PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/17-17:43:00
G01     248.1          33.7               10.7 +/-    1.00      17.5 +/-    1.00  0.020 / 0.050
G03     315.0          49.7                9.3 +/-    1.56      11.8 +/-    1.56  0.030 / 0.050
G11     237.6          11.3                9.6 +/-    2.59      26.0 +/-    2.59  0.030 / 0.050
G14     62.2           40.3               10.8 +/-    0.64      15.6 +/-    0.64  0.040 / 0.040
G16     162.2          20.6               10.0 +/-   11.77      21.6 +/-   11.77  0.100 / 0.220
G22     298.9          70.1               12.5 +/-    0.88      13.3 +/-    0.88  0.080 / 0.230
G23     289.4          22.3                9.0 +/-    2.63      18.7 +/-    2.63  0.050 / 0.100
G26     132.9          40.5               12.0 +/-    1.34      17.2 +/-    1.34  0.050 / 0.120
G31     40.5           54.9                9.1 +/-    0.73      10.9 +/-    0.73  0.060 / 0.120
G32     80.1           20.5               10.3 +/-    1.17      22.4 +/-    1.17  0.070 / 0.100