PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-22:27:40
G10     271.4          41.9                9.3 +/-    1.36      13.1 +/-    1.36  0.170 / 0.760
G13     40.0           14.5                6.6 +/-    1.44      16.5 +/-    1.44  0.140 / 0.680
G15     55.8           46.3                8.1 +/-    1.02      10.7 +/-    1.02  0.110 / 0.230
G16     275.8          11.4                6.5 +/-    8.90      17.6 +/-    8.90  0.130 / 0.180
G20     305.2          61.7                9.1 +/-    1.03      10.2 +/-    1.03  0.050 / 0.060
G21     9.9            73.3                9.7 +/-    0.86      10.1 +/-    0.86  0.060 / 0.060
G24     118.7          16.2                9.9 +/-    1.80      24.0 +/-    1.80  0.060 / 0.050
G27     317.4          21.1                7.2 +/-    3.93      15.5 +/-    3.93  0.050 / 0.040
G29     167.4          27.7               11.4 +/-    1.32      20.9 +/-    1.32  0.180 / 0.340
G32     204.6          11.8                8.1 +/-   33.98      21.6 +/-   33.98  0.100 / 0.310