PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-03:43:10
G02     59.3           32.3                6.1 +/-    1.03      10.2 +/-    1.03  0.060 / 0.090
G05     58.7           60.6                7.4 +/-    0.64       8.3 +/-    0.64  0.050 / 0.100
G12     185.3          34.2               10.0 +/-    1.33      16.1 +/-    1.33  0.030 / 0.050
G13     129.5          14.3                6.7 +/-    4.09      16.9 +/-    4.09  0.030 / 0.050
G15     164.1          11.4                2.9 +/-   19.38       7.8 +/-   19.38  0.040 / 0.050
G20     216.4          25.0                8.3 +/-    4.45      16.2 +/-    4.45  0.030 / 0.070
G21     270.2          16.5               10.8 +/-    1.69      25.9 +/-    1.69  0.100 / 0.200
G25     240.3          52.8                9.0 +/-    0.86      11.0 +/-    0.86  0.080 / 0.180
G29     327.2          52.9                7.0 +/-    0.92       8.6 +/-    0.92  0.060 / 0.080