PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-19:12:50
G10     243.9          22.6               14.4 +/-    1.24      29.8 +/-    1.24  0.060 / 0.060
G13     61.0           32.5               11.3 +/-    0.61      18.8 +/-    0.61  0.050 / 0.070
G15     104.0          57.6               12.7 +/-    0.62      14.7 +/-    0.62  0.050 / 0.130
G16     303.2          15.5                5.2 +/-    2.95      12.9 +/-    2.95  0.060 / 0.120
G20     260.7          46.3               11.8 +/-    1.85      15.5 +/-    1.85  0.150 / 0.620
G21     324.3          53.8               11.2 +/-    1.14      13.5 +/-    1.14  0.170 / 0.660
G26     275.9          18.2               10.8 +/-    1.48      24.9 +/-    1.48  0.030 / 0.040
G29     160.6          60.0               15.3 +/-    0.76      17.3 +/-    0.76  0.030 / 0.050