PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-14:57:40
G02     221.1          59.8               11.0 +/-    1.13      12.6 +/-    1.13  0.050 / 0.120
G06     48.6           69.1               11.1 +/-    0.85      11.8 +/-    0.85  0.060 / 0.160
G12     320.9          43.8                8.6 +/-    1.25      11.9 +/-    1.25  0.050 / 0.080
G17     61.8           28.3                7.7 +/-    1.26      13.9 +/-    1.26  0.060 / 0.060
G19     39.4           49.9                9.8 +/-    0.58      12.4 +/-    0.58  0.030 / 0.040
G24     256.2          40.5               12.8 +/-    1.47      18.4 +/-    1.47  0.030 / 0.040
G28     125.3          11.0               10.3 +/-    3.39      28.0 +/-    3.39  0.050 / 0.050