PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-12:57:40
G01     222.8          13.4                4.7 +/-    3.86      12.3 +/-    3.86  0.120 / 0.170
G03     267.5          70.6                6.7 +/-    0.92       7.1 +/-    0.92  0.140 / 0.210
G09     297.1          10.7              -13.4 +/-   14.74     -36.9 +/-   14.74  0.030 / 0.040
G14     89.3           25.0                6.4 +/-    2.55      12.4 +/-    2.55  0.030 / 0.040
G16     139.0          50.9                8.0 +/-    0.73       9.9 +/-    0.73  0.200 / 0.660
G22     196.8          63.4                6.3 +/-    1.36       6.9 +/-    1.36  0.140 / 0.750
G23     314.4          45.1                6.1 +/-    0.80       8.2 +/-    0.80  0.040 / 0.030
G26     84.1           53.5                6.1 +/-    1.11       7.4 +/-    1.11  0.040 / 0.030
G31     48.0           25.7                5.8 +/-    2.13      11.1 +/-    2.13  0.060 / 0.050