PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-02:12:40
G10     265.9          37.5               13.2 +/-    1.26      20.1 +/-    1.26  0.170 / 0.400
G13     42.4           19.1                9.0 +/-    3.18      20.3 +/-    3.18  0.160 / 0.370
G15     61.7           51.1               10.5 +/-    0.57      13.0 +/-    0.57  0.170 / 0.160
G16     278.7          12.6               10.3 +/-    1.78      27.3 +/-    1.78  0.160 / 0.150
G20     286.0          54.1               12.1 +/-    0.77      14.6 +/-    0.77  0.050 / 0.040
G21     358.1          70.8               11.1 +/-    0.59      11.7 +/-    0.59  0.070 / 0.040
G24     120.3          13.7               10.5 +/-    1.80      27.0 +/-    1.80  0.040 / 0.090
G27     319.1          18.1                9.7 +/-    2.02      22.3 +/-    2.02  0.050 / 0.090
G29     168.3          33.2               12.0 +/-    1.30      19.7 +/-    1.30  0.180 / 0.230