From: Analysis of propagation delays of compressional Pi 2 waves between geosynchronous altitude and low latitudes
Station/satellite
R(ΔT)
ΔT
ETS-VIII
0.97
-42
PPI
4
MUT
0.95
2
YAP
0.99
5
DAW
LMT
TWV
MLB
0.96
-1
HON
0.93
-4
FYM
0.88
-6