PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-11:57:50
G02     221.6          65.0                5.7 +/-    0.49       6.2 +/-    0.49  0.060 / 0.110
G06     47.8           68.5                4.4 +/-    0.79       4.7 +/-    0.79  0.060 / 0.100
G12     320.1          42.5                4.9 +/-    1.54       6.9 +/-    1.54  0.040 / 0.040
G17     60.5           29.9                3.5 +/-    0.69       6.1 +/-    0.69  0.040 / 0.040
G19     46.6           44.0                4.1 +/-    0.96       5.6 +/-    0.96  0.080 / 0.440
G28     124.0          16.6                4.9 +/-    2.85      11.8 +/-    2.85  0.080 / 0.330