PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-08:42:40
G02     200.7          18.9                6.4 +/-    2.44      14.4 +/-    2.44  0.090 / 0.110
G06     171.4          52.8                9.6 +/-    0.84      11.7 +/-    0.84  0.100 / 0.090
G13     227.2          13.6                5.1 +/-   10.52      13.2 +/-   10.52  0.040 / 0.040
G17     24.6           58.3                6.2 +/-    0.86       7.1 +/-    0.86  0.040 / 0.040
G19     310.6          70.4                5.3 +/-    0.48       5.6 +/-    0.48  0.190 / 0.850
G24     308.0          32.7                4.7 +/-    1.63       7.8 +/-    1.63  0.370 / 0.830
G28     86.0           41.5                6.4 +/-    1.01       9.1 +/-    1.01  0.040 / 0.030
G30     157.6          16.6                6.2 +/-    0.74      14.9 +/-    0.74  0.040 / 0.030