PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-19:43:10
G08     316.1          15.1                9.6 +/-    3.02      23.9 +/-    3.02  0.060 / 0.080
G10     314.3          56.3                8.8 +/-    0.71      10.4 +/-    0.71  0.060 / 0.090
G14     213.9          23.2               14.5 +/-    1.31      29.6 +/-    1.31  0.050 / 0.060
G15     45.6           17.5                9.0 +/-    0.59      21.1 +/-    0.59  0.030 / 0.060
G18     24.6           62.5               10.0 +/-    0.26      11.1 +/-    0.26  0.040 / 0.040
G20     79.2           11.9               11.5 +/-    2.20      30.9 +/-    2.20  0.050 / 0.050
G21     123.9          61.6               13.4 +/-    0.74      15.0 +/-    0.74  0.130 / 0.530
G24     86.2           29.9               11.7 +/-    0.56      20.6 +/-    0.56  0.140 / 0.430
G27     285.0          37.9               11.0 +/-    1.18      16.5 +/-    1.18  0.110 / 0.310
G32     217.0          41.2               14.3 +/-    0.87      20.4 +/-    0.87  0.100 / 0.290