PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-05:28:10
G01     65.0           31.9                5.1 +/-    0.62       8.6 +/-    0.62  0.060 / 0.130
G07     139.9          24.3                8.1 +/-    1.39      16.0 +/-    1.39  0.070 / 0.120
G11     49.5           25.8                5.7 +/-    0.92      10.8 +/-    0.92  0.050 / 0.080
G13     267.5          37.0                7.8 +/-    0.98      11.9 +/-    0.98  0.050 / 0.070
G15     299.5          15.3                0.6 +/-    1.29       1.5 +/-    1.29  0.080 / 0.120
G17     247.9          76.2                9.2 +/-    0.67       9.5 +/-    0.67  0.080 / 0.120
G18     43.0           13.2                2.7 +/-    0.92       6.9 +/-    0.92  0.090 / 0.190
G19     227.6          44.3                8.8 +/-    2.29      12.0 +/-    2.29  0.090 / 0.220
G28     24.4           58.9                7.0 +/-    0.70       8.0 +/-    0.70  0.040 / 0.040
G30     140.6          58.5                9.1 +/-    0.44      10.5 +/-    0.44  0.060 / 0.050