PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-02:13:00
G10     265.9          37.5               14.1 +/-    1.28      21.3 +/-    1.28  0.110 / 0.150
G13     42.4           19.1                8.9 +/-    1.06      20.0 +/-    1.06  0.130 / 0.180
G15     61.7           51.1               10.5 +/-    0.73      13.1 +/-    0.73  0.120 / 0.320
G16     278.7          12.6               10.9 +/-    1.39      28.7 +/-    1.39  0.140 / 0.440
G20     286.0          54.1               11.6 +/-    0.67      13.9 +/-    0.67  0.070 / 0.070
G21     358.1          70.8               11.6 +/-    0.65      12.2 +/-    0.65  0.080 / 0.080
G24     120.3          13.7               11.9 +/-    1.24      30.5 +/-    1.24  0.040 / 0.040
G27     319.1          18.1                8.7 +/-    1.39      20.0 +/-    1.39  0.040 / 0.050
G29     168.3          33.2               13.6 +/-    1.40      22.4 +/-    1.40  0.170 / 0.340