PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-23:12:20
G02     201.9          31.5               12.4 +/-    1.10      21.0 +/-    1.10  0.060 / 0.090
G06     169.8          62.4               11.7 +/-    0.55      13.1 +/-    0.55  0.050 / 0.070
G17     33.4           51.0                9.1 +/-    1.02      11.3 +/-    1.02  0.070 / 0.090
G19     352.6          67.4                9.2 +/-    0.82       9.9 +/-    0.82  0.100 / 0.060
G24     300.4          37.1                9.4 +/-    1.63      14.4 +/-    1.63  0.040 / 0.030
G28     96.3           37.1               11.6 +/-    0.67      17.8 +/-    0.67  0.050 / 0.030