PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-00:27:30
G02     203.2          38.0               13.8 +/-    0.77      20.8 +/-    0.77  0.190 / 0.230
G06     157.2          71.0               13.7 +/-    0.48      14.5 +/-    0.48  0.220 / 0.260
G12     308.5          16.3                9.1 +/-    1.86      21.9 +/-    1.86  0.130 / 0.090
G17     33.6           51.4               11.4 +/-    1.06      14.1 +/-    1.06  0.130 / 0.080
G19     3.8            64.4               11.0 +/-    0.54      12.1 +/-    0.54  0.050 / 0.020
G24     296.2          38.8               10.1 +/-    1.76      15.1 +/-    1.76  0.040 / 0.020
G28     104.6          29.6               12.9 +/-    0.86      22.9 +/-    0.86  0.100 / 0.110