PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-21:27:40
G10     275.1          42.8                8.8 +/-    0.70      12.3 +/-    0.70  0.090 / 0.150
G13     39.1           12.5                6.8 +/-    1.25      17.8 +/-    1.25  0.110 / 0.140
G15     55.8           48.3                9.3 +/-    0.40      11.9 +/-    0.40  0.110 / 0.280
G20     312.1          63.0                8.6 +/-    1.24       9.5 +/-    1.24  0.110 / 0.290
G21     24.4           75.6                9.4 +/-    0.57       9.7 +/-    0.57  0.060 / 0.080
G24     111.8          18.5               11.1 +/-    1.10      25.3 +/-    1.10  0.040 / 0.050
G27     315.4          23.4                7.3 +/-    1.11      14.9 +/-    1.11  0.100 / 0.290
G29     168.6          24.3               11.6 +/-    1.30      23.0 +/-    1.30  0.110 / 0.350
G32     205.2          16.7               14.1 +/-    3.49      33.8 +/-    3.49  0.030 / 0.040