PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-21:27:30
G02     19.8           65.3                9.5 +/-    0.39      10.4 +/-    0.39  0.030 / 0.020
G05     152.8          51.8               12.9 +/-    0.58      15.9 +/-    0.58  0.030 / 0.020
G06     48.5           23.3                7.8 +/-    1.51      15.9 +/-    1.51  0.040 / 0.040
G12     216.3          77.8               10.9 +/-    0.83      11.1 +/-    0.83  0.040 / 0.040
G19     89.8           18.7                9.6 +/-    0.85      21.7 +/-    0.85  0.130 / 0.150
G25     309.5          45.0               10.9 +/-    1.14      14.7 +/-    1.14  0.080 / 0.190
G29     298.7          18.9               10.8 +/-    1.58      24.5 +/-    1.58  0.070 / 0.150