PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-18:42:40
G01     42.7           18.7                8.3 +/-    1.51      18.8 +/-    1.51  0.080 / 0.070
G06     176.2          33.7               12.8 +/-    0.95      20.8 +/-    0.95  0.050 / 0.110
G13     240.0          25.1               10.1 +/-    2.62      19.8 +/-    2.62  0.150 / 0.450
G15     273.7          13.5                9.4 +/-    1.69      24.2 +/-    1.69  0.150 / 0.310
G17     349.7          74.0               10.8 +/-    0.51      11.2 +/-    0.51  0.070 / 0.130
G19     266.7          67.8               10.8 +/-    0.71      11.6 +/-    0.71  0.070 / 0.150
G24     317.4          16.2                9.6 +/-    2.47      23.3 +/-    2.47  0.040 / 0.050
G28     60.3           52.4               10.4 +/-    0.35      12.8 +/-    0.35  0.040 / 0.040
G30     152.5          28.5               10.7 +/-    2.25      19.3 +/-    2.25  0.080 / 0.090