PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-16:12:40
G02     201.8          23.2                9.2 +/-    1.78      18.7 +/-    1.78  0.170 / 0.290
G06     165.1          60.6               11.4 +/-    0.82      12.9 +/-    0.82  0.240 / 0.330
G12     303.5          12.0                8.6 +/-    2.89      22.9 +/-    2.89  0.130 / 0.340
G13     223.6          10.0               12.1 +/-    4.25      33.9 +/-    4.25  0.110 / 0.290
G17     27.8           55.6               10.0 +/-    0.53      11.8 +/-    0.53  0.070 / 0.180
G19     327.0          69.8                9.5 +/-    0.58      10.0 +/-    0.58  0.070 / 0.180
G24     305.6          34.0               10.6 +/-    1.30      17.2 +/-    1.30  0.040 / 0.110
G28     92.9           37.1               10.0 +/-    0.52      15.3 +/-    0.52  0.050 / 0.120
G30     158.0          11.4               10.7 +/-    1.27      28.9 +/-    1.27  0.080 / 0.110