Space News Mission Log — Satellite Launches, Orbital Events & Analysis
Daily space news, satellite launch reports, orbital debris analysis and weekly roundups — grounded in live tracking data from our network monitoring 26 published reports.
GPS IIR-11: The Backbone of Global Navigation
GPS IIR-11, also known by its NORAD ID 26407, is a part of the Global Positioning System (GPS), a network of satellites providing geolocation and time information to a GPS receiver anywhere on or near the Earth. Launched on 31 March 2003, GPS IIR-11 is one of the 31 operational satellites in the GPS

Satellite Spotlight: GPS IIR-11 — The Backbone of Global Navigation
GPS IIR-11 is part of the Global Positioning System (GPS), a network of satellites that provides geolocation and time information to a GPS receiver anywhere on or near the Earth. Launched on 31 March 2003, GPS IIR-11 is one of the Block IIR satellites, which are the second generation of GPS satellit

GPS vs Galileo vs GLONASS vs BeiDou: Comparing Global Navigation Systems
GPS, Galileo, GLONASS, and BeiDou are global navigation satellite systems offering varying coverage, accuracy, and features.

Space Force Expands GPS Network Amid Satellite Close Approaches
The U.S. Space Force has contracted Lockheed Martin for two additional GPS satellites, while several close approaches in orbit are monitored.

Russia's GPS Jamming Raises Concerns Amidst Satellite Close Approaches
Russia's GPS jamming from space raises safety concerns as satellites experience close approaches.

Medium Earth Orbit: Understanding Its Role in Satellite Operations
Medium Earth Orbit (MEO) is a region of space where satellites orbit at altitudes between 2,000 and 35,786 km, crucial for navigation and communications.

GLONASS-K: Russia's Next-Generation Navigation Satellites
GLONASS-K is the third generation of Russia's Global Navigation Satellite System (GNSS), designed to provide real-time positioning and timing data for military and civilian users worldwide. The system is a counterpart to the United States' GPS (Global Positioning System) and the European Union's Gal

Understanding TLE Format: A Comprehensive Guide
Two-Line Element sets (TLEs) are crucial for tracking satellites, providing data on orbit parameters and predictions.

GLONASS-K: Russia's Advanced Navigation Satellites
GLONASS-K is the latest generation of Russia's Global Navigation Satellite System (GNSS), designed to provide precise positioning and timing services globally. The GLONASS (Global Navigation Satellite System) programme is Russia's counterpart to the United States' GPS and the European Union's Galile

Galileo FOC: Europe's Navigation Constellation
Galileo FOC (Full Operational Capability) is the European Union's global navigation satellite system, designed to provide highly accurate positioning data worldwide. Unlike the United States' GPS or Russia's GLONASS, Galileo is a civilian-controlled system, managed by the European Union Agency for t

Understanding the BeiDou Satellite System: A Comprehensive Guide
The BeiDou Navigation Satellite System, China's global GNSS, offers positioning, navigation, and timing services worldwide.

Understanding GDOP and PDOP in GNSS: A Detailed Guide
GDOP and PDOP are key metrics in GNSS, affecting positioning accuracy. Learn their roles and significance in satellite navigation.