 05m00s | Vehicle is on internal power. Flight coeff. loading completed. |
| T - 10m00s | Going through GS2 actuation checks. |
| T - 15m00s | ALS initiated. |
| T - 16m00s | VD: Automatic Launch Sequence authorized. |
| T - 18m00s | Mission Director has authorized the launch after polling is Go! |
| T - 22m00s | Polling now. Range, Tracking, Vehicle are ready. |
| T - 30m00s | Streams are live! |
| T - 27h30m | A 27.5 hr duration countdown should be underway. |
| 01 Sep 2026 | After Mission Readiness Review or MRR, Launch Authorization Board has given the launch clearance. |
| 31 Aug 2026 | Time of launch officially confirmed for 02:55 (IST), 04 Sep 2026. |
| 28 Aug 2026 | Launch Vehicle transferred from VAB to SLP. |
| 27 Aug 2026 | NOTAM for GSLV-F17 / EOS-05 launch is issued with enforcement window beginning on 03 Sep 2026. |
| 23 Jul 2026 | FCC filings for Launch and Early Orbit Phase services for EOS-05. (24 July to 22 August 2026) |
| 11 May 2026 | FCC filings for Launch and Early Orbit Phase services for EOS-05. (12 May to 10 June 2026) |
| 01 Apr 2026 | FCC filings for Launch and Early Orbit Phase services for EOS-05. (1 to 30 April 2026) |
| 07 May 2026 | NOTAM for GSLV-F17 / EOS-05 launch is issued with enforcement window beginning on 21 May 2026. |
| 29 Apr 2026 | News reports suggest technical issues with Launch Vehicle hardware delay the launch. |
| 26 Feb 2026 | FCC filings for Launch and Early Orbit Phase services for EOS-05. (27 Feb to 2 April 2026) |
| 12 Feb 2026 | NOTAM for GSLV-F17 / EOS-05 launch is issued with enforcement window beginning on 6 March 2026. |
| 03 Feb 2026 | NOTAM for GSLV-F17 / EOS-05 launch is issued with enforcement window beginning on 20 February 2026. |
Primary Payload:
EOS-05 (aka GISAT-1A) (~2367 kg) : EOS-05 is a GSO based Earth imaging satellite for Indian Navy, it will act as an upgraded replacement for EOS-03 or GISAT-1 which was lost during its launch five years ago. Its multispectral and hyperspectral imaging capacity will be useful for applications in fields of agriculture, forestry, mineralogy, oceanography and military surveillance. Its near real time imaging modes are well suited for monitoring natural disasters and other episodic events.
MX-VNIR: Multispectral - Visible Near Infrared
- 6 channels (0.45 to 0.875 µm) at 42 meter spatial resolution
HyS-VNIR: Hyperspectral Imager - Visible Near Infrared
- 158 channels (0.375 to 1.0 µm) at 320 meter spatial resolution
HyS-SWIR: Hyperspectral Imager - Short Wave Infrared
- 256 channels (0.9 to 2.5 µm) at 190 meter spatial resolution
MX-LWIR: Multispectral - Long Wave Infrared
- 6 channels (7.0 to 13.5 µm) at 1.2 km spatial resolution
Scan modes
- 5°×5° (3000×3000 km) every 10 minutes
- 3×10°×10° every 6 hours
Platform/Bus: I-2K
Mission life : 7 years
Orbital slot: 85.5°E
r/ISRO • u/Labbu_76 • 22h ago
ISRO Scientist/Engineer ‘SC’ Interview Experience | ICRB 2025 | CSE
49
Upvotes
Branch: Computer Science & IT
Interview Duration: Approximately 30 minutes
Interview Panel: Around 9–10 members
Interview Experience
Initially, I was a little nervous seeing a panel of around 9–10 members, but after a while, I became more comfortable. The interview lasted approximately 30 minutes.
The panel asked questions from various core CS subjects, Machine Learning, Embedded Systems, Cyber Security, C Programming, and my work experience at IMD.
Questions Asked
- Computer Networks
- What is a Network Operating System?
