PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-22:58:00
G01     69.0           32.7               10.9 +/-    0.77      18.0 +/-    0.77  0.040 / 0.060
G07     138.4          30.0               12.0 +/-    0.91      21.0 +/-    0.91  0.040 / 0.140
G11     54.0           31.5                9.2 +/-    0.66      15.6 +/-    0.66  0.030 / 0.030
G13     273.0          37.1               13.3 +/-    1.32      20.3 +/-    1.32  0.030 / 0.040
G15     300.8          15.8                9.3 +/-    1.83      22.7 +/-    1.83  0.040 / 0.080
G17     234.7          66.6               13.2 +/-    0.62      14.2 +/-    0.62  0.040 / 0.080
G18     48.3           17.8                9.1 +/-    1.02      21.2 +/-    1.02  0.030 / 0.060
G19     225.5          43.1               13.6 +/-    0.82      18.8 +/-    0.82  0.030 / 0.050
G28     23.3           58.7               10.1 +/-    0.41      11.6 +/-    0.41  0.060 / 0.120
G30     136.9          57.5               11.0 +/-    0.84      12.8 +/-    0.84  0.060 / 0.130