PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/15-11:27:50
G01     296.4          39.3                4.8 +/-    6.28       7.0 +/-    6.28  0.080 / 0.080
G03     311.1          17.9                3.6 +/-    1.26       8.4 +/-    1.26  0.070 / 0.080
G10     115.7          31.2                5.8 +/-    0.60       9.9 +/-    0.60  0.050 / 0.050
G11     269.1          26.8                7.9 +/-    1.99      14.9 +/-    1.99  0.050 / 0.040
G14     18.0           61.2                5.5 +/-    0.49       6.2 +/-    0.49  0.040 / 0.040
G18     256.6          49.6                6.4 +/-    4.08       8.0 +/-    4.08  0.040 / 0.030
G22     314.2          39.7                4.4 +/-    1.43       6.4 +/-    1.43  0.070 / 0.080
G25     71.1           17.9                4.2 +/-    1.19       9.6 +/-    1.19  0.080 / 0.070
G31     151.9          74.8                8.4 +/-    0.47       8.7 +/-    0.47  0.070 / 0.080
G32     40.9           50.1                4.5 +/-    1.54       5.7 +/-    1.54  0.080 / 0.080