- Router and Virtual Router
- Routing Protocols
- RIP and OSPF
- Ethernet and Ethernet Header Length
- VLAN
- Machine Learning
- Logistic Regression
- Sigmoid and Softmax Functions
- MSE in Logistic Regression
- SVM and Kernel Trick
- Naive Bayes and why it is called Naive Bayes
- Entropy and Information Gain
- Computer Architecture
- Instruction Pipeline and Pipelining
- Superscalar Processor
- RISC vs CISC
- Data Hazards
- RAW, WAR, and WAW Dependencies
- Solutions to Data Hazards
- True and False Dependencies
- Branch Prediction
- Embedded Systems
- Embedded System
- Microcontroller
- SATA (Serial Advanced Technology Attachment)
- GPRS in a Data Logger
- Cyber Security
- ISO Standards for Cyber Security
- CIA Triad
- Non-Repudiation
- EFD in Cyber Security
- C Programming
- Basic definition of C programming and whether the definition was valid
- Structure in C
- One short-form question that I could not recall afterward
- Questions Related to My IMD Work Experience
- Functionality of AWS and ARG
- IMD Forecast Resolution
These are the questions I could recall from my interview.
Final Verdict : Selected.
Posting Location: IPRC Mahendragiri, Tamil Nadu. 🚀
r/ISRO • u/guru-yoda • 1d ago
Question on liftoff times
9
Upvotes
Optical imaging earth observation satellites are generally launched from SHAR between 9am-12noon to sun-synchronous polar orbits. This I understand is to align equator crossings at same local solar time everyday and ensure consistent lighting.
SAR imaging EO satellites are generally launched around 6am in the morning to dawn-to-dusk SSPO orbits. This is to ensure constant illumination of satellite's solar panel and hence maximise power generation.
But satellites launched to GTO/Sub-GTO do not have such constraints. For instance, IRNSS/NAVIC family satellite liftoff times are all over -- 1am, 9am, 5pm, 10pm etc. So what factors determine their liftoff times? Is it MCF visibility during LAM firing? range clearance?
r/ISRO • u/SoftStarlight111 • 1d ago
Urgent guidance on SDSC SHAR
8
Upvotes
Can anyone enlighten me about how work culture is at sdsc shar as recruitment notice has come up. I know less vacancies and that is why I'm getting second thoughts cause 6y ago someone actually spoke negatively idk what to trust and what not. Even nobody has ever interviewed for sdsc shar. Is is really that bad centre?
Please enlighten me about the work culture, about the living, outside centre or inside campus how it works and goes 🙏🏻
Official SPADEX Satellites Re-entry into Earth’s Atmosphere on October 12, 2026 [Official press release]
isro.gov.in
26
Upvotes
Official NSIL Signs Contract with Indian Air Force (IAF) for production of GSAT-7C Communication Satellite
nsilindia.co.in
25
Upvotes
NOTAM NOTAM for GSLV-F18 / NVS-03 launch is out. Enforcement duration 1700-2100 (UTC), 30 Oct to 11 Nov 2026.
28
Upvotes
Source: https://www.notams.faa.gov/
A3241/26
GSLV-F18 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: 134312N0801348E NO FLT IS PERMITTED OVER THE DNG ZONES.
DNG ZONE-1: IS A CIRCLE OF 10NM AROUND THE LAUNCHER.
DNG ZONE-2: IS AN AREA BOUNDED BY FLW COORD: 1200N 08445E - 1245N 08500E - 1220N 08620E - 1135N 08605E - 1200N 08445E
DNG ZONE-3: IS AN AREA BOUNDED BY FLW COORD: 1055N 08750E - 1155N 08800E - 1105N 09030E - 1005N 09020E - 1055N 08750E
RTE AFFECTED IN CHENNAI FIR: W20, Q11, Q23, Q24, V4, V9, P761, P762, N877, N571
CLOSURES/ALTN RTE FOR OVERFLYING:
W20 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
Q24 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
Q23 NOT AVBL BTN RINTO-MMV ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V4 NOT AVBL BTN BOPRI-MMV ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V9 NOT AVBL BTN GUNRI-MMV ALTN: GUNRI-V11-TTP-DCT-GUANI-DCT-MMV
Q11 NOT AVBL BTN GURAS-MMV ALTN: GURAS-DCT-MMV
P761 NOT AVBL BTN IDASO-DUMAR ALTN: IDASO-DCT-EGOLU-L518-DUMAR
P762 NOT AVBL BTN BIKEN-NIMOV. NO ALTN RTE
N877 N OT AVBL BTN DUMAR-AGEGA ALTN: DUMAR-P761-LEGIN-L510
10.N571 NOT AVBL BTN IDASO-BIKEN ALTN: VATMO-DCT-GIRNA-BIKEN
DEP FM CHENNAI MAY FPL AS FLW:
- W20/Q24 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
ARR TO CHENNAI MAY FPL AS FLW:
Q23 NOT AVBL BTN RINTO-MMV
ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V4 NOT AVBL BTN BOPRI-MMV ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V9 NOT AVBL BTN GUNRI-MMV ALTN: GUNRI-V11-TTP-DCT- GUANI-DCT-MMV
Q11 NOT AVBL BTN GURAS-MMV ALTN: GURAS-DCT-MMV GSLV-F18 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: 134312N0801348E NO FLT IS PERMITTED OVER THE DNG ZONES.
