PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-10:27:50
G02     202.3          30.7                6.8 +/-    1.94      11.7 +/-    1.94  0.080 / 0.100
G06     160.7          65.9                6.3 +/-    1.47       6.8 +/-    1.47  0.080 / 0.090
G12     305.5          14.5                3.2 +/-    1.63       8.2 +/-    1.63  0.040 / 0.040
G17     31.6           52.5                3.8 +/-    0.72       4.6 +/-    0.72  0.030 / 0.050
G19     358.5          66.5                3.9 +/-    0.44       4.3 +/-    0.44  0.050 / 0.100
G24     302.3          35.0                4.7 +/-    0.86       7.4 +/-    0.86  0.050 / 0.090
G28     94.4           40.0                5.2 +/-    0.31       7.6 +/-    0.31  0.120 / 0.260