PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-14:58:00
G01     44.9           21.1                8.4 +/-    1.82      18.1 +/-    1.82  0.050 / 0.090
G06     174.6          33.9               11.2 +/-    1.69      18.2 +/-    1.69  0.060 / 0.080
G13     243.2          26.3               12.8 +/-    1.43      24.4 +/-    1.43  0.080 / 0.170
G15     280.2          13.6                9.8 +/-    0.88      25.2 +/-    0.88  0.080 / 0.120
G17     348.2          74.8               11.5 +/-    0.43      11.9 +/-    0.43  0.040 / 0.070
G19     256.3          62.0               10.3 +/-    0.96      11.4 +/-    0.96  0.040 / 0.080
G24     317.8          15.2                7.0 +/-    1.29      17.3 +/-    1.29  0.180 / 0.430
G28     62.4           50.0               10.6 +/-    0.86      13.4 +/-    0.86  0.170 / 0.460
G30     153.0          35.5               10.4 +/-    1.14      16.4 +/-    1.14  0.080 / 0.210