PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-04:12:50
G10     264.6          36.6                9.7 +/-    1.33      15.0 +/-    1.33  0.160 / 0.360
G13     43.1           20.1                5.8 +/-    1.59      12.6 +/-    1.59  0.120 / 0.340
G15     62.2           50.9                9.3 +/-    0.67      11.6 +/-    0.67  0.050 / 0.040
G16     280.2          12.9                8.8 +/-    2.40      23.0 +/-    2.40  0.050 / 0.040
G20     312.4          66.0                8.1 +/-    0.81       8.7 +/-    0.81  0.080 / 0.230
G21     356.0          70.1                9.1 +/-    0.60       9.7 +/-    0.60  0.080 / 0.240
G24     121.7          12.9                7.2 +/-    1.21      18.8 +/-    1.21  0.110 / 0.140
G27     319.5          17.3                7.3 +/-    1.44      17.1 +/-    1.44  0.100 / 0.140
G29     168.1          34.3                9.9 +/-    1.39      15.9 +/-    1.39  0.070 / 0.080