PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-03:57:30
G10     249.7          25.8               14.2 +/-    1.21      27.3 +/-    1.21  0.100 / 0.260
G13     54.6           30.6                8.3 +/-    1.46      14.4 +/-    1.46  0.080 / 0.270
G15     89.1           57.8                9.7 +/-    1.15      11.2 +/-    1.15  0.030 / 0.040
G16     295.8          15.7               11.8 +/-    1.81      28.9 +/-    1.81  0.030 / 0.040
G20     281.8          61.8               10.3 +/-    1.00      11.5 +/-    1.00  0.090 / 0.180
G21     331.7          59.1                9.0 +/-    0.94      10.3 +/-    0.94  0.100 / 0.160
G26     267.4          16.1               14.6 +/-    1.27      35.4 +/-    1.27  0.040 / 0.040
G29     164.9          51.8                9.4 +/-    0.40      11.6 +/-    0.40  0.040 / 0.040