PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-02:57:30
G10     273.3          42.7                8.6 +/-    1.51      11.9 +/-    1.51  0.120 / 0.170
G13     39.4           13.3                4.8 +/-    3.84      12.5 +/-    3.84  0.130 / 0.150
G15     53.6           43.6                5.4 +/-    0.63       7.4 +/-    0.63  0.060 / 0.070
G20     308.3          62.2                7.6 +/-    0.73       8.5 +/-    0.73  0.090 / 0.060
G21     18.5           74.6                7.8 +/-    0.67       8.0 +/-    0.67  0.050 / 0.030
G24     116.2          17.2                7.6 +/-    2.13      17.9 +/-    2.13  0.050 / 0.040
G27     316.7          21.9                5.9 +/-    1.70      12.4 +/-    1.70  0.200 / 0.310
G29     166.8          24.1                8.2 +/-    1.27      16.4 +/-    1.27  0.180 / 0.430
G32     205.6          11.5               -6.1 +/-   35.16     -16.5 +/-   35.16  0.040 / 0.040