PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-10:43:00
G02     202.3          29.8                3.7 +/-    1.51       6.6 +/-    1.51  0.110 / 0.200
G06     161.4          65.3                5.6 +/-    1.04       6.1 +/-    1.04  0.140 / 0.210
G12     305.1          13.8                4.1 +/-    2.98      10.4 +/-    2.98  0.030 / 0.030
G17     30.8           53.1                5.2 +/-    0.98       6.3 +/-    0.98  0.030 / 0.030
G19     357.0          66.9                4.4 +/-    0.82       4.8 +/-    0.82  0.050 / 0.080
G28     93.8           40.3                6.2 +/-    0.66       9.0 +/-    0.66  0.050 / 0.080