The newly reprocessed solution, called the Multi-Year CORS Solution 2 (MYCS2), is aligned to the ITRF2014 frame. Instead, all the updates will be in the ITRF2014 frame.Īlthough NGS did not participate in the 2nd IGS reprocessing campaign, we have completed the reprocessing of the NCN and IGS Network stations. As part of this transition, products in the IGS08 frame are no longer updated. On Janu(GPS week 1934), the International GNSS Service ( IGS) released the new coordinates and corresponding antenna calibrations in the IGS realization of the International Terrestrial Reference Frame 2014 ( ITRF2014). Previous published coordinates and velocities of NCN stations can be found here
When a user downloads data, they should at the same time download the published NGS coordinate (position and velocity) file for that station. We strongly recommend that the the position/coordinates listed in the log file like that in the RINEX header files should be considered APPROXIMATE. Station log files contain all the historical equipment (receiver/antenna) used at that station, approximate location, owner and operating agency, etc. GNU gzip-compressed hourly Hatanaka-compression RINEX v2 GNU gzip-compressed daily Hatanaka-compression RINEX v2
NOAA-NCN bucket: YYYY/DDD/ssss/File-Nameįor more information about this service, visit NCN on the Registry of Open Data on AWS.Daily RINEX observation data can be found at:.Meteorological data files are available only for sites with independent meteorological sensors.Navigation data files are available only for sites that NGS submits to the IGS network.Daily data quality information generated by TEQC -qc are stored with daily data files.
For RINEX v2 data, NGS utilizes UNAVCO's TEQC software on incoming data for quality checking purposes.After 6 months, only gzip-compressed files of daily data in the Hatanaka-compression RINEX format (*.yyd.gz) are provided.After 30 days, daily files are decimated to 30s sampling rate.GNU gzip-compressed of data in RINEX format (*.yyo.gz).GNU gzip-compressed of data in the Hatanaka-compression RINEX format (*.yyd.gz).Daily files are kept permanently, available in 2 formats:.Most data are available within 1 hour (60 minutes) from when they were recordedĪt the remote site, and a few sites have a delay of 24 hours (1440 minutes).
The GNSS data collected at NCN stations are made available to the public by NGS in Receiver INdependent EXchange (RINEX) format. More details about NCN data and products are below.