This CDDIS collection is composed of geodetic, Very Long Baseline Array (VLBI) level 2 observational and supporting data (including observations, standard deviations, station coordinates, and more) an

Global Change Master Directory (GCMD)60

The VSOP (the VLBI Space Observatory Programme) 5 GHz AGN (Active Galactic Nu...

活动星系核

VLBI甚长基线干涉测量

A significant fraction of the mission time of VSOP was to be dedicated to the VSOP Survey Programme of bright compact Active Galactic Nuclei (AGN) at 5 GHz, which was lead by...

B2FIND40

Very Long Baseline Interferometry (VLBI) DB data from NASA CDDIS

VLBI甚长基线干涉测量

天球参考架

Very Long Baseline Interferometry (VLBI) binary files provided by the International VLBI Service for Geodesy and Astrometry (IVS) in vgosDB format.

NASA Open Data Portal10