Since I was already on the NGS page :
The Facet - SFEFACET
Actual L1 Phase Center
2.46 N -0.93 E 71.84 UP
Actual L2 Phase Center
2.21 N 5.44 E 67.25 UP
The Tri-Band - SFESPK6618H
Actual L1 Phase Center
0.47 N -1.26 E 48.02 UP
Actual L2 Phase Center
2.73 N -1.87 E 35.91 UP
Actual L5 Phase Center
3.16 N -2.02 E 36.91 UP
But please verify the numbers before you use them 