PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-10:58:00
G01     52.6           26.7                3.7 +/-    0.94       7.0 +/-    0.94  0.040 / 0.060
G06     177.4          21.2                3.8 +/-    2.97       8.2 +/-    2.97  0.040 / 0.060
G07     144.2          14.9                4.5 +/-    1.51      11.2 +/-    1.51  0.090 / 0.220
G11     46.0           20.4                1.3 +/-    1.23       2.7 +/-    1.23  0.160 / 0.190
G13     253.7          33.5                4.8 +/-    1.42       7.8 +/-    1.42  0.020 / 0.030
G15     288.5          15.8                1.3 +/-    1.64       3.2 +/-    1.64  0.030 / 0.030
G17     277.8          77.8                5.7 +/-    1.04       5.8 +/-    1.04  0.060 / 0.140
G19     239.8          58.3                6.2 +/-    1.17       7.1 +/-    1.17  0.070 / 0.150
G28     34.3           58.4                3.7 +/-    0.49       4.3 +/-    0.49  0.040 / 0.040
G30     148.1          47.5                6.5 +/-    0.83       8.4 +/-    0.83  0.040 / 0.050