PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-20:57:40
G02     223.5          67.2               11.1 +/-    0.92      11.9 +/-    0.92  0.120 / 0.410
G06     46.5           69.4               10.2 +/-    0.32      10.8 +/-    0.32  0.120 / 0.490
G12     319.4          40.0                9.0 +/-    1.17      13.1 +/-    1.17  0.060 / 0.080
G17     62.2           28.6                7.5 +/-    0.74      13.5 +/-    0.74  0.070 / 0.090
G19     47.4           43.9                9.5 +/-    1.38      13.0 +/-    1.38  0.050 / 0.050
G24     255.8          39.3               11.6 +/-    0.95      17.1 +/-    0.95  0.050 / 0.030
G28     125.7          13.0               12.5 +/-    2.47      32.7 +/-    2.47  0.040 / 0.070