PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-07:57:50
G01     50.6           25.4                4.6 +/-    1.40       8.9 +/-    1.40  0.040 / 0.060
G06     177.0          22.9                5.3 +/-    1.90      11.0 +/-    1.90  0.050 / 0.060
G07     145.0          14.2                5.3 +/-    1.65      13.5 +/-    1.65  0.070 / 0.160
G11     45.8           20.0                2.1 +/-    1.02       4.6 +/-    1.02  0.070 / 0.150
G13     251.5          32.6                6.2 +/-    1.01      10.2 +/-    1.01  0.090 / 0.290
G15     284.5          16.3                4.1 +/-    2.81      10.0 +/-    2.81  0.120 / 0.310
G17     297.0          79.3                6.3 +/-    0.50       6.4 +/-    0.50  0.110 / 0.260
G19     242.7          60.3                8.9 +/-    0.70      10.0 +/-    0.70  0.110 / 0.230
G28     36.1           58.3                4.1 +/-    0.58       4.7 +/-    0.58  0.040 / 0.060
G30     149.6          47.1                7.6 +/-    0.73      10.0 +/-    0.73  0.040 / 0.050