PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/30-01:57:30
G03     231.8          66.0                3.3 +/-    0.94       3.6 +/-    0.94  0.050 / 0.060
G07     250.6          10.8               -3.1 +/-   18.80      -8.5 +/-   18.80  0.050 / 0.060
G09     307.2          25.5                2.1 +/-    1.34       4.0 +/-    1.34  0.140 / 0.370
G14     102.7          11.8                3.5 +/-    3.24       9.3 +/-    3.24  0.070 / 0.360
G16     117.1          61.3                7.6 +/-    1.26       8.6 +/-    1.26  0.120 / 0.510
G22     194.5          52.0                7.0 +/-    0.96       8.6 +/-    0.96  0.130 / 0.570
G23     320.8          50.6                3.3 +/-    1.00       4.1 +/-    1.00  0.050 / 0.060
G26     64.0           49.9                4.3 +/-    0.72       5.5 +/-    0.72  0.050 / 0.060
G31     54.0           17.7                2.2 +/-    1.28       5.2 +/-    1.28  0.040 / 0.040