PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-18:12:50
G01     249.4          34.4               10.3 +/-    1.32      16.6 +/-    1.32  0.040 / 0.090
G03     315.4          48.0                7.2 +/-    1.46       9.4 +/-    1.46  0.050 / 0.100
G11     238.3          11.9                9.9 +/-    3.42      26.4 +/-    3.42  0.040 / 0.040
G14     61.1           40.9                9.0 +/-    0.55      12.9 +/-    0.55  0.040 / 0.050
G16     163.0          19.3               -2.4 +/-   20.91      -5.4 +/-   20.91  0.030 / 0.040
G22     301.4          68.7                8.3 +/-    0.71       8.8 +/-    0.71  0.020 / 0.050
G23     288.4          21.2                9.0 +/-    2.39      19.3 +/-    2.39  0.080 / 0.120
G26     134.4          39.5               12.4 +/-    1.02      18.1 +/-    1.02  0.080 / 0.140
G31     40.6           56.4                8.1 +/-    0.49       9.5 +/-    0.49  0.040 / 0.050
G32     79.1           21.4                8.2 +/-    1.10      17.5 +/-    1.10  0.040 / 0.060