PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-23:28:00
G08     290.4          23.4               12.0 +/-    1.57      24.2 +/-    1.57  0.040 / 0.030
G10     8.4            63.2               13.0 +/-    1.13      14.4 +/-    1.13  0.040 / 0.030
G14     231.7          49.2               13.7 +/-    3.09      17.4 +/-    3.09  0.060 / 0.080
G18     65.3           50.4               14.1 +/-    0.89      17.7 +/-    0.89  0.050 / 0.080
G21     146.5          37.1               15.1 +/-    0.99      23.0 +/-    0.99  0.170 / 0.100
G24     56.0           26.1               13.3 +/-    2.25      25.4 +/-    2.25  0.260 / 0.130
G27     251.1          30.6               14.3 +/-    2.76      24.7 +/-    2.76  0.090 / 0.090
G32     246.3          65.4               13.2 +/-    1.10      14.4 +/-    1.10  0.140 / 0.110