PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-15:42:30
G01     40.5           15.7                7.5 +/-    2.49      18.4 +/-    2.49  0.030 / 0.030
G06     174.2          38.8               11.9 +/-    0.89      17.7 +/-    0.89  0.040 / 0.030
G13     236.6          22.7               11.9 +/-    1.68      24.5 +/-    1.68  0.120 / 0.090
G15     270.9          12.2               10.8 +/-    2.39      28.7 +/-    2.39  0.120 / 0.090
G17     352.7          72.4                9.1 +/-    0.47       9.5 +/-    0.47  0.130 / 0.260
G19     278.5          70.2                9.8 +/-    0.76      10.4 +/-    0.76  0.070 / 0.160
G24     316.6          18.5                3.6 +/-   11.35       8.1 +/-   11.35  0.050 / 0.030
G28     64.8           51.4                8.9 +/-    1.45      11.0 +/-    1.45  0.050 / 0.040
G30     154.2          26.6               10.8 +/-    1.22      20.4 +/-    1.22  0.120 / 0.210