PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-08:27:40
G01     42.2           17.9                4.8 +/-    3.52      11.0 +/-    3.52  0.070 / 0.110
G06     174.4          34.9                6.6 +/-    1.17      10.5 +/-    1.17  0.060 / 0.090
G11     43.7           10.0                2.4 +/-    2.89       6.8 +/-    2.89  0.130 / 0.260
G13     239.9          25.5                7.0 +/-    1.54      13.5 +/-    1.54  0.150 / 0.310
G15     273.4          13.7                2.4 +/-    1.57       6.1 +/-    1.57  0.200 / 0.300
G17     349.8          74.3                7.7 +/-    0.54       7.9 +/-    0.54  0.230 / 0.300
G19     267.6          68.8                7.0 +/-    1.21       7.4 +/-    1.21  0.040 / 0.020
G24     317.9          14.2                1.1 +/-    2.37       2.8 +/-    2.37  0.030 / 0.030
G28     55.9           54.5                5.8 +/-    0.91       6.9 +/-    0.91  0.040 / 0.050
G30     154.3          34.9                7.7 +/-    1.04      12.2 +/-    1.04  0.040 / 0.070