transmission at 10:02 -
Last position: 2026-02-19 08:00:08 (UTC)
the battery level dropped to 28% (and the temperature increased to 41°C)
Krum flew that time - speed 9,0 km/h : Grnd Speed km/h (GNSS)
Ground/Grnd speed is the horizontal component of the velocity of an aircraft relative to the Earth’s surface, also referred to as "speed over the ground".
Global Navigation Satellite System (GNSS)
Very often, “GPS” (Global Positioning System) is used instead of the abbreviation “GNSS”. However, this is only partially correct if we are talking about all constellations because GPS is one of the GNSS constellations that was put into operation by the United States.
As of 2024, the following constellations are functioning: GPS (United States’s Global Positioning System), GLONASS (Russia’s Global Navigation Satellite System), BDS (China’s BeiDou Navigation Satellite System) and Galileo (European Union’s Satellite System)
GPS:
Orbit: Medium Earth Orbit (MEO).
Altitude: About 20200 km.
Number of satellites: 31 (with reserved satellites).
Orbital planes: 6, with an inclination of about 55 degrees to the equator.
Satellite rotation time is about 12 hours.
The accuracy of standard GNSS receivers without additional correction and improvements is 5-10 meters in the horizontal plane. Various methods and technologies are used to minimize errors and improve location data to improve the accuracy of GNSS positioning.
