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                6.2 +/-    1.95      10.7 +/-    1.95  0.080 / 0.170
G10     101.1          42.0                6.1 +/-    0.65       8.6 +/-    0.65  0.160 / 0.160
G11     286.1          27.8                3.5 +/-    1.33       6.5 +/-    1.33  0.090 / 0.110
G14     347.4          69.0                6.1 +/-    0.89       6.5 +/-    0.89  0.090 / 0.100
G18     282.3          50.1                5.6 +/-    0.65       7.1 +/-    0.65  0.040 / 0.040
G20     117.6          17.3                5.6 +/-    1.37      13.2 +/-    1.37  0.040 / 0.050
G22     309.2          25.9                3.5 +/-    1.65       6.7 +/-    1.65  0.090 / 0.170
G25     86.4           14.7                4.2 +/-    2.90      10.5 +/-    2.90  0.100 / 0.150
G31     170.4          59.3                6.2 +/-    0.61       7.1 +/-    0.61  0.040 / 0.050
G32     24.5           59.4                5.1 +/-    1.04       5.8 +/-    1.04  0.040 / 0.050