PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-16:42:50
G02     215.1          55.6               10.3 +/-    0.80      12.2 +/-    0.80  0.110 / 0.110
G06     59.9           73.8                8.3 +/-    0.43       8.6 +/-    0.43  0.140 / 0.090
G12     319.3          38.7                6.3 +/-    0.97       9.4 +/-    0.97  0.070 / 0.080
G17     56.5           32.5                6.7 +/-    2.56      11.1 +/-    2.56  0.060 / 0.060
G19     32.8           53.0                8.4 +/-    1.11      10.2 +/-    1.11  0.050 / 0.030
G24     265.8          42.4               10.5 +/-    2.14      14.7 +/-    2.14  0.040 / 0.030
G28     121.2          15.3                7.5 +/-    1.33      18.4 +/-    1.33  0.050 / 0.040