PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-11:57:50
G01     223.6          14.2                5.9 +/-    3.52      15.1 +/-    3.52  0.110 / 0.210
G03     273.1          70.1                7.5 +/-    0.72       8.0 +/-    0.72  0.100 / 0.190
G09     296.5          10.2              -15.0 +/-   19.65     -41.7 +/-   19.65  0.300 / 0.440
G14     88.3           25.5                6.8 +/-    0.97      13.1 +/-    0.97  0.210 / 0.380
G16     140.1          49.9                8.8 +/-    1.08      11.1 +/-    1.08  0.040 / 0.040
G22     200.0          65.2                7.3 +/-    0.46       8.0 +/-    0.46  0.040 / 0.040
G23     312.9          43.5                5.9 +/-    0.52       8.2 +/-    0.52  0.040 / 0.050
G26     86.2           53.6                7.0 +/-    0.54       8.4 +/-    0.54  0.040 / 0.070
G31     47.5           26.7                5.2 +/-    0.76       9.8 +/-    0.76  0.060 / 0.080