PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-08:27:50
G01     40.2           15.3                3.0 +/-    2.53       7.4 +/-    2.53  0.070 / 0.110
G06     173.5          38.8                6.9 +/-    0.93      10.2 +/-    0.93  0.090 / 0.110
G13     236.7          23.1                5.7 +/-    2.24      11.7 +/-    2.24  0.140 / 0.210
G15     269.9          12.5                4.5 +/-    1.75      11.9 +/-    1.75  0.140 / 0.190
G17     359.4          71.5                5.8 +/-    0.64       6.0 +/-    0.64  0.080 / 0.300
G19     278.7          70.7                5.5 +/-    0.45       5.8 +/-    0.45  0.100 / 0.310
G24     317.0          17.2                4.4 +/-    3.38      10.3 +/-    3.38  0.040 / 0.070
G28     61.7           53.0                4.2 +/-    0.42       5.1 +/-    0.42  0.040 / 0.060
G30     155.4          31.1                7.2 +/-    1.47      12.4 +/-    1.47  0.100 / 0.290