PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-19:43:00
G03     215.1          61.4                7.8 +/-    1.18       8.7 +/-    1.18  0.040 / 0.080
G07     253.1          11.7                9.7 +/-    2.43      26.1 +/-    2.43  0.040 / 0.080
G09     307.4          23.1                7.3 +/-    1.41      15.0 +/-    1.41  0.060 / 0.160
G14     105.6          10.4               10.0 +/-    3.49      27.6 +/-    3.49  0.060 / 0.130
G16     111.2          63.8                9.7 +/-    0.45      10.7 +/-    0.45  0.030 / 0.050
G22     189.3          46.3                9.4 +/-    1.50      12.4 +/-    1.50  0.030 / 0.040
G23     326.9          56.6                7.8 +/-    0.73       9.2 +/-    0.73  0.130 / 0.480
G26     58.3           46.8                5.6 +/-    0.52       7.4 +/-    0.52  0.130 / 0.450
G31     56.6           13.4                6.0 +/-    1.47      15.5 +/-    1.47  0.070 / 0.390