work orientation

Wuhan Combination Center (WCC) is one of the two major satellite product combination centers in the world, together with JPL, and is mainly responsible for satellite product combination, testing and publicity, including:

(1) Product combination of orbits, clock, bias etc;

(2) Product combination covering ultra-rapid, rapid and final products;

(3) Product combination covering OPS and MGEX products;

(4) Product quality validation and PPP/PPP-AR test for the combined products;

(5) Responsible for the promotion of combined products.

However, different from IGS Analysis Center Coordinator, WCC aims at innovation and practice, and will absorb more types of products, develop more performance, and find more possibilities in satellite product development. Compared with ACC, there are mainly the following differences in the work content:

(1) The combination will include more potential AC products;

(2) Pioneering multi-GNSS product combination;

(3) Adding MGEX products to the daily combination;

(4) bias combination with the final combined product supporting user PPP-AR;

(5) The combined products will be aligned to eliminate day boundary discontinuities.

WCC will strive to do better than ACC in precision satellite product synthesis, and conduct more in-depth exploration and research around the BDS satellite, phase bias products, and day-boundary discontinuities.

Products download address

ftps://bdspride.com

Simple script example:curl --ftp-ssl -k -O ftps://bdspride.com/wcc/${week}/${filename}

week=2369

filename=WCC0OPSFIN_20251590000_01D_01D_OSB.BIA.gz

Reference

[1] Chen G, Guo J, Geng T, et al. Multi-GNSS orbit combination at Wuhan University: strategy and preliminary products[J]. Journal of Geodesy, 2023, 97(5): 41.

[2] Geng J, Yan Z, Wen Q, et al. Integrated satellite clock and code/phase bias combination in the third IGS reprocessing campaign[J]. GPS solutions, 2024, 28(3): 150.