PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-18:27:50
G01     266.1          40.1                9.4 +/-    0.80      13.7 +/-    0.80  0.070 / 0.050
G03     316.4          34.6                8.1 +/-    1.38      12.9 +/-    1.38  0.060 / 0.060
G10     131.8          14.5               11.2 +/-    2.76      28.1 +/-    2.76  0.060 / 0.070
G11     249.4          18.9                9.4 +/-    2.14      21.3 +/-    2.14  0.090 / 0.090
G14     46.5           48.7                8.6 +/-    0.66      11.0 +/-    0.66  0.070 / 0.090
G22     313.2          55.8                8.3 +/-    1.34       9.8 +/-    1.34  0.060 / 0.080
G25     49.5           15.9                7.0 +/-    4.38      17.1 +/-    4.38  0.160 / 0.230
G26     145.7          28.0               11.4 +/-    1.82      20.8 +/-    1.82  0.080 / 0.150
G31     48.8           70.6                9.2 +/-    0.39       9.7 +/-    0.39  0.030 / 0.030
G32     67.5           30.0                9.0 +/-    1.45      15.8 +/-    1.45  0.040 / 0.030