In IGS website, only GPS precise orbit is available. I want to perform PPP analysis with multi-GNSS combination which requires precise orbit of other constellations along with GPS orbits. How can I get precise orbit for GALILEO, GLONASS, BDS etc?
Hi Shanker,
You can get those from individual Analysis Centers (ACs) at CDDIS, while their GPS products are generally then combined into a single IGS product.
Attached here an example (multi-GNSS orbits & clocks):
Folder [e.g. GPS Week 2259]
> https://cddis.nasa.gov/archive/gnss/products/2259/
File [e.g. CODE MGEX Final product for DOY 115 in 2023]
> COD0MGXFIN_20231150000_01D_05M_ORB.SP3.gz
ps. MGEX = Multi-GNSS Experiment (https://igs.org/mgex/)
Regards,
Lotfi.
On NASA Archive of Space Geodesy data. An examples of the link: https://cddis.nasa.gov/archive/gnss/products/2248/
You will need to create a user account to access these products.
The product you need is described here:
https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/gnss_igsorb.html
You may also download PPP-AR products listed at: https://igs.org/wg/ppp-ar/#products.
Best regards
Damian Kiliszek
You may also obtain GNSS products from PPP-Wizzard Project as follows:
1-Real-time products
http://www.ppp-wizard.net/products/REAL_TIME/
2-Post-processed products
http://www.ppp-wizard.net/products/POST_PROCESSED/
Certainly! You can download the precise ephemerides for various GNSS systems, including GALILEO, GLONASS, BDS, and others, from the International GNSS Service (IGS) website. Here's how:
Alternatively, you can also use the IGS ftp server to download the ephemerides data. Here's how:
ftp -s:_.csv copy
Replace with the name of the GNSS system you want to download ephemerides for (e.g., "GALILEO", "GLONASS", "BDS", etc.). Replace with the time period for which you want to download the ephemerides (e.g., "CURRENT_WEEK", "LAST_WEEK", "LAST_MONTH", etc.). Replace with the IGS ftp server address, which is `
- Badges
- Science topic
- Similar topics
- Mathematics