GPS Ionospheric Delay Calculator (L1 Band)

GPS signals slow down while traversing the ionosphere due to free electrons affecting wave speed especially on L1 frequency. Estimating this ionospheric delay is essential for accurate pseudorange corrections, particularly for single frequency receivers.

GPS Ionospheric Delay Calculator

INPUTS:

• Total Electron Content (TEC) = 10^17 el/m^2
• Frequency in GHz = 1.57542 GHz (as per Standard GPS L1)

OUTPUTS:

• Ionospheric delay = 1.62 meters

GPS Ionospheric Delay Formula

Benefits/Applications

• Quantifies L1 band signal delay caused by ionospheric electrons.
• Improves positioning accuracy by applying delay corrections or modeling.
• Supports GNSS algorithm development and atmospheric effect analysis.

Summary: The Ionospheric Delay Estimator offers a necessary correction step for high precision applications and GNSS education tools, particularly where dual frequency ionosphere free combinations are not available.