/r/ISRO

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For anything related to Indian space agency we love but hardly know.

A fan-run subreddit for anything related to Indian Space Agency we love but hardly know.


Check out the Wiki! For FAQ and archives


2024-25 Tentative Launch Schedule

Updated on 16 January 2024

Vehicle Payload Date
PSLV-DL C58 XPoSAT 0910(IST), 1 Jan 2024
GSLV MkII INSAT-3DS NET 17 Feb 2024 [1] [2] [3] [4] [5] [6] [7]
HLVM3 Gaganyaan GX Q1 2024 [1]
TV-D2 ACES abort March 2024 [1] [2] [3]
SSLV-D3 ??? Q2 2024 [1] [2] [3] [4] [5] [6]
PSLV C59* Anvesha, Bikini Q2 2024 [1] [2] [3]
PSLV TDS-01 Q2 2024 [1] [2] [3] [4]
Falcon-9* GSAT-20 Q2 2024 [1] [2] [3]
GSLV MkII F16 NISAR Q2 or Oct 2024 [1] [2] [3] [4] [5]
PSLV-XL PROBA-3 Sep 2024 [1] [2]
PSLV C60 RISAT-1B 2024 [1]
HLVM3 Gaganyaan G1 H2 2024 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
GSLV MkII EOS-5 (aka GISAT-2) 2024 [1] [2] [3] [4] [5]
GSLV MkII CMS-4 (aka IDRSS-1) TBD [1] [2] [3] [4] [5]
HLVM3 Gaganyaan G2 2025 [1] [2]
HLVM3 Gaganyaan H1 2025 [1] [2]
PSLV 3×HRSAT TBD [1]
GSLV MkII IDRSS-2 TBD [1]
LVM3 GSAT-32 TBD [1]
LVM3 GSAT-7R TBD [1] [2]

*Procured Launch / Commercial Payload


ISRO Annual Report 2022-23

Archived Annual Reports and Outcome Budgets


Few Official Links:

ISRO Official Twitter Facebook Youtube Instagram

VSSC URSC SAC SHAR NRSC HSFC LPSC IPRC ISTRAC MCF INMCC IN-SPACe NSIL ANTRIX


Other Subreddits:

/r/Spaceflight /r/Astronomy
/r/Space /r/AstroPhotography
/r/Arianespace /r/Telescopes
/r/SpaceX /r/cubesat
/r/ULA /r/Satellites
/r/BlueOrigin /r/heavensabove/
/r/RocketLab /r/satellitewatching
/r/OrbitalATK /r/engineteststands
/r/ESA /r/rocketry
/r/NASA /r/TMRO
/r/ISS /r/rocketlaunches
/r/JAXA /r/solar_system
/r/Orbitalpodcast /r/SpacePolicy
/r/legoRockets /r/SpaceflightArt
/r/MastenSpace /r/remotesensing
/r/AmateurSatellites /r/IndiainSpace
/r/IIST r/ISROast

This is a fan-run subreddit and not official ISRO website. For official information, visit ISRO.gov.in

/r/ISRO

276,917 Subscribers

10

Tender on 3 meter long (Cu-Be) boom deployment mechanism by Space Application Centre (SAC)

Render of Deployable/Retractable Boom Mechanism

Request for Proposal For Development of Motorized Deployable/Retractable Boom Mechanism

Main: [PDF] [Archived]

Technical: [PDF] [Archived]

Description:

SAC is involved in a Technology Development Programme, which includes development of motorized deployable/retractable boom for deployable space mechanisms. It consists of a cylinderical shape boom which has a circular cross-section that is not completely joined and has a longitudinal slit, allowing it to be flattened and rolled over a shaft. In retracted condition, boom will be rolled up on the shaft in “equal sense” i.e. curvature of boom is towards the curvature of the storage shaft. Deployment of boom will take place using “cowound steel tape’ technique with help of motor & gear mechanism. This mechanism also allows the boom to be retracted back into its initial condition.

