PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-14:57:50
G01     110.6          23.6               13.0 +/-    1.96      26.2 +/-    1.96  0.030 / 0.030
G07     100.8          61.0               12.7 +/-    1.15      14.3 +/-    1.15  0.030 / 0.030
G08     42.3           23.4               10.2 +/-    1.65      20.8 +/-    1.65  0.090 / 0.190
G09     174.7          15.8               13.2 +/-    3.79      32.2 +/-    3.79  0.090 / 0.180
G11     93.6           42.4               14.4 +/-    0.36      20.1 +/-    0.36  0.040 / 0.090
G13     312.2          26.4               10.7 +/-    0.92      20.2 +/-    0.92  0.050 / 0.090
G17     204.6          33.6               12.5 +/-    1.17      20.4 +/-    1.17  0.030 / 0.050
G18     84.1           23.6               12.3 +/-    0.74      24.8 +/-    0.74  0.040 / 0.050
G28     310.6          60.2               11.5 +/-    1.08      13.0 +/-    1.08  0.040 / 0.060
G30     7.4            75.7               13.4 +/-    0.34      13.8 +/-    0.34  0.040 / 0.060