PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-20:12:50
G10     264.3          36.8               11.3 +/-    1.17      17.4 +/-    1.17  0.040 / 0.040
G13     43.1           20.0                7.9 +/-    1.68      17.4 +/-    1.68  0.040 / 0.040
G15     66.7           54.8                9.1 +/-    0.82      10.8 +/-    0.82  0.130 / 0.440
G16     281.1          13.0                8.1 +/-    1.60      21.2 +/-    1.60  0.110 / 0.360
G20     292.6          59.1                9.8 +/-    0.93      11.2 +/-    0.93  0.110 / 0.210
G21     357.7          70.3               10.6 +/-    0.79      11.2 +/-    0.79  0.110 / 0.150
G24     120.0          13.0               10.4 +/-    2.67      27.2 +/-    2.67  0.030 / 0.030
G27     320.3          15.7                9.3 +/-    1.76      22.8 +/-    1.76  0.040 / 0.040
G29     167.6          34.4               10.8 +/-    1.64      17.3 +/-    1.64  0.050 / 0.070