Request for Proposal For Development of Copper Beryllium (Cu-Be) Boom

Main: [PDF] [Archived]

Technical: [PDF] [Archived]

Relevant images on imgur: https://imgur.com/a/wl9KmX1

Description:

SAC is involved in a Technology Development Programme, which includes development of rollable boom for deployable space mechanisms. It consists of a cylindrical Cu-Be boom which has a circular crosssection that is not completely joined and has a longitudinal slit, allowing it to be flattened and rolled over a shaft.

Boom has to be fabricated from a flat sheet. Flat sheet has to be wounded and retained over a mandrel in cylindrical shape. By going through suitable heat treatment process, boom will retain this cylindrical shape after which mandrel will be removed and boom will be extracted.

Targeted Specifications of boom:

  • Boom's length: 3000±10 mm
  • Boom's Internal Diameter: 35±1 mm
  • Boom's perpendicularity (at full length deployment) w.r.t. axis of the shaft it is rolled on: < 0.5 degrees
  • Retractable length of boom: 2.8m (minimum)
  • Deployment rate of boom from mechanism: 30-40 mm/s
  • Minimum incremental motion of boom: 5 ± 0.5 mm
  • Boom's Straightness: < 10 mm
  • Boom's Thickness: 0.12±0.02 mm
  • Mechanism weighs 3.2 kg (boom weighing 360 grams included)
3 Comments
2024/04/14
18:42 UTC

145

Made this Agnikul SOrTeD 3D Model.

8 Comments
2024/04/11
05:55 UTC

28

Contract Engineer Issues In ISRO

What is the future of contract Engineers presently working in ISROs various departments with btech degrees working 12Hrs many times in a week working in holidays also specially ISTRAC contract Engineers not getting paid much.

Is it fair for the very prestigious organisation of INDIA to treat such employees like this.

Also behaving with them like they are some kind of illetrate worker treating like labours and such but some scientists do

And many times we do all the critical work they just attend the meeting and take all the credit in which we are not welcomed . And guess what we are not even got appreciated by them . Why do they treat us like that it is not professionalism i can bet you for that its just big ego of a guy just got promoted to so called scientists from a iti Technician i mean wtf 😒.

It was my dream place to work for but i am just changing my mind now please help me with your suggestion if any of you guys are scientists in isro please don't get offended as i face this problem that's why iam writing this post.

If any of is Scientists who cleared ICRB please help me or should i focus be a good contract Engineers as some kind of plans GOI have for us or ISRO,DOS or SPACE FORCE have for us PLEASE HELP 🥺 i respect every part of that campus.

10 Comments
2024/04/09
17:00 UTC

21

ISRO's Project A.D.M.I.R.E on resuable rockets, good stuff

6 Comments
2024/04/08
04:32 UTC

5

Developments/updates made public on 100W RTEG

Saw a previous post mentioning that ISRO is requesting industry partners for its development. I somewhat understand the importance of its secrecy but knowing DAE will it be unveiled in the last moment? I do not see good science being made for significantly long duration on the upcoming moon/interplanetary/deep-space missions without it.

So I am kinda expecting there to be at least a planned demonstrator mission for the 5W/1W version before the next Chandrayaan in 2027-28 (assuming ISRO is planning on chucking it in :P). Are the different power capacity units developed side-by-side? Any new info will be appreciated

2 Comments
2024/04/07
22:27 UTC

19

India's space prowess and possibilities - ISRO Chief Dr S Somanath Exclusive on WION

3 Comments
2024/04/07
06:37 UTC

13

A question regarding ISRO and JAXA

What is the fundamental difference between the batteries used by lander of JAXA and rover of ISRO?

Why was it that while JAXA lander survived and restarted after its power ran out but ISRO'S froze?

Was it just a temperature difference or did JAXA create a new kind of batteries?

8 Comments
2024/04/07
07:11 UTC

29

IN-SPACe Livestream for AgniKul Cosmos Agnibaan SOrTeD Mission 1 Launch on 7 April 2024 staring from 05:00 (IST).

13 Comments
2024/04/06
17:28 UTC

12

Tenders on ISRO's additive manufacturing R&D facility called 'ReDAMS'.

The tender is about EOT cranes but I was more interested in the facility itself which appears to be related to dedicated R&D project on additive manufacturing at VSSC.

