PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-00:12:30
G10     251.3          27.3               14.4 +/-    1.25      26.6 +/-    1.25  0.180 / 0.470
G13     52.8           29.4                8.9 +/-    1.22      15.8 +/-    1.22  0.180 / 0.570
G15     89.0           58.7               10.9 +/-    0.76      12.6 +/-    0.76  0.110 / 0.130
G16     293.4          15.9                8.5 +/-    2.36      20.6 +/-    2.36  0.100 / 0.140
G20     259.8          33.4                9.1 +/-    0.99      14.9 +/-    0.99  0.030 / 0.050
G21     333.4          60.1               10.6 +/-    0.57      12.0 +/-    0.57  0.040 / 0.060
G26     265.5          15.4               12.3 +/-    2.92      30.2 +/-    2.92  0.040 / 0.060
G29     165.5          50.2               11.6 +/-    0.75      14.7 +/-    0.75  0.050 / 0.060