NASA JPL Global Differential GPS (GDGPS) System. (2023). Ground-Based Global Navigation Satellite System (GNSS) Guardian GLONASS daily antenna phase maps (meta data, 24-hour files) [Data set]. NASA Crustal Dynamics Data Information System. https://doi.org/10.5067/GNSS/GDGPS_ANT_PHASE_MAP_META_GLO_001 Date Accessed: 2026-05-06
NASA JPL Global Differential GPS (GDGPS) System. “Ground-Based Global Navigation Satellite System (GNSS) Guardian GLONASS Daily Antenna Phase Maps (Meta Data, 24-Hour Files).” NASA Crustal Dynamics Data Information System, 2023. doi:10.5067/GNSS/GDGPS_ANT_PHASE_MAP_META_GLO_001. Date Accessed: 2026-05-06
NASA JPL Global Differential GPS (GDGPS) System. Ground-Based Global Navigation Satellite System (GNSS) Guardian GLONASS Daily Antenna Phase Maps (Meta Data, 24-Hour Files). NASA Crustal Dynamics Data Information System, 2023, doi:10.5067/GNSS/GDGPS_ANT_PHASE_MAP_META_GLO_001. Date Accessed: 2026-05-06