Tender for Supply, Installation, Commissioning of 5T & 2T EOT Cranes for ReDAMS facility

[PDF] [Archived]

Full form of ReDAMS = Research and Development in Additive Manufacturing for Space at RFF, VSSC, Thumba (RFF = Rocket Fabrication Facility at VSSC) (Source [PDF] [Archived])

From DDG (DoS) 2023-24 [PDF] (Pg. 165) we have ₹7.56 crores allocated for it.

Building for additive manufacturing for Redams facility at RFF (project re-dams)

The layout of ReDAMS facility is provided in tender. [PDF] [Archived]

We can see it has floor space for these three AM processes along raw material storage/processing and post-processing areas:

  • Electron Beam Additive Manufacturing (EBAM)
  • Direct Energy Deposition (DED)
  • Wire Arc Additive Manufacturing (WAAM)
1 Comment
2024/04/02
11:44 UTC

21

Monthly Summary of Department of Space for February 2024

Monthly Summary of Department of Space for February 2024

[PDF] [Archived]

Few highlights from summary.

Space Transportation:

  • Launch of GSLV–F14/INSAT-3DS mission was successfully accomplished on February 17, 2024 at 17:35 hrs from SDSC.
  • Vacuum ignition test of CE20 E13 cryogenic engine HT-08 successfully conducted for a duration of 2.5 seconds in High altitude test condition at TCT, IPRC on February 13, 2024. With this test, human rating of CE20 engine powering the Human rated-LVM3 vehicle for the Gaganyaan programme has been successfully completed.
  • Qualification hot test of the PS4 engine nozzle divergent realized out of Satellite alloy for the restart mission was successfully conducted for a duration of 480 seconds in High altitude test configuration at IPRC on February 14, 2024. The replacement of columbium alloy with indigenous Satellite alloy for realizing the nozzle for the fourth stage of PSLV (PS4) is expected to bring in substantial cost savings.

Human Spaceflight:

  • Strain gauge bonding activities completed on G1 Crew Module hardware. PUF filling and Vapour Barrier Coating activities also completed in apex region of the Crew Module.
  • Propellant tanks integration activities completed for Service Module Propulsion System (SMPS) of G1 Service Module.
  • High altitude Escape Motor Static Test 09 (HEM ST-09) successfully completed at SDSC, SHAR.
  • Crew Seat and Crew display console integrated to Crew Training Simulator hardware.
  • Main parachute trial suiting completed for IADT-01. Crew Module. Interfaces for Buoyancy Augmentation System (BAS) also completed.

Safe & Sustainable Space Operations:

  • Collision Avoidance Analysis was carried out for GSLV-F14/INSAT-3DS mission to clear the nominal lift off time 12:05.
  • Daily SOPA (Space Object Proximity Analysis) and re-assessment of close approach situation for 3489 Conjunction Data Messages (CDM) from CSpOC/USSPACECOM were performed for 24 LEO and 30 GSO satellites.
  • Two Collision avoidance manoeuvres were carried out for Cartosat-2F and Emisat-1 to avoid close approach with other space objects.
  • Re-entry prediction was carried out for 21 large objects that re-entered the atmosphere. An expert team from ISRO participated in the annual re-entry campaign of IADC with ERS-2 as test object and submitted re-entry predictions.
  • Un-controlled re-entry of Cartosat-2 was monitored.
  • A Structured Training Programme was conducted on “Space Situational Awareness and Debris Management – National and Global Perspective” during 19-23 February, 2024.

IN-SPACe Activities:

(…)

  • IN-SPACe has registered 02 additional Indian Entities who wish to disseminate/sell the primary data pertaining to Indian territory and Ground Sampling Data (GSD) > 30 cm commercially from the Earth Observation / Remote Sensing satellites.
  • Five technologies have been transferred to four industries. As on date, a total of 21 technologies have been transferred to Industries through IN-SPACe.
  • A review by the Mission Readiness and Launch Clearance Committee for the launch of Agniban Sorted - a suborbital flight by M/s Agnikul was held.
  • Technical Centre: Equipment’s for RF & Opto-Electronics lab, AIT & Checkout Lab have been delivered and positioned inside the cleanroom. Two numbers of 0.8 m TVAC chambers have been commissioned. Furniture for the Coworking Space have been installed.

