PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-00:13:10
G10     258.4          32.7               12.0 +/-    1.95      19.8 +/-    1.95  0.430 / 0.370
G13     46.7           24.4               10.3 +/-    3.48      20.3 +/-    3.48  0.400 / 0.290
G15     73.9           56.4               10.4 +/-    0.72      12.2 +/-    0.72  0.060 / 0.040
G16     285.7          14.7                8.3 +/-    2.52      20.7 +/-    2.52  0.050 / 0.040
G20     266.2          36.5               11.2 +/-    2.52      17.3 +/-    2.52  0.140 / 0.270
G21     344.0          65.6               10.4 +/-    0.36      11.3 +/-    0.36  0.120 / 0.230
G26     258.5          11.9               14.2 +/-    3.49      38.1 +/-    3.49  0.110 / 0.170
G27     321.7          11.9               -5.5 +/-   28.38     -14.8 +/-   28.38  0.090 / 0.150
G29     167.2          41.5               11.4 +/-    0.71      16.2 +/-    0.71  0.040 / 0.030