PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-21:12:30
G02     346.9          77.7               10.3 +/-    0.65      10.5 +/-    0.65  0.090 / 0.180
G05     163.0          35.8               16.1 +/-    1.77      25.2 +/-    1.77  0.090 / 0.200
G06     42.5           37.0                9.5 +/-    0.62      14.5 +/-    0.62  0.040 / 0.070
G12     305.4          75.7               10.0 +/-    0.66      10.2 +/-    0.66  0.080 / 0.080
G17     87.4           11.1               11.3 +/-    1.26      30.9 +/-    1.26  0.040 / 0.040
G19     75.5           28.2               10.1 +/-    0.81      18.4 +/-    0.81  0.020 / 0.030
G24     226.0          21.1               14.9 +/-    1.51      31.9 +/-    1.51  0.080 / 0.120
G25     316.9          30.6                9.6 +/-    0.71      16.7 +/-    0.71  0.080 / 0.130