PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-11:28:00
G01     42.5           18.3                2.9 +/-    3.29       6.7 +/-    3.29  0.120 / 0.330
G06     174.4          34.9                5.0 +/-    1.21       8.0 +/-    1.21  0.250 / 0.410
G13     240.1          25.5                4.3 +/-    1.94       8.3 +/-    1.94  0.030 / 0.020
G15     275.6          13.4                2.5 +/-    0.87       6.4 +/-    0.87  0.020 / 0.020
G17     342.7          75.0                5.6 +/-    0.54       5.8 +/-    0.54  0.040 / 0.040
G19     267.1          68.5                4.2 +/-    0.67       4.5 +/-    0.67  0.030 / 0.040
G24     317.9          14.4                0.6 +/-    1.03       1.5 +/-    1.03  0.140 / 0.230
G28     57.0           53.9                4.3 +/-    0.76       5.2 +/-    0.76  0.080 / 0.210
G30     153.8          33.4                6.3 +/-    1.09      10.3 +/-    1.09  0.060 / 0.110