PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-02:27:40
G10     261.5          34.7               12.8 +/-    1.16      20.4 +/-    1.16  0.040 / 0.050
G13     44.7           22.3                9.8 +/-    1.13      20.5 +/-    1.13  0.050 / 0.050
G15     67.2           53.7               11.4 +/-    0.43      13.7 +/-    0.43  0.150 / 0.230
G16     282.8          13.8                9.5 +/-    1.39      24.3 +/-    1.39  0.140 / 0.420
G20     283.2          54.6               13.5 +/-    1.07      16.1 +/-    1.07  0.130 / 0.300
G21     349.7          67.9               11.1 +/-    0.77      11.8 +/-    0.77  0.100 / 0.310
G24     123.8          11.2               11.5 +/-    4.76      31.2 +/-    4.76  0.080 / 0.110
G26     255.8          10.3               11.9 +/-    1.87      32.9 +/-    1.87  0.090 / 0.090
G27     320.7          14.7                7.6 +/-    1.33      19.0 +/-    1.33  0.040 / 0.090
G29     167.7          37.7               14.1 +/-    0.76      21.3 +/-    0.76  0.060 / 0.090