Mission File Satellites IDRSS-1 and IDRSS-2 Operator ISRO Mission Type Geostationary data-relay satellite system Mass ~2,000 kg class each (I-2K extended bus) Launch Vehicle GSLV Mk II Launch Site Second Launch Pad, Satish Dhawan Space Centre, Sriharikota Target Window 2027, TBD – per public mission trackers Status Approved and funded since the 2019–20 budget; still … Read more
Mission File Satellite AayulSAT-1A Operator OrbitAID Aerospace Mission Type In-orbit refuelling technology demonstrator (internal propellant, power & data transfer) Mass ~25 kg tanker-class demonstrator Launch Vehicle SSLV (rideshare) Launch Site First Launch Pad, Satish Dhawan Space Centre, Sriharikota Target Window NET October 2026 Status Rebuild – original lost on PSLV-C62 (January 12, 2026) Next Step … Read more
RLV File Programme RLV Technology Demonstration Programme (RLV-TD) Vehicle Name Pushpak Developed By ISRO – Vikram Sarabhai Space Centre (VSSC) First Flight HEX-01, May 23, 2016 (suborbital hypersonic test) Landing Tests Completed 3 of 3 – LEX-01, LEX-02, LEX-03 Latest Milestone LEX-03 autonomous landing, June 23, 2024 Next Phase OREX (orbital re-entry) and SPEX (scramjet … Read more
Mission File Company Bellatrix Aerospace Founded 2015 Founders Rohan Ganapathy & Yashas Karanam Headquarters Bengaluru, India Focus Satellite propulsion & orbital transfer vehicles 2026 funding raised $20 million (~₹190 Cr) Pre-Series B Latest deal VLEO demo satellite with Korea’s TelePIX (June 2026) First full satellite Harbinger — launched 30 Mar 2026 In This Article What … Read more
Mission File Satellite NVS-03 (IRNSS-1L) Launch vehicle GSLV-F18 Launch window October 2026 Launch site SDSC SHAR, Sriharikota Mass 2,232 kg Target orbit Geosynchronous, 129.55°E Atomic clock Indigenous Rubidium (iRAFS) Design life 12 years In This Article What Is NVS-03 and Why Does It Matter? The Atomic Clock Story: From Swiss Failure to Indian Comeback Inside … Read more
Quick Comparison GSLV payload (GTO) About 2,500 kg LVM3 payload (GTO) About 4,200 kg GSLV cost per launch Roughly Rs 390 to 400 crore LVM3 cost per launch Roughly Rs 400 to 405 crore GSLV first flight 2001 (Mk I), 2010 (Mk II) LVM3 first flight 2017 GSLV flights so far 20, with 14 fully … Read more
Quick Comparison PSLV payload (Sun synchronous orbit) 1,100 to 1,750 kg, depending on variant SSLV payload (Sun synchronous orbit) About 300 kg, rising to near 390 kg after its 2025 upgrade PSLV cost per launch Roughly Rs 130 to 200 crore SSLV cost per launch Roughly Rs 30 to 35 crore PSLV first flight 1993 … Read more
Engine File Developed by ISRO (LPSC) Programme CUSP Engine CE-7.5 Propellants Liquid H2 + Liquid O2 Cycle Staged combustion Used in GSLV Mk II upper stage Inducted GSLV-D5, Jan 2014 Status Operational In This Article What Is a Cryogenic Engine? Why Were Cryogenic Engines Developed? How Does a Cryogenic Engine Work? Why Is a Cryogenic … Read more
Discover what NavIC is, how India’s indigenous satellite navigation system works, how it compares with GPS, and why it is becoming increasingly important for transportation, defence, and everyday navigation.