PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-06:13:10
G01     312.9          29.0                5.2 +/-    1.85       9.3 +/-    1.85  0.070 / 0.050
G10     97.5           44.0                4.3 +/-    1.76       5.9 +/-    1.76  0.080 / 0.060
G11     290.3          26.9                4.4 +/-    1.70       8.2 +/-    1.70  0.150 / 0.190
G14     336.4          70.2                4.4 +/-    1.79       4.6 +/-    1.79  0.150 / 0.270
G18     288.4          48.7                4.9 +/-    2.34       6.3 +/-    2.34  0.040 / 0.010
G20     115.4          20.0                5.0 +/-    0.98      11.0 +/-    0.98  0.040 / 0.010
G22     307.2          20.6                5.7 +/-    1.94      12.3 +/-    1.94  0.040 / 0.060
G25     90.5           13.5                5.2 +/-    1.42      13.5 +/-    1.42  0.040 / 0.050
G31     170.1          56.8                8.1 +/-    1.19       9.5 +/-    1.19  0.150 / 0.100
G32     23.5           60.0                2.2 +/-    0.97       2.5 +/-    0.97  0.160 / 0.090