PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-19:12:40
G05     50.2           15.6                7.7 +/-    1.43      18.9 +/-    1.43  0.050 / 0.050
G10     239.6          16.6               11.5 +/-    2.06      27.5 +/-    2.06  0.070 / 0.060
G13     68.8           35.4               11.3 +/-    1.36      17.8 +/-    1.36  0.080 / 0.380
G15     124.3          55.1               10.5 +/-    0.64      12.4 +/-    0.64  0.080 / 0.370
G16     309.0          14.2                5.9 +/-    2.81      14.9 +/-    2.81  0.120 / 0.170
G20     253.1          40.8               11.1 +/-    2.29      15.9 +/-    2.29  0.080 / 0.150
G21     318.6          50.6                9.0 +/-    0.67      11.3 +/-    0.67  0.060 / 0.110
G26     282.0          19.7                7.6 +/-    0.84      17.0 +/-    0.84  0.070 / 0.120
G29     158.9          66.8               11.1 +/-    0.69      11.9 +/-    0.69  0.030 / 0.040