PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-17:58:00
G10     296.1          52.3               13.3 +/-    1.83      16.4 +/-    1.83  0.060 / 0.080
G15     46.2           28.1               12.7 +/-    1.23      23.2 +/-    1.23  0.050 / 0.090
G20     353.2          65.3               13.7 +/-    0.72      14.9 +/-    0.72  0.110 / 0.120
G21     87.7           75.3               15.8 +/-    0.65      16.3 +/-    0.65  0.070 / 0.120
G24     101.9          25.8               15.8 +/-    0.94      30.3 +/-    0.94  0.040 / 0.040
G27     303.1          33.5               12.3 +/-    1.52      20.1 +/-    1.52  0.040 / 0.030
G29     168.1          10.4               17.3 +/-    3.30      47.7 +/-    3.30  0.180 / 0.330
G32     208.9          31.0               15.4 +/-    1.66      26.5 +/-    1.66  0.120 / 0.380