PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-21:13:00
G10     270.7          41.6               11.6 +/-    1.31      16.5 +/-    1.31  0.050 / 0.040
G13     40.2           14.9                7.3 +/-    3.79      18.3 +/-    3.79  0.040 / 0.040
G15     56.7           47.4               10.6 +/-    1.64      13.8 +/-    1.64  0.230 / 0.640
G16     276.1          11.6                9.6 +/-   14.33      25.8 +/-   14.33  0.360 / 0.590
G20     304.9          61.8               10.7 +/-    0.67      11.9 +/-    0.67  0.300 / 0.260
G21     8.2            73.0               11.7 +/-    0.87      12.2 +/-    0.87  0.260 / 0.260
G24     119.5          15.8               13.9 +/-    1.89      33.8 +/-    1.89  0.130 / 0.320
G27     317.6          20.7               10.9 +/-    2.75      23.5 +/-    2.75  0.140 / 0.290
G29     167.5          28.6               14.1 +/-    1.15      25.4 +/-    1.15  0.070 / 0.130
G32     204.4          11.7                4.2 +/-   42.70      11.2 +/-   42.70  0.080 / 0.130