PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-04:42:50
G01     290.9          41.3                4.3 +/-    3.84       6.1 +/-    3.84  0.050 / 0.080
G03     311.7          16.8                4.8 +/-    2.20      11.5 +/-    2.20  0.060 / 0.080
G10     118.9          27.8                5.6 +/-    1.17      10.2 +/-    1.17  0.070 / 0.060
G11     266.4          25.3                7.4 +/-    3.52      14.4 +/-    3.52  0.080 / 0.090
G14     21.2           60.0                5.3 +/-    1.26       6.0 +/-    1.26  0.040 / 0.060
G18     252.6          48.1                8.1 +/-    9.15      10.4 +/-    9.15  0.040 / 0.050
G22     313.9          37.3                4.6 +/-    1.19       7.0 +/-    1.19  0.120 / 0.110
G25     69.0           18.7                2.9 +/-    1.24       6.7 +/-    1.24  0.180 / 0.130
G31     124.9          78.1                6.8 +/-    0.42       6.9 +/-    0.42  0.090 / 0.130
G32     49.0           43.7                4.4 +/-    1.27       6.0 +/-    1.27  0.080 / 0.160