PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-10:57:40
G01     229.8          20.3                6.3 +/-    0.99      13.8 +/-    0.99  0.060 / 0.160
G03     296.1          65.4                3.9 +/-    1.26       4.2 +/-    1.26  0.080 / 0.180
G14     80.6           30.4                4.6 +/-    0.78       7.9 +/-    0.78  0.080 / 0.170
G16     147.9          41.7                8.0 +/-    0.66      11.3 +/-    0.66  0.090 / 0.180
G18     206.5          10.3                4.8 +/-   12.13      13.3 +/-   12.13  0.050 / 0.100
G22     218.3          73.1                6.5 +/-    1.02       6.8 +/-    1.02  0.070 / 0.100
G23     305.8          37.0                3.5 +/-    1.56       5.3 +/-    1.56  0.030 / 0.040
G26     102.0          52.7                6.6 +/-    0.73       8.1 +/-    0.73  0.030 / 0.040
G31     44.3           33.9                2.3 +/-    1.04       3.8 +/-    1.04  0.040 / 0.100