NSIL Activities:

  • Satellite Building: GSAT 20 is under Assembly, Integration & testing at URSC. Discussion is ongoing with M/s. SpaceX to finalize the Interface Control Document (ICD) and launch campaign activities.
  • Satcom Services: 8 Allotment letters for occasional usage of GSAT-10 and GSAT-16 satellite capacity have been issued during the month to be utilised for DSNG applications.
  • Mission Support
    • NSIL is currently providing Telemetry, Tracking and Command (TTC) support to two foreign customers for their satellites through ISTRAC ground stations.
    • NSIL is in advance stage of discussion with two Indian Industries and a foreign customer for providing TTC support for their satellites/ launch vehicle.
  • Ground Segment: NSIL is in process of releasing RFP for Supply, Installation, Commission, operation and Maintenance of Ground segment hub for Maritime Asset monitoring.
  • Technology Transfer: NSIL has signed 5 Technology Transfer Agreements with Indian Industries

Status of Rationalisation of Autonomous Bodies:

EMC has recommended that NARL be governmentalized. The recommendations of the committee in respect of NARL is under review.

2 Comments
2024/04/01
11:55 UTC

17

Found this video on Chandrayan 3, different format, quite nice

0 Comments
2024/03/31
17:02 UTC

7

Is there ANY programme for high schoolers?

I know about YUVIKA but that's only for students in grade 9, so I was wondering is there's anything for high schoolers such as myself?

1 Comment
2024/03/28
16:43 UTC

69

ISRO Yuvika is SHIT!

Let me spill the beans on my recent ordeal with the ISRO Yuvika program. I'm currently a 10th grader, but let's rewind to when I was in 9th grade, back in 2023–24. I thought I had it all - a knack for space science, rocketry, you name it. I was practically tailor-made for ISRO Yuvika.

The selection criteria seemed straightforward enough: 50% for 8th-grade performance, 10% of quiz, 10% state-level science fair, 5% for state level Olympiad action (1st to 3rd pos.), 5% for state level sports (1st-3rd pos.) and 5% for being in ncc/scouts and guides. Oh, and a whopping 15% for just being from a rural area.

So, there I was, with a solid 95.25% in 8th grade, state-level science fair under my belt, aced the quiz quicker than you can say "blast-off," and even had some state-level sports and state-level Olympiad glory. But guess what? Despite ticking all the boxes, I didn't make the cut. Why? Because I'm not from a rural area, and I didn't join some government-sponsored clubs like NCC or scouts.

The kicker? The selection list didn't bother explaining how they tallied the points or why one kid made it while another didn't, there was no cutoff/points announced. Talk about shady dealings! How am I supposed to trust a system with zero transparency? Who's to say it wasn't all just some backdoor business?

Honestly, it's a load of crap. The government being the government, I guess. What do you think?

44 Comments
2024/03/28
14:04 UTC

3

Monthly Summary of Department of Space for December 2023

Monthly Summary of Department of Space for December 2023

[PDF] [Archived]

Few highlights from summary.

Space Transportation:

(…)

  • Flight acceptance Hot test on the Cryogenic Main engine (A17) identified for the Cryogenic Upper Stage required for the GSLV F15/NISAR mission, was successfully conducted for a duration of 200 seconds on December 13, 2023.

  • Stage integration activities for the 2nd developmental flight of Test Vehicle (TVD2) for validation of the Gaganyaan Crew Escape System completed and dispatched to SDSC on December 08, 2023.

Space Applications:

  • Earth Observation:

  • Free and Open Data: India has opened up all its past satellite datasets archived since 1988 and current data of 5m and coarser to all on ‘free and open’ basis, through its Bhoonidhi portal to global users.

(…)

  • Patent was granted to NESAC/ DoS and K. J. Somaiya College of Engineering on “A System for an Unmanned Aerial Vehicle for Generating Optimal Path for Image Mapping of a Desired Area”.

