PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-10:27:50
G01     53.1           27.0                2.1 +/-    2.12       3.8 +/-    2.12  0.180 / 0.210
G06     177.5          20.6              -13.4 +/-   31.21     -29.1 +/-   31.21  0.180 / 0.320
G07     144.0          15.6                4.0 +/-    2.00       9.9 +/-    2.00  0.030 / 0.030
G11     46.3           21.0                2.5 +/-    2.63       5.4 +/-    2.63  0.030 / 0.020
G13     254.4          33.8                6.2 +/-    1.53      10.1 +/-    1.53  0.090 / 0.080
G15     288.7          16.0                3.6 +/-    2.04       8.8 +/-    2.04  0.090 / 0.090
G17     276.0          77.8                5.2 +/-    0.56       5.3 +/-    0.56  0.150 / 0.180
G19     238.9          57.8                4.8 +/-    2.29       5.5 +/-    2.29  0.150 / 0.210
G28     32.9           58.6                4.4 +/-    0.91       5.0 +/-    0.91  0.040 / 0.050
G30     147.8          48.4                5.2 +/-    0.82       6.7 +/-    0.82  0.040 / 0.050