PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-07:28:10
G08     312.7          16.6                5.6 +/-    2.16      13.3 +/-    2.16  0.100 / 0.270
G10     329.8          59.6                4.2 +/-    0.44       4.8 +/-    0.44  0.120 / 0.230
G14     218.1          25.5                8.0 +/-    1.10      15.5 +/-    1.10  0.080 / 0.080
G15     46.7           11.3                3.2 +/-    2.00       8.7 +/-    2.00  0.070 / 0.080
G20     65.0           43.2                5.1 +/-    0.72       7.0 +/-    0.72  0.060 / 0.090
G21     133.3          58.3                7.3 +/-    0.56       8.5 +/-    0.56  0.050 / 0.090
G24     74.9           30.0                5.0 +/-    0.72       8.7 +/-    0.72  0.030 / 0.030
G27     275.6          37.6                7.7 +/-    1.02      11.6 +/-    1.02  0.030 / 0.030
G32     222.5          53.2                8.6 +/-    1.72      10.4 +/-    1.72  0.030 / 0.050