PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-18:42:50
G01     262.0          39.2               11.0 +/-    0.88      16.2 +/-    0.88  0.040 / 0.050
G03     316.6          37.4               10.3 +/-    0.54      15.6 +/-    0.54  0.040 / 0.040
G10     133.4          11.9               11.4 +/-    1.51      30.6 +/-    1.51  0.080 / 0.290
G11     246.6          17.4               10.5 +/-    1.27      24.7 +/-    1.27  0.080 / 0.270
G14     50.1           46.8                8.2 +/-    0.40      10.8 +/-    0.40  0.020 / 0.030
G22     311.9          58.6               10.2 +/-    1.04      11.8 +/-    1.04  0.030 / 0.040
G25     46.9           14.7                6.3 +/-    0.99      15.9 +/-    0.99  0.090 / 0.270
G26     143.6          30.6               13.9 +/-    1.06      24.1 +/-    1.06  0.080 / 0.220
G31     45.3           67.6                9.6 +/-    0.19      10.3 +/-    0.19  0.060 / 0.090
G32     70.1           28.1                8.6 +/-    0.74      15.6 +/-    0.74  0.070 / 0.080