PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-09:13:00
G01     43.1           18.8                3.9 +/-    3.11       8.8 +/-    3.11  0.050 / 0.050
G06     178.5          32.6                8.1 +/-    1.75      13.5 +/-    1.75  0.040 / 0.050
G13     242.3          24.4                7.3 +/-    1.77      14.5 +/-    1.77  0.160 / 0.250
G15     274.0          13.7                3.8 +/-    1.26       9.8 +/-    1.26  0.210 / 0.380
G17     358.7          72.1                6.1 +/-    0.56       6.4 +/-    0.56  0.030 / 0.020
G19     270.9          68.6                6.4 +/-    0.67       6.8 +/-    0.67  0.030 / 0.020
G24     318.1          15.1                1.9 +/-    2.50       4.7 +/-    2.50  0.180 / 0.190
G28     67.7           48.0                5.9 +/-    2.49       7.7 +/-    2.49  0.160 / 0.250
G30     153.3          30.7                8.5 +/-    1.17      14.7 +/-    1.17  0.160 / 0.220