Human Spaceflight:

  • Crew Module structure for G-X mission realized at industry and handed over to ISRO.
  • Mechanical Interface generation activities initiated on G-X Crew Module structure.
  • Service Module structure for G-X mission realized and handed over to ISRO.
  • Integrated Air Drop Test (IADT-01) crew module structural test and integration activities are in progress.
  • TV-D1 Crew Module structure refurbishment activities are in progress.

Safe & Sustainable Space Operations:

  • Daily Space Object Proximity Analysis and re-assessment of close approach situation for 3536 Conjunction Data Messages (CDM) received from CSpOC/USSPACECOM were performed for 23 LEO and 29 GSO satellites.
  • 3 satellites in LEO and 2 in GEO underwent collision avoidance maneuvers (CAM).
  • Re-entry prediction was carried out for 33 large objects that re-entered the atmosphere.

IN-SPACe Activities:

(…)

  • Provisional authorization was issued to M/s. OrbitConnect India Pvt Ltd for enabling provisioning of SES-12 high throughput capacity in India.
  • A Short-Term Course on Orbital Mechanics, Attitude Dynamics and control, Space based navigation and Mission planning was conducted from 18th to 22nd December 2023. A total of 58 participants from various NGEs attended the course.
  • Second leg of Virtual Space Industry Day with Italian Space Agency was conducted.
  • Joint Project Implementation Plans(JPIPs) with PixxelSpace (testing of Firefly structural qualification model), Centum (shock testing on electronics hardware)

and Dhruva Space (solar panel FM-1 testing) completed at URSC.

NSIL Activities:

  • Towards production of 5 nos. of PSLV-XL through Indian industry, NSIL conducted familiarization session for the Industry Consortium (HAL-L&T) on Quality control, Testing & Evaluation for AVN components, Actuators and sensors of PSLV.
  • Toward realization of 15 nos. of SSLV launches, Techno-commercial bid evaluation for 12 items have been completed. Purchase/ work orders for 8 items have been placed with the selected vendors. Purchase orders for remaining items will be placed shortly.
  • NSIL signed the Launce Service Agreement with M/s SpaceX for launching the GSAT-20 [GSAT-N2] on-board Falcon-9 during 2nd quarter of 2024.
  • NSIL is in process of signing 3 Launce Service Agreements (LSAs) with domestic/ international customer for launching their satellites.
  • Payload panel structure of Anvesha S/C has been delivered to User. Trial assembly of Payload module (7 panels) is completed and correction is in progress.
  • NSIL issued seven frequency allotment letters to the Broadcast users on Occasional use basis for broadcasting sports events.
  • NSIL is in process of providing TTC (Telemetry, Tracking and Command) support to a foreign customer for its satellite through ISTRAC Ground Station
  • NSIL is in process of signing two Technology Transfer Agreements (TTAs) with Indian Industries.
5 Comments
2024/03/28
12:09 UTC

10

Agnibaan SOrTeD: New NOTAM with enforcement duration between 2330-0330 (UTC), 5 to 10 April 2024.

Source: https://www.notams.faa.gov/ (pinging /u/cybertron42 )

Mapped up!


A0920/24 - 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.
   
LAUNCH PAD COORD: 133818N 0801412E
NO FLT IS PERMITTED OVER THE DNG ZONE.

DNG ZONE IS A CIRCLE OF 10NM AROUND THE LAUNCHER.

RTE AFFECTED IN CHENNAI FIR
W20, Q24, Q23, V4, V9, Q11, A465

CLOSURES/ALTN RTE
1. W20 NOT AVBL BTN MMV-KAMGU
ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU 

