PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/04-20:58:00
G10     267.3          39.7               15.3 +/-    1.57      22.3 +/-    1.57  0.050 / 0.040
G13     41.5           17.3               10.9 +/-    2.41      25.7 +/-    2.41  0.070 / 0.040
G15     59.9           49.8               14.0 +/-    0.81      17.8 +/-    0.81  0.100 / 0.350
G16     278.9          12.7               13.0 +/-    1.76      34.1 +/-    1.76  0.210 / 0.270
G20     298.8          60.6               14.2 +/-    0.82      16.0 +/-    0.82  0.030 / 0.040
G21     0.6            71.1               15.9 +/-    0.59      16.7 +/-    0.59  0.030 / 0.050
G24     122.0          14.0               19.8 +/-    3.10      50.5 +/-    3.10  0.180 / 0.560
G27     319.0          18.4               12.2 +/-    1.97      28.0 +/-    1.97  0.200 / 0.500
G29     167.2          31.9               16.1 +/-    1.04      27.1 +/-    1.04  0.070 / 0.090