PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-17:12:50
G01     42.6           18.5                6.9 +/-    3.39      15.8 +/-    3.39  0.040 / 0.070
G06     175.6          34.3                8.9 +/-    1.30      14.2 +/-    1.30  0.070 / 0.060
G13     239.9          25.1                9.3 +/-    1.66      18.2 +/-    1.66  0.160 / 0.270
G15     273.9          13.5                9.0 +/-    1.32      23.1 +/-    1.32  0.290 / 0.340
G17     346.3          74.4                9.2 +/-    0.31       9.5 +/-    0.31  0.260 / 0.440
G19     267.2          68.0                8.9 +/-    1.05       9.6 +/-    1.05  0.370 / 0.170
G24     317.5          15.8                6.4 +/-    2.56      15.5 +/-    2.56  0.030 / 0.030
G28     59.8           52.6                8.3 +/-    1.50      10.1 +/-    1.50  0.030 / 0.030
G30     152.7          29.1               10.1 +/-    1.51      18.0 +/-    1.51  0.040 / 0.040