PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-15:12:40
G01     91.1           31.6                8.8 +/-    0.40      14.9 +/-    0.40  0.030 / 0.030
G07     124.8          46.3                9.2 +/-    1.62      12.2 +/-    1.62  0.020 / 0.030
G11     69.1           39.9                8.5 +/-    0.30      12.4 +/-    0.30  0.100 / 0.110
G13     295.3          35.9                9.8 +/-    1.55      15.4 +/-    1.55  0.090 / 0.120
G17     214.0          52.4               12.3 +/-    1.42      15.0 +/-    1.42  0.040 / 0.080
G18     64.3           23.9                8.2 +/-    1.22      16.5 +/-    1.22  0.040 / 0.080
G19     214.5          23.8               13.6 +/-    2.82      27.4 +/-    2.82  0.030 / 0.060
G28     347.4          61.8                8.1 +/-    0.84       9.0 +/-    0.84  0.030 / 0.060
G30     99.7           77.3                9.8 +/-    0.84      10.0 +/-    0.84  0.040 / 0.060