PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/17-14:58:10
G03     247.4          70.7               10.2 +/-    0.88      10.8 +/-    0.88  0.100 / 0.270
G09     299.9          13.5                5.2 +/-   14.91      13.3 +/-   14.91  0.110 / 0.270
G14     93.9           21.1                7.6 +/-    2.14      16.4 +/-    2.14  0.050 / 0.070
G16     133.8          55.0               10.6 +/-    0.59      12.6 +/-    0.59  0.050 / 0.060
G22     192.0          58.1               11.3 +/-    0.52      13.0 +/-    0.52  0.040 / 0.040
G23     318.1          48.4                8.4 +/-    0.85      10.7 +/-    0.85  0.040 / 0.040
G26     76.1           52.7                8.6 +/-    0.75      10.5 +/-    0.75  0.040 / 0.050
G31     50.0           22.2                5.8 +/-    3.27      12.1 +/-    3.27  0.040 / 0.050