PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-20:27:50
G10     271.6          41.0               10.4 +/-    1.04      14.9 +/-    1.04  0.110 / 0.220
G13     40.1           14.9                8.2 +/-    2.20      20.6 +/-    2.20  0.120 / 0.170
G15     58.2           50.0                9.6 +/-    0.40      12.1 +/-    0.40  0.130 / 0.650
G16     274.8          10.8                6.3 +/-    1.98      17.2 +/-    1.98  0.120 / 0.590
G20     305.7          62.0                9.2 +/-    1.09      10.2 +/-    1.09  0.060 / 0.050
G21     15.3           74.2               11.1 +/-    0.54      11.5 +/-    0.54  0.050 / 0.040
G24     114.2          16.8               10.1 +/-    1.30      24.1 +/-    1.30  0.090 / 0.250
G27     317.3          21.0                8.2 +/-    4.89      17.6 +/-    4.89  0.100 / 0.340
G29     168.3          27.3               12.0 +/-    0.98      22.4 +/-    0.98  0.110 / 0.530
G32     204.7          13.6                9.7 +/-    2.65      25.0 +/-    2.65  0.120 / 0.370