PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-14:12:50
G02     201.3          16.3                7.1 +/-    4.68      17.1 +/-    4.68  0.130 / 0.170
G06     168.2          54.1                9.2 +/-    0.78      11.1 +/-    0.78  0.130 / 0.200
G13     228.0          14.1                6.6 +/-    2.87      16.7 +/-    2.87  0.110 / 0.140
G17     22.9           59.5                7.7 +/-    0.73       8.8 +/-    0.73  0.110 / 0.110
G19     304.9          70.0                5.6 +/-    0.79       5.9 +/-    0.79  0.220 / 0.530
G24     310.0          30.1                7.0 +/-    1.31      12.2 +/-    1.31  0.170 / 0.830
G28     85.9           40.8                6.5 +/-    1.07       9.3 +/-    1.07  0.040 / 0.040
G30     157.6          17.8                8.7 +/-    0.67      20.1 +/-    0.67  0.040 / 0.030