PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-11:27:50
G01     253.8          37.5                5.4 +/-    0.96       8.2 +/-    0.96  0.060 / 0.110
G03     316.7          45.4                1.6 +/-    0.72       2.2 +/-    0.72  0.060 / 0.100
G11     239.1          13.2                5.8 +/-    3.45      15.0 +/-    3.45  0.040 / 0.040
G14     57.1           42.3                3.5 +/-    0.76       4.9 +/-    0.76  0.040 / 0.040
G18     221.0          29.3                4.6 +/-    1.38       8.1 +/-    1.38  0.050 / 0.080
G22     306.2          67.3                4.2 +/-    0.45       4.5 +/-    0.45  0.070 / 0.090
G25     42.1           11.3                3.0 +/-    1.60       8.3 +/-    1.60  0.040 / 0.090
G26     141.7          34.5                5.8 +/-    0.69       9.2 +/-    0.69  0.050 / 0.080
G31     42.7           62.1                3.0 +/-    0.54       3.4 +/-    0.54  0.180 / 0.620
G32     72.1           28.6                1.8 +/-    1.08       3.2 +/-    1.08  0.170 / 0.580