Phase Error Modeling and Its Impact on Precise Orbit Determination of GRACE Satellites

Table 1

Phase center offsets of GPS receiver antennas onboard GRACE satellites in the respective SBCS.

	𝑥 (m)	𝑦 (m)	𝑧 (m)
GRACE A	0.0004	−0.0004	−0.4140
GRACE B	0.0006	−0.0008	−0.4143