PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-09:58:00
G01     310.8          31.0                5.3 +/-    1.60       9.1 +/-    1.60  0.080 / 0.110
G10     101.1          42.0                5.0 +/-    0.39       7.0 +/-    0.39  0.080 / 0.120
G11     286.1          27.8                2.2 +/-    1.88       4.1 +/-    1.88  0.050 / 0.050
G14     347.4          69.0                3.6 +/-    0.43       3.8 +/-    0.43  0.040 / 0.050
G18     282.3          50.1                5.8 +/-    1.27       7.3 +/-    1.27  0.070 / 0.120
G20     117.6          17.3                5.7 +/-    2.04      13.3 +/-    2.04  0.070 / 0.150
G22     309.2          25.9                2.6 +/-    1.68       4.9 +/-    1.68  0.040 / 0.060
G25     86.4           14.7                3.7 +/-    1.48       9.4 +/-    1.48  0.040 / 0.060
G31     170.4          59.3                7.1 +/-    0.94       8.1 +/-    0.94  0.080 / 0.180
G32     24.5           59.4                4.6 +/-    0.35       5.2 +/-    0.35  0.080 / 0.190