PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-03:58:10
G10     253.3          28.7               14.1 +/-    2.15      25.3 +/-    2.15  0.160 / 0.480
G13     51.0           28.2                6.5 +/-    1.56      11.7 +/-    1.56  0.140 / 0.420
G15     80.9           57.0               10.1 +/-    0.42      11.8 +/-    0.42  0.040 / 0.050
G16     291.7          15.4               10.6 +/-    2.85      26.1 +/-    2.85  0.040 / 0.050
G20     288.4          62.9                9.5 +/-    0.61      10.6 +/-    0.61  0.060 / 0.150
G21     336.8          61.9               10.1 +/-    0.52      11.3 +/-    0.52  0.070 / 0.170
G26     263.5          14.4               11.6 +/-    1.22      29.4 +/-    1.22  0.020 / 0.040
G29     166.0          47.2               12.3 +/-    1.12      16.1 +/-    1.12  0.020 / 0.050