GNSS

GNSS time

• GPS Calender
• Current time
• Date Converter

Data analysis

• G-Nut Software s.r.o. - GNSS and data quality
• GPS Data Analysis
• gfzrnx

Co-ordinate conversion

• x,y,z -> llh
• x,y,z, <-> llh

Products

MGEX Broadcast Eph

curl -O ftp://gssc.esa.int/gnss/data/daily/2021/brdc/brdc3430.21n.gz

FTP server : ftp://gssc.esa.int/gnss/data/daily/2021/brdc/

Linux command : curl -O ftp://gssc.esa.int/gnss/data/daily/2021/brdc/BRDC00IGS_R_20213450000_01D_MN.rnx.gz

Naming convention : https://www.ordnancesurvey.co.uk/documents/resources/rinex-file-naming.pdf

Others

• https://cddis.gsfc.nasa.gov/archive/gnss/products/ / https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/broadcast_ephemeris_data.html
• ftp://igs.ensg.ign.fr/pub/igs/products/
• ftp://gssc.esa.int/gnss/products/
• ftp://lox.ucsd.edu/pub/products/