PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-19:27:30
G10     275.9          44.3               13.8 +/-    1.24      18.7 +/-    1.24  0.050 / 0.030
G13     38.7           11.5                8.6 +/-   11.37      23.1 +/-   11.37  0.050 / 0.040
G15     52.5           42.6               11.4 +/-    0.81      16.0 +/-    0.81  0.520 / 0.540
G20     315.7          63.6               13.4 +/-    0.78      14.7 +/-    0.78  0.370 / 0.420
G21     22.5           75.3               13.6 +/-    0.66      14.1 +/-    0.66  0.060 / 0.070
G24     116.1          18.3               15.3 +/-    1.48      35.2 +/-    1.48  0.040 / 0.050
G27     315.2          24.1               11.7 +/-    1.89      23.2 +/-    1.89  0.090 / 0.140
G29     168.0          24.6               15.9 +/-    4.50      31.3 +/-    4.50  0.110 / 0.190
G32     204.9          16.2               22.8 +/-    3.23      55.1 +/-    3.23  0.140 / 0.200