PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-23:27:40
G08     314.5          16.4               10.1 +/-    1.42      24.4 +/-    1.42  0.050 / 0.050
G10     316.4          56.8               11.1 +/-    1.13      13.0 +/-    1.13  0.040 / 0.040
G14     214.4          25.2               15.2 +/-    2.95      29.5 +/-    2.95  0.040 / 0.040
G15     45.7           17.7               10.8 +/-    2.54      25.1 +/-    2.54  0.040 / 0.040
G18     24.6           62.6               13.2 +/-    1.34      14.6 +/-    1.34  0.070 / 0.080
G20     80.7           9.6                13.8 +/-    3.86      38.9 +/-    3.86  0.090 / 0.090
G21     125.0          62.8               13.8 +/-    0.57      15.3 +/-    0.57  0.070 / 0.060
G24     84.7           30.2               13.7 +/-    0.94      24.0 +/-    0.94  0.090 / 0.070
G27     283.0          38.1               14.3 +/-    0.87      21.5 +/-    0.87  0.110 / 0.210
G32     217.9          41.9               15.6 +/-    1.24      22.0 +/-    1.24  0.080 / 0.220