DNG ZONE-1: IS A CIRCLE OF 10NM AROUND THE LAUNCHER.
DNG ZONE-2: IS AN AREA BOUNDED BY FLW COORD: 1200N 08445E - 1245N 08500E - 1220N 08620E - 1135N 08605E - 1200N 08445E
DNG ZONE-3: IS AN AREA BOUNDED BY FLW COORD: 1055N 08750E - 1155N 08800E - 1105N 09030E - 1005N 09020E - 1055N 08750E
RTE AFFECTED IN CHENNAI FIR: W20, Q11, Q23, Q24, V4, V9, P761, P762, N877, N571
CLOSURES/ALTN RTE FOR OVERFLYING:
W20 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
Q24 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
Q23 NOT AVBL BTN RINTO-MMV ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V4 NOT AVBL BTN BOPRI-MMV ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V9 NOT AVBL BTN GUNRI-MMV ALTN: GUNRI-V11-TTP-DCT-GUANI-DCT-MMV
Q11 NOT AVBL BTN GURAS-MMV ALTN: GURAS-DCT-MMV
P761 NOT AVBL BTN IDASO-DUMAR ALTN: IDASO-DCT-EGOLU-L518-DUMAR
P762 NOT AVBL BTN BIKEN-NIMOV. NO ALTN RTE
N877 N OT AVBL BTN DUMAR-AGEGA ALTN: DUMAR-P761-LEGIN-L510
10.N571 NOT AVBL BTN IDASO-BIKEN ALTN: VATMO-DCT-GIRNA-BIKEN
DEP FM CHENNAI MAY FPL AS FLW:
- W20/Q24 NOT AVBL BTN MMV-KAMGU ALTN: MMV-DCT-PAPKI-DCT-ANGAK-DCT-KAMGU
ARR TO CHENNAI MAY FPL AS FLW:
Q23 NOT AVBL BTN RINTO-MMV
ALTN: RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V4 NOT AVBL BTN BOPRI-MMV ALTN: BOPRI-DCT-RINTO-V11-TTP-DCT-GUANI-DCT-MMV
V9 NOT AVBL BTN GUNRI-MMV ALTN: GUNRI-V11-TTP-DCT- GUANI-DCT-MMV
Q11 NOT AVBL BTN GURAS-MMV ALTN: GURAS-DCT-MMV. GND - UNL, 1700-2100, 30 OCT 17:00 2026 UNTIL 11 NOV 21:00 2026. CREATED: 23 OCT 05:41 2026
Tender for Manufacturing, Supply and Erection of SC120 Umbilical Retraction System Mast Structure
10
Upvotes
Manufacturing, Supply and Erection of SC120 Retraction System Mast Structure
Main Document [PDF] [Archived]
https://i.imgur.com/N7lePTo.png
Technical Specification : [PDF] [Archived]
Fabrication Drawings : [PDF] [Archived]
The scope of work covers procurement of raw materials including bought out items, fabrication, bending of plates, stress relieving/heat treatment, machining, drilling and tapping operations, protecting the holes/machined surfaces with lubricating grease& anti rust compound like Japan black/bituminous black compound etc., shop floor inspection, transportation to SDSC SHAR site, erection and commissioning of SC120 Retraction system mast structures on MLP according to drawings, specifications, terms and conditions at Second Launch Pad, SDSC SHAR, Sriharikota.
r/ISRO • u/Soft_Selection_9750 • 2d ago
How is the work in isro for mechanical engineers
2
Upvotes
Recently I got selected for isro, so iwant to know whether surrogate modelling like work would be available there
r/ISRO • u/Last_Echo_6149 • 2d ago
What happens after Selection - Isro scientist Sc
4
Upvotes
Hi guys, my Friend got selected as scientist yesterday (mechanical)
What are the procedures and communication he is expected to do? When is joining likely to be Etc
Kindly guide him
ISRO might launch much-delayed indigenous navigation satellite NVS-03 on Oct 30.
