PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-01:57:40
G03     223.3          63.4                5.3 +/-    0.61       5.8 +/-    0.61  0.040 / 0.060
G07     253.5          13.5                6.3 +/-    2.62      16.3 +/-    2.62  0.050 / 0.070
G09     308.5          26.3                2.1 +/-    2.15       3.9 +/-    2.15  0.120 / 0.350
G14     104.4          12.3                4.2 +/-    1.94      11.2 +/-    1.94  0.140 / 0.200
G16     104.9          62.3                4.0 +/-    0.98       4.4 +/-    0.98  0.040 / 0.050
G22     193.5          48.0                6.1 +/-    1.34       7.9 +/-    1.34  0.030 / 0.050
G23     326.4          56.3                3.4 +/-    0.63       4.0 +/-    0.63  0.130 / 0.530
G26     58.5           46.3                0.7 +/-    0.49       0.9 +/-    0.49  0.130 / 0.590
G31     57.0           12.6                1.7 +/-    0.68       4.4 +/-    0.68  0.050 / 0.040