PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-12:27:50
G02     204.0          29.6                6.3 +/-    1.51      11.1 +/-    1.51  0.090 / 0.090
G03     59.9           9.4                -9.3 +/-   26.40     -26.1 +/-   26.40  0.060 / 0.070
G06     159.6          68.0                6.8 +/-    0.38       7.3 +/-    0.38  0.100 / 0.230
G12     307.3          16.3                1.8 +/-    2.17       4.4 +/-    2.17  0.130 / 0.220
G17     36.1           48.9                4.3 +/-    1.10       5.4 +/-    1.10  0.260 / 0.260
G19     345.7          67.5                5.1 +/-    0.48       5.5 +/-    0.48  0.190 / 0.250
G24     297.1          39.4                4.4 +/-    5.94       6.5 +/-    5.94  0.040 / 0.030
G28     100.3          33.2                5.5 +/-    0.92       9.0 +/-    0.92  0.040 / 0.020