PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-22:42:40
G08     320.6          11.0               -5.1 +/-   39.02     -13.9 +/-   39.02  0.070 / 0.030
G10     301.6          52.8               13.1 +/-    1.44      16.0 +/-    1.44  0.050 / 0.030
G14     211.1          16.5               24.0 +/-    3.10      57.6 +/-    3.10  0.030 / 0.040
G15     45.7           25.5               11.9 +/-    2.04      23.0 +/-    2.04  0.030 / 0.040
G18     6.1            65.3               13.2 +/-    0.74      14.4 +/-    0.74  0.070 / 0.100
G20     74.0           15.5               11.6 +/-    4.81      28.6 +/-    4.81  0.070 / 0.120
G21     108.3          70.3               14.1 +/-    0.86      14.9 +/-    0.86  0.080 / 0.070
G24     95.3           27.8               14.6 +/-    1.13      26.7 +/-    1.13  0.060 / 0.070
G27     294.7          36.4               15.6 +/-    1.81      24.1 +/-    1.81  0.120 / 0.290
G32     213.0          32.6               16.0 +/-    2.78      26.6 +/-    2.78  0.140 / 0.330