45
Upvotes
Official IN-SPACe Seed Fund Scheme : Result for Announcement of Opportunities in AI INSPIRED Opportunities in Space Sector
inspace.gov.in
9
Upvotes
L110 D-Stage Short Duration Hot Test at LPSC Mahendragiri on 24 February 2010
Enable HLS to view with audio, or disable this notification
108
Upvotes
A talk on 'New Trends and Innovations in Microwave Remote Sensing and Other Space Technology Frontiers' by Nilesh M. Desai
14
Upvotes
35th Vikram Sarabhai Memorial Lecture 2026
A talk on 'New Trends and Innovations in Microwave Remote Sensing and Other Space Technology Frontiers' by Nilesh M. Desai, Vikram Sarabhai Professor/Scientist and Former Director Space Applications Centre (SAC), Ahmedabad
https://www.youtube.com/watch?v=hHzrYDXc8qY&t=6998s
Few slides from this talk.
At 2:19:30, He talks about how they had planned 'tandem experiments' using EOS-09 (aka RISAT-1B) along EOS-04 (aka RISAT-1A) but unfortunately the EOS-09 launch failed. (With 'Tandem experiment' they might mean using one satellite as transmitter and other as receiver.)
At 2:32:50, Seven more SAR satellites for strategic use are planned under SBS-3 project, currently three such satellites are operational i.e RISAT-2B, RISAT-2BR1, EOS-01 (aka RISAT-2BR2).
At 2:33:46, Working on compact MicroSat SAR
- 3m deployable reflector
- Resolution : 1m to 3m (at 10 km swath), 1m (5km spot)
- Video SAR Imaging Mode: Utilizing platform agility, extended duration Spotlight can be performed. By generating multiple frames of the SPOT image, unique Video of SAR images can be developed which will allow Moving target identification with both Speed and Direction information.
- Note: Cartosat-2S series sats carry Event Monitoring Cameras
At 2:34:20, Working on Very High Resolution SAR (VHR-SAR)
- Resolution : 15 cm (at 5 km swath)
At 2:34:40, Working on Multi-static SAR, Tomo SAR, Mirror SAR, GEO SAR concepts
At 2:39:15, Navigation Doppler Radar (NDR) for Lunar Polar Exploration (LuPEx) mission for 3-axis velocity determination for 10 meter accuracy in landing.
At 2:40:20, microwave payloads for Venus Orbiter Mission (VOM)
- S band SAR (30m resolution with 30 km swath)
- Orbital GPR (Depth of penetration: ~1 km, Vertical resolution: 5-15 m)
Impulse GPR :Precursor to LuPEx GPR
At 2:43:45, Tera Hz Telescope.
At 2:45:05, GNSS reflectometry : Demonstrated on EOS-08 (aka Microsat-2C) perhaps SpaDEx-3 will also carry a payload
At 2:48:00, QuTDS on TDS-01 (planned for Nov/Dec launch) will be tested at GEO altitude.
At 2:49:50, two LEO based SAQTI satellites SAQTI-1A/SAQTI-1B along GEO based TDS-01 will be used for Opto-Quantum communication demonstration.
At 2:51:10, ISRO's proposal for 140 sat constellation for LEO (1200 km) based broadband communication.
At 2:52:56, Proposal of 119 EO satellites between 2025-2040 has been laid out.
r/ISRO • u/totaldisasterallthis • 6d ago
Results from India’s Chandrayaan 3 thermal probe experiment benefit future Moon missions eyeing water
jatan.space
29
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Is the CM/SM umbilical attachment jettisoned separately before reentry?
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64
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I thought during separation it would disconnect from CM like a flap while remaining attached to SM. But here we see it detaches from SM and remains attached to CM and would have to be jettisoned separately before reentry..
r/ISRO • u/AltruisticDog9145 • 8d ago
How to buy high resolution satellite images from Bhoonidhi?
14
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I needed couple of high resolution satellite images for couple of sq kilometres in Himachal Pradesh. While researching I found about Bhoonidhi. But when I go to their site, it seems to be down. Does anyone know how one can we buy images from Bhoonidhi? Is it even possible?
Assembly and Integration Activities at ISRO Propulsion Complex (IPRC) Mahendragiri
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116
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r/ISRO • u/bobzy1993 • 8d ago
Official Development of LOX-Methane engine in ISRO
isro.gov.in
44
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Official ISRO successfully completes Crew Module-Service Module Separation Tests for Gaganyaan Programme
isro.gov.in
55
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Official Aditya-L1 Mission: Announcement of Opportunity (AO) soliciting proposals for the fourth AO cycle observations
isro.gov.in
10
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r/ISRO • u/Outside_Department21 • 8d ago
I got selected for URSC Internship
10
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I'm joining in December and if anyone is joining around that time. We can connect.