PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-07:58:00
G02     205.4          40.1                6.9 +/-    1.60       9.9 +/-    1.60  0.040 / 0.040
G06     152.0          74.2                9.2 +/-    1.05       9.6 +/-    1.05  0.040 / 0.040
G12     310.3          19.5                6.3 +/-    1.75      14.1 +/-    1.75  0.120 / 0.230
G17     43.3           42.6                6.8 +/-    0.22       9.5 +/-    0.22  0.130 / 0.220
G19     7.6            63.0                7.2 +/-    0.69       7.9 +/-    0.69  0.060 / 0.080
G24     285.7          43.4               10.2 +/-    1.05      14.1 +/-    1.05  0.050 / 0.070
G28     106.9          29.1                9.8 +/-    0.76      17.5 +/-    0.76  0.030 / 0.050