PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-13:58:10
G01     127.0          10.7              -15.6 +/-   29.46     -42.7 +/-   29.46  0.130 / 0.140
G07     61.6           67.4                7.3 +/-    0.53       7.8 +/-    0.53  0.120 / 0.090
G08     52.4           41.9                5.6 +/-    0.87       7.9 +/-    0.87  0.070 / 0.100
G09     178.9          38.5                7.9 +/-    1.03      11.8 +/-    1.03  0.050 / 0.090
G11     119.0          35.5                8.0 +/-    0.74      12.6 +/-    0.74  0.030 / 0.040
G13     321.0          11.8                0.3 +/-   17.77       0.7 +/-   17.77  0.040 / 0.030
G17     199.9          12.0                0.4 +/-   18.60       1.1 +/-   18.60  0.270 / 0.380
G18     103.5          16.1                8.1 +/-    1.78      19.6 +/-    1.78  0.130 / 0.350
G28     268.7          47.8                6.8 +/-    2.60       8.9 +/-    2.60  0.210 / 0.340
G30     334.9          61.9                6.0 +/-    0.60       6.7 +/-    0.60  0.080 / 0.080