PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-22:13:00
G10     258.7          32.0               15.8 +/-    2.06      26.5 +/-    2.06  0.030 / 0.050
G13     47.4           25.9               13.7 +/-    1.12      26.3 +/-    1.12  0.030 / 0.040
G15     70.7           54.5               14.5 +/-    0.30      17.4 +/-    0.30  0.150 / 0.430
G16     289.9          13.2               13.0 +/-    1.89      33.8 +/-    1.89  0.160 / 0.490
G18     284.1          60.9               13.5 +/-    0.56      15.2 +/-    0.56  0.110 / 0.340
G20     49.3           40.5               13.2 +/-    0.95      19.1 +/-    0.95  0.130 / 0.410
G21     348.5          67.3               13.1 +/-    0.77      14.1 +/-    0.77  0.050 / 0.080
G26     262.8          11.6               13.5 +/-    1.82      36.4 +/-    1.82  0.060 / 0.070
G27     320.9          13.9               11.7 +/-    2.38      29.8 +/-    2.38  0.090 / 0.220
G29     165.3          36.1               15.2 +/-    0.64      23.7 +/-    0.64  0.090 / 0.190