PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-00:57:40
G10     265.3          37.2               13.1 +/-    1.41      20.0 +/-    1.41  0.110 / 0.150
G13     42.7           19.5                7.3 +/-    0.80      16.3 +/-    0.80  0.110 / 0.150
G15     63.0           52.1                7.9 +/-    0.45       9.7 +/-    0.45  0.110 / 0.310
G16     279.1          12.8                9.7 +/-    0.84      25.4 +/-    0.84  0.140 / 0.360
G20     276.0          44.6                8.9 +/-    0.85      12.1 +/-    0.85  0.090 / 0.090
G21     356.4          70.4                9.6 +/-    0.78      10.1 +/-    0.78  0.080 / 0.080
G24     120.5          13.4               11.5 +/-    1.98      29.7 +/-    1.98  0.150 / 0.390
G27     319.4          17.5                8.7 +/-    1.29      20.4 +/-    1.29  0.190 / 0.350
G29     168.2          33.9               11.0 +/-    2.47      17.8 +/-    2.47  0.050 / 0.040