2. Q24 NOT AVBL BTN MMV-KAMGU 
ALTN: MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU (UNI DIRECTIONAL)

3. Q23 NOT AVBL BTN RINTO-MMV
ALTN: RINTO-DCT-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)

4. V4 NOT AVBL BTN BOPRI-MMV
ALTN: BOPRI-DCT-RINTO-DCT-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)

5. V9 NOT AVBL BTN GUNRI-MMV
ALTN: GUNRI-V11-RINTO-DCT-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)

6. Q11 NOT AVBL BTN GURAS-MMV
NO ALTN RTE

7. A465 NOT AVBL BTN GURAS-MMV
ALTN: DOKET-DCT-KOLCA-DCT-MMV 


FLW STAR NOT AVBL AT CHENNAI:
RUPKU ARR

FLW SIDS NOT AVBL AT CHENNAI:
DOHIA DEP FOR W20, Q24. GND - FL330, 2330-0330, 05 APR 23:30 2024 UNTIL 10 APR
03:30 2024. CREATED: 28 MAR 10:37 2024
9 Comments
2024/03/28
11:31 UTC

2

Presentations from NRSC User Interaction Meet (UIM) 2024

Don't know why they skipped putting UIM-2023 presentations in public but whatever..

NRSC User Interaction Meet - 2024

https://www.nrsc.gov.in/UIM_2024 [Archived]

 

Technical Session - 1

  • Indian Space Policy 2023 & Future missions [PDF] [Archived]
  • EO Data needs for Sustainable Development [PDF] [Archived]
  • Implementation of Indian Space Policy for Satellite Data Dissemination Bhoonidhi - ISRO’s EO Data Hub [PDF] [Archived]
  • Role of NSIL- Space Sector Reforms and Indian Space Policy - 2023 [PDF] [Archived]
  • Promotion & Authorization of Space Based Activities in the Country [PDF] [Archived]

Technical Session - 2

  • Space-Based Ocean Science and Applications - Contributing to UN Ocean Decade Initiatives [PDF] [Archived]
  • Ocean & Climate Studies Applications [PDF] [Archived]
  • EOS-04 (RISAT-1A) & EOS-06 (Oceansat-3) Applications in Agriculture [PDF] [Archived]
  • AI based Change Detection for Defence Lands [PDF] [Archived]
  • Applications of UAV imaging techniques for characterization of plantation crops [PDF] [Archived]

Technical Session - 3

Technical Session - 4

  • Improved Resolution of SCATSAT for Weather Forecasting [PDF] [Archived]
  • Extraction of Volume of Black Stone from inside and outside of the leased quarry areas of BajabatiHill, DharmasalaTahasil, JajpurDistrict, Odisha for the period 07-11-2005 to 01-01-2019 to comply the Directorate of Vigilance, Odisha, Cuttack arising out of Hon’ble LokayuktaCase NoL.Y-670/2021 Using CARTOSAT-1 Stereo Data and Photogrammetric Technique [PDF] [Archived]
  • Green Cover Index for National Highways of India [PDF] [Archived]
  • CARTOSAT : A Technical Odyssey Unveiling Earth’s Topography [PDF] [Archived]

Technical Session - 5

  • Utilization of RS Data for Generating Solar Energy Potential Maps [PDF] [Archived]
  • ICESat-2 based Ground photons retrieval in urban areas by using Deep Learning Approach [PDF] [Archived]
  • Data Analysis in Remote Sensing : Change Detection in LULC using Time Series and Deep Learning for Unveiling Insights with Modified SHAP [PDF] [Archived]
  • Data Science with Geospatial Analytics in PropTech [PDF] [Archived]
  • Advanced technologies using Data Science with APIs [PDF] [Archived]

Technical Session - 6

  • Global and Indian Geospatial Market and Economy [PDF] [Archived]
  • GEOSPATIAL DATA & SERVICES [PDF] [Archived]
  • Leveraging PLANET Imagery and AI/Analytics to Mitigate Food insecurity in Odisha – NRSC UIM 2024 [PDF] [Archived]
  • OGC Standards & Geospatial Data Cubes [PDF] [Archived]
  • Harnessing Mult-sensor Technologies for Disaster Monitoring & Detection [PDF] [Archived]
  • Respond to Disaster with on-demand Satellite Imagery [PDF] [Archived]
1 Comment
2024/03/27
16:45 UTC

15

How to be a janitor/welder/etc at ISRO?

I just want to see those structures irl.

I am serious mods, please do not remove.

10 Comments
2024/03/26
13:24 UTC

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