PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-03:43:00
G08     314.7          15.9                5.4 +/-    2.41      13.2 +/-    2.41  0.060 / 0.070
G10     326.1          59.2                7.1 +/-    0.39       8.1 +/-    0.39  0.070 / 0.060
G14     215.4          26.5                8.3 +/-    2.53      15.7 +/-    2.53  0.030 / 0.030
G15     46.2           13.1                3.8 +/-    2.31       9.8 +/-    2.31  0.040 / 0.020
G20     28.6           62.0                7.7 +/-    1.91       8.6 +/-    1.91  0.040 / 0.040
G21     129.3          61.4                8.3 +/-    0.69       9.3 +/-    0.69  0.040 / 0.040
G24     79.3           30.1                8.1 +/-    1.35      14.2 +/-    1.35  0.180 / 0.320
G27     282.0          37.7                7.6 +/-    1.38      11.5 +/-    1.38  0.090 / 0.290
G32     219.3          45.6               10.3 +/-    1.20      13.7 +/-    1.20  0.160 / 0.290