PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-01:28:10
G02     205.8          45.7               10.5 +/-    0.67      14.0 +/-    0.67  0.090 / 0.160
G06     138.8          77.3                9.1 +/-    0.49       9.3 +/-    0.49  0.190 / 0.220
G12     312.1          21.7                5.4 +/-    1.42      11.5 +/-    1.42  0.040 / 0.040
G17     41.2           45.8                6.3 +/-    1.39       8.4 +/-    1.39  0.050 / 0.040
G19     17.5           59.8                6.6 +/-    0.71       7.5 +/-    0.71  0.090 / 0.110
G24     287.5          41.2                6.4 +/-    5.17       9.2 +/-    5.17  0.120 / 0.110
G28     111.0          24.6                7.6 +/-    0.79      14.9 +/-    0.79  0.090 / 0.170