PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-20:12:50
G01     246.7          33.0               10.1 +/-    1.83      16.7 +/-    1.83  0.030 / 0.050
G03     314.7          48.9               11.1 +/-    1.59      14.2 +/-    1.59  0.040 / 0.050
G11     235.4          10.6               10.3 +/-    2.28      28.4 +/-    2.28  0.080 / 0.110
G14     64.2           38.7               11.3 +/-    1.22      16.7 +/-    1.22  0.080 / 0.120
G16     162.9          20.9               13.5 +/-    2.26      29.1 +/-    2.26  0.030 / 0.050
G22     298.1          69.7               13.1 +/-    0.63      13.9 +/-    0.63  0.030 / 0.040
G23     289.8          21.9               10.7 +/-    1.59      22.4 +/-    1.59  0.080 / 0.240
G26     133.2          41.1               15.8 +/-    0.97      22.6 +/-    0.97  0.060 / 0.220
G31     40.1           55.0               10.2 +/-    0.85      12.2 +/-    0.85  0.120 / 0.160
G32     80.8           20.4               11.2 +/-    0.78      24.5 +/-    0.78  0.070 / 0.160