PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-18:57:40
G01     235.2          25.0               11.1 +/-    0.80      21.6 +/-    0.80  0.050 / 0.060
G03     305.1          61.6                9.1 +/-    1.58      10.2 +/-    1.58  0.060 / 0.070
G14     75.8           32.0                9.6 +/-    0.95      16.1 +/-    0.95  0.030 / 0.030
G16     155.9          33.3               12.6 +/-    1.40      20.6 +/-    1.40  0.030 / 0.040
G22     253.7          76.1                8.3 +/-    0.70       8.5 +/-    0.70  0.080 / 0.150
G23     299.4          30.4                9.2 +/-    1.17      15.9 +/-    1.17  0.100 / 0.130
G26     116.6          49.9               10.8 +/-    0.98      13.7 +/-    0.98  0.070 / 0.120
G31     41.7           42.1                7.9 +/-    0.56      11.1 +/-    0.56  0.080 / 0.130
G32     90.9           12.5               10.5 +/-    0.91      27.8 +/-    0.91  0.090 / 0.130