PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-01:42:30
G10     300.2          52.8                8.2 +/-    1.75      10.0 +/-    1.75  0.080 / 0.070
G14     211.1          11.6               -1.1 +/-   24.46      -2.9 +/-   24.46  0.070 / 0.070
G15     46.2           28.9                5.8 +/-    1.42      10.5 +/-    1.42  0.040 / 0.040
G20     312.6          58.0                7.4 +/-    0.79       8.6 +/-    0.79  0.030 / 0.030
G21     100.4          73.9                8.9 +/-    0.57       9.2 +/-    0.57  0.080 / 0.120
G24     94.0           27.0                7.7 +/-    1.69      14.3 +/-    1.69  0.090 / 0.100
G27     298.5          34.9                8.4 +/-    2.47      13.3 +/-    2.47  0.150 / 0.560
G32     211.1          35.7               11.5 +/-    1.42      18.0 +/-    1.42  0.190 / 0.570