PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-17:13:00
G01     42.6           18.5                6.1 +/-    1.40      13.8 +/-    1.40  0.140 / 0.410
G06     175.6          34.3               10.0 +/-    1.10      16.1 +/-    1.10  0.150 / 0.360
G13     239.9          25.1                9.1 +/-    2.43      17.7 +/-    2.43  0.070 / 0.100
G15     273.9          13.5                9.8 +/-    1.66      25.4 +/-    1.66  0.090 / 0.100
G17     346.3          74.4                8.4 +/-    0.66       8.7 +/-    0.66  0.070 / 0.140
G19     267.2          68.0                8.1 +/-    0.55       8.6 +/-    0.55  0.070 / 0.160
G24     317.5          15.8                7.0 +/-    1.92      17.0 +/-    1.92  0.030 / 0.040
G28     59.8           52.6                7.6 +/-    0.67       9.3 +/-    0.67  0.040 / 0.030
G30     152.7          29.1                9.3 +/-    1.58      16.6 +/-    1.58  0.040 / 0.040