PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-09:13:00
G01     44.2           20.1                3.8 +/-    2.38       8.3 +/-    2.38  0.040 / 0.050
G06     178.8          30.7                7.1 +/-    1.70      12.3 +/-    1.70  0.050 / 0.050
G13     244.0          25.5                5.2 +/-    2.23      10.1 +/-    2.23  0.130 / 0.210
G15     275.7          14.2                3.1 +/-    1.25       7.9 +/-    1.25  0.130 / 0.390
G17     354.3          73.5                6.3 +/-    0.36       6.5 +/-    0.36  0.110 / 0.300
G19     265.9          67.6                5.9 +/-    0.62       6.3 +/-    0.62  0.070 / 0.240
G24     318.5          13.5                3.7 +/-    2.22       9.4 +/-    2.22  0.020 / 0.020
G28     65.2           48.9                5.1 +/-    0.99       6.5 +/-    0.99  0.030 / 0.020
G30     152.7          32.6                7.8 +/-    1.51      12.9 +/-    1.51  0.080 / 0.130