Context:

Recently, India’s defence public sector enterprise Bharat Electronics Limited (BEL) has signed a Memorandum of Understanding (MoU) with Bengaluru-based space-technology startup Bellatrix Aerospace to jointly design, develop, and manufacture satellite systems and payloads for Very Low Earth Orbit (VLEO) operations.

About Very Low Earth Orbit (VLEO):

• • • Very Low Earth Orbit (VLEO) refers to satellites operating at altitudes approximately between 150 km and 450 km above Earth.
    • This orbit lies below conventional Low Earth Orbit (LEO) satellites, which usually operate between 500 km and 2,000 km.

Key Characteristics:

• • • Atmospheric drag: Satellites in VLEO encounter thin atmospheric particles, which slow them down and require continuous propulsion to maintain orbit.
    • Advanced propulsion systems: Electric or green propulsion technologies are used to counter drag and maintain station-keeping.
    • Closer proximity to Earth: Being closer to the planet enables higher-quality observations and faster communication signals.

Advantages of VLEO Satellite Systems:

• • • High-Resolution Earth Observation
    • Satellites in VLEO can capture very high-resolution images, enabling improved monitoring for:
      • Border surveillance
      • Disaster management
      • Agriculture monitoring

Ultra-Low Communication Latency:

• • • Shorter distance to ground stations allows faster data transmission, beneficial for:
      • Real-time communications
      • Defence operations
      • Broadband satellite networks.

Lower Launch Costs:

• • • Lower orbital altitude means less energy required for deployment, potentially reducing launch costs.

Reduced Space Debris:

• • • VLEO orbits are sometimes called “self-cleaning orbits.”
    • If a satellite fails, atmospheric drag causes it to re-enter and burn up quickly, minimizing long-term space debris.

About the Organizations:

• • • Bharat Electronics Limited (BEL):
      • A Navratna Defence Public Sector Undertaking (PSU) under the Ministry of Defence.
      • Specializes in advanced electronics, radars, communication systems, and defence equipment.
      • Increasingly expanding into space and satellite technologies.
    • Bellatrix Aerospace:
      • A Bengaluru-based deep-tech space startup founded in 2015.
      • Focuses on satellite propulsion systems and in-orbit mobility solutions.
      • Known for developing electric and green propulsion technologies for small satellites.

Significance for India:

The partnership is strategically important for India’s space ecosystem.

• • • Boost to Aatmanirbhar Bharat in space technology: Enhances indigenous capabilities in satellite manufacturing and propulsion.
    • Strengthening defence and strategic capabilities: High-resolution surveillance satellites can support border monitoring and national security.
    • Development of next-generation satellite technologies: Positions India in the emerging VLEO satellite market, a rapidly growing sector globally.
    • Public–private collaboration in space: Reflects the growing synergy between PSUs and space startups following reforms in India’s space sector.

Conclusion:

The collaboration between Bharat Electronics Limited and Bellatrix Aerospace marks an important step in advancing India’s capabilities in Very Low Earth Orbit satellite technology. By combining BEL’s defence electronics expertise with Bellatrix’s propulsion innovations, the partnership could help India develop cost-effective, high-performance satellite platforms for defence, communication, and Earth-observation missions.