PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-00:28:10
G02     201.7          30.8               10.4 +/-    1.21      17.9 +/-    1.21  0.080 / 0.090
G06     171.9          60.7                9.7 +/-    0.43      10.9 +/-    0.43  0.080 / 0.100
G17     33.2           51.2                7.8 +/-    1.24       9.7 +/-    1.24  0.060 / 0.090
G19     349.7          67.9                7.7 +/-    0.82       8.2 +/-    0.82  0.050 / 0.090
G24     300.9          37.0                7.9 +/-    1.43      12.0 +/-    1.43  0.040 / 0.030
G28     95.7           37.3                9.6 +/-    1.11      14.6 +/-    1.11  0.040 / 0.030