PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-01:27:30
G02     203.5          39.5               10.8 +/-    1.08      15.8 +/-    1.08  0.140 / 0.180
G06     156.4          71.9               10.7 +/-    0.41      11.2 +/-    0.41  0.140 / 0.180
G12     309.1          16.9                8.2 +/-    2.47      19.5 +/-    2.47  0.040 / 0.050
G17     35.6           49.8                7.4 +/-    1.14       9.4 +/-    1.14  0.030 / 0.050
G19     6.9            63.5                8.3 +/-    0.55       9.2 +/-    0.55  0.060 / 0.030
G24     294.9          39.2                8.5 +/-    4.51      12.6 +/-    4.51  0.050 / 0.030
G28     105.7          28.7                9.2 +/-    2.03      16.5 +/-    2.03  0.090 / 0.100