# NVS-02 > Indian navigation satellite, left in an elliptical orbit following engine failure **Wikidata**: [Q25428050](https://www.wikidata.org/wiki/Q25428050) **Wikipedia**: [English](https://en.wikipedia.org/wiki/NVS-02) **Source**: https://4ort.xyz/entity/nvs-02 ## Summary NVS-02 is an Indian navigation satellite developed and operated by the Indian Space Research Organisation (ISRO) as part of the Navigation with Indian Constellation (NavIC). Launched on January 29, 2025, the satellite was left in a highly elliptical orbit following a failure of its liquid apogee engine. It is the successor to the NVS-01 satellite and is built on the I-2K spacecraft bus. ## Key Facts - **Launch Date:** January 29, 2025, at 00:53 - **Operator/Manufacturer:** Indian Space Research Organisation (ISRO) - **Launch Vehicle:** Geosynchronous Satellite Launch Vehicle Mark II (GSLV-F15) - **Launch Weight:** 2,250 kilograms - **Spacecraft Bus:** I-2K - **Power System:** Two spacecraft solar arrays generating 3,000 W - **Orbit Status:** Highly elliptical orbit (following engine failure) - **Significant Event:** Liquid apogee engine failure occurred circa February 2, 2025 - **Part of:** Navigation with Indian Constellation (NavIC) - **Identification:** COSPAR ID 2025-020A; SCN 62850 ## FAQs ### Q: What is the purpose of NVS-02? A: NVS-02 is a navigation satellite designed to provide positioning, navigation, and timing services as part of the Navigation with Indian Constellation (NavIC). It was manufactured by ISRO to maintain and enhance India's regional satellite navigation capabilities. ### Q: What happened to NVS-02 after its launch? A: While the satellite was successfully launched into orbit on January 29, 2025, it experienced a failure of its liquid apogee engine around February 2, 2025. This technical failure resulted in the satellite being left in a highly elliptical orbit rather than its intended final position. ### Q: Which rocket was used to launch NVS-02? A: NVS-02 was launched using the Geosynchronous Satellite Launch Vehicle Mark II (GSLV), specifically the GSLV-F15 mission. The launch took place from the Second Launch Pad at the Satish Dhawan Space Centre in India. ## Why It Matters NVS-02 represents a significant step in the evolution of the Navigation with Indian Constellation (NavIC), India's independent regional navigation system. As a second-generation satellite following NVS-01, it was designed to bolster the constellation's reliability and service coverage. The satellite's 2,250 kg mass and 3,000 W power capacity reflect the technical requirements of modern regional positioning systems. The mission is also notable for its challenges; the failure of the liquid apogee engine shortly after launch highlights the complexities of orbital insertion for geosynchronous-class satellites. Because the satellite remains in a highly elliptical orbit, the event impacts the planned expansion of the NavIC network, which is critical for both civilian and strategic navigation needs within the Indian subcontinent and surrounding regions. ## Notable For - **Second-Generation Series:** It is the second satellite in the NVS series, following NVS-01. - **Heavy Launch Mass:** Features a launch weight of 2,250 kg, utilizing the I-2K spacecraft bus. - **Power Capacity:** Equipped with two solar arrays providing 3,000 W of power. - **Mission Incident:** Experienced a significant liquid apogee engine failure on approximately February 2, 2025, preventing it from reaching its intended operational orbit. ## Body ### Mission and Constellation NVS-02 is a dedicated navigation satellite belonging to the Navigation with Indian Constellation (NavIC). It was designed, manufactured, and is operated by the Indian Space Research Organisation (ISRO). The satellite serves as a direct successor to NVS-01 in the ongoing development of India's regional satellite navigation infrastructure. ### Technical Specifications The spacecraft is built upon the I-2K bus, a standard platform for Indian communication and navigation satellites. - **Mass:** The satellite had a launch weight of 2,250 kg. - **Power:** It is powered by two spacecraft solar arrays that generate a total of 3,000 W. - **Propulsion:** The satellite was equipped with a liquid apogee engine intended for orbital maneuvers. ### Launch Details The launch occurred on January 29, 2025, at 00:53. The mission utilized the Geosynchronous Satellite Launch Vehicle Mark II (GSLV-F15). The launch took place at the Satish Dhawan Space Centre Second Launch Pad, marking India's first launch of 2025. ### Orbital Failure Following a successful initial launch, the mission encountered a significant anomaly. On approximately February 2, 2025, the satellite's liquid apogee engine failed. This failure prevented the spacecraft from completing its planned orbital transitions, leaving it in a highly elliptical orbit. The satellite is tracked under the Satellite Catalog Number 62850 and COSPAR ID 2025-020A. ## References 1. [Source](https://space.skyrocket.de/doc_sdat/irnss-2.htm) 2. Space-Track 3. [Source](https://spacenews.com/indias-first-launch-of-2025-sends-nvs-02-navigation-satellite-into-orbit/) 4. [Source](https://www.reuters.com/technology/space/india-sends-navigation-satellite-into-orbit-isro-rocket-landmark-launch-2025-01-29/) 5. [Source](https://www.isro.gov.in/media_isro/pdf/GSLVF15/GSLV-F15_NVS-02_EngBrochure240125.pdf) 6. [Source](https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html)