PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-06:12:50
G01     319.5          16.7                5.0 +/-    1.44      11.8 +/-    1.44  0.110 / 0.210
G08     259.4          13.8                6.5 +/-    1.19      16.6 +/-    1.19  0.100 / 0.180
G10     77.7           53.9                3.8 +/-    0.52       4.6 +/-    0.52  0.120 / 0.320
G11     304.5          22.3                2.6 +/-    0.98       5.5 +/-    0.98  0.150 / 0.380
G14     285.2          68.2                4.3 +/-    0.73       4.6 +/-    0.73  0.040 / 0.060
G18     306.1          39.0                4.4 +/-    0.84       6.5 +/-    0.84  0.040 / 0.050
G20     102.7          33.7                6.4 +/-    0.99      10.3 +/-    0.99  0.050 / 0.060
G22     300.5          11.2               -2.0 +/-    3.59      -5.3 +/-    3.59  0.050 / 0.040
G31     174.3          42.5                6.2 +/-    0.94       8.7 +/-    0.94  0.150 / 0.260
G32     9.3            67.3                4.1 +/-    1.07       4.4 +/-    1.07  0.160 / 0.300