Zakrajsek Andrés F anfeza@gmail.com Krocker Ralf ralf.krocker@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/ralf-krocker.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2026 Position measurements at GNSS station SMR5 in 2025 with links to RINEX data files dataset https://doi.org/10.1594/PANGAEA.994085 2026-06-18T09:05:07 https://doi.org/10.1594/PANGAEA.770301 SMR5 GNSS long-term raw-data series is aimed at contributing to the scientific research of Earth-System-involved global- as well as Antarctic-regional processes, improving International Terrestrial Reference Frame (ITRF) redefinitions, and benefiting society through enhanced GNSS-derived applications and services. The dataset was gathered at the Argentinean (Antarctic) research station San Martín in the year 2025. Approximate position in ITRF2014 frame at epoch 2025.5: X=927077.29m, Y=-2195043.62m, Z=-5896521.11m or in (GRS80) ellipsoidal coordinates: lat=68°07'46.850S, lon=067°06'11.597W, h=26.8m, orthometric height above EGM2008 geoid amounts 17.4m. GNSS receiver: TRIMBLE NetR9 (SN: 5226K50357), GNSS antenna: Zephyr Geodetic 2 w/Dome, PN: 57971-00 (SN: 30976593), Sampling interval: Originally 1 second, downsampled in postprocessing to 15 seconds. Each file covers a time period of one day. RINEX files have been converted from original TRIMBLE proprietary T02 files, applying software tools runpkr00 and teqc. RINEX format version is 2.11. Finally the data have been compressed applying Hatanaka tool (Hatanaka, Y. (2008), A Compression Format and Tools for GNSS Observation Data, Bulletin of the Geospatial Information Authority of Japan, 55, 21-30, available at https://www.gsi.go.jp/ENGLISH/Bulletin55.html) and gzip. IGS station log SMR5 (2023-03-01) https://download.pangaea.de/reference/132501/attachments/IGS_station_log_SMR5_20230301.zip -67.10324 -67.10324 -68.12965 -68.12965 -67.10324 -68.12965 2025-01-01T00:00:00 2025-12-31T23:59:59 26.0 26.0 not specified SMR5 San Martín Base http://igs.bkg.bund.de/station/showdetails/id/1000520 -68.12965 -67.10324 San Martin, Antarctica 26.0 Observation OBSE 365 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Krocker Ralf ralf.krocker@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/ralf-krocker.html Date/Time Binary Object Binary Trimble-NetR9 GPS Receiver, SN 5226K50357 https://hdl.handle.net/10013/epic.76b1ce87-952a-4937-bfb8-9cfd4068a96f Krocker Ralf ralf.krocker@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/ralf-krocker.html RINEX 2.11 format (http://hdl.handle.net/10013/epic.43875.d001) Binary CurationLevelB Basic curation https://wiki.pangaea.de/wiki/Curation_levels citable Galileo Glonass GNSS GPS San Martín SMR5 author30447 author39587 curlevel20 event2639020 geocode1599 geocode1600 geocode1601 geocode8128 inst32 license21 method11379 method12887 param146419 pi30447 ref132501 term29404 term43975 term48110 term52748 term52812 term60546 term60547 term72631 topotype1