PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-17:28:00
G10     248.4          25.3                9.8 +/-    2.16      19.0 +/-    2.16  0.100 / 0.360
G13     55.8           30.9                7.6 +/-    1.83      13.0 +/-    1.83  0.110 / 0.310
G15     97.6           59.2                8.7 +/-    0.46      10.0 +/-    0.46  0.040 / 0.040
G16     298.5          15.4                6.6 +/-    1.52      16.2 +/-    1.52  0.040 / 0.040
G20     266.4          49.1                9.9 +/-    4.76      12.6 +/-    4.76  0.060 / 0.150
G21     332.5          59.2                7.3 +/-    0.64       8.3 +/-    0.64  0.050 / 0.120
G26     271.3          16.4                8.5 +/-    1.56      20.5 +/-    1.56  0.030 / 0.030
G29     163.4          52.7                9.8 +/-    0.68      11.9 +/-    0.68  0.030 / 0.040