PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-06:57:40
G01     123.8          14.2                8.1 +/-    2.62      20.5 +/-    2.62  0.040 / 0.040
G07     68.1           67.9                6.0 +/-    1.03       6.5 +/-    1.03  0.030 / 0.050
G08     46.7           34.0                5.5 +/-    0.86       8.9 +/-    0.86  0.030 / 0.040
G09     174.2          27.5                9.0 +/-    2.15      16.7 +/-    2.15  0.030 / 0.040
G11     111.7          37.7                9.2 +/-    1.06      13.9 +/-    1.06  0.110 / 0.270
G13     319.8          15.3                1.7 +/-    3.28       4.2 +/-    3.28  0.100 / 0.250
G17     199.6          20.9                7.6 +/-    1.47      16.3 +/-    1.47  0.170 / 0.370
G18     97.7           18.5                9.1 +/-    1.75      20.7 +/-    1.75  0.190 / 0.280
G28     281.0          54.0                7.1 +/-    0.75       8.5 +/-    0.75  0.100 / 0.470
G30     335.3          62.6                4.8 +/-    0.79       5.3 +/-    0.79  0.110 / 0.430