PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/17-09:43:10
G08     268.7          19.1                5.8 +/-    3.40      13.2 +/-    3.40  0.130 / 0.360
G10     59.1           58.2                4.6 +/-    0.58       5.3 +/-    0.58  0.180 / 0.450
G14     263.1          66.0                5.8 +/-    1.02       6.3 +/-    1.02  0.030 / 0.030
G18     312.8          32.3                4.2 +/-    0.81       7.1 +/-    0.81  0.030 / 0.030
G20     93.8           37.6                6.2 +/-    1.11       9.3 +/-    1.11  0.030 / 0.020
G21     154.1          15.6                4.5 +/-    3.25      11.1 +/-    3.25  0.030 / 0.030
G24     40.0           10.2                1.6 +/-    1.82       4.4 +/-    1.82  0.040 / 0.050
G27     234.7          17.8                4.3 +/-    4.09      10.1 +/-    4.09  0.040 / 0.060
G31     179.2          27.7                5.2 +/-    1.56       9.5 +/-    1.56  0.180 / 0.300
G32     307.7          74.3                4.8 +/-    0.50       5.0 +/-    0.50  0.170 / 0.320