PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/02-19:57:30
G02     205.3          41.0               16.0 +/-    1.32      22.9 +/-    1.32  0.060 / 0.130
G06     149.9          74.5               13.2 +/-    1.19      13.7 +/-    1.19  0.060 / 0.150
G12     309.6          18.0               10.8 +/-    1.56      24.9 +/-    1.56  0.060 / 0.090
G17     40.7           45.3                9.1 +/-    0.46      12.2 +/-    0.46  0.050 / 0.090
G19     14.6           61.0                9.7 +/-    0.52      10.9 +/-    0.52  0.050 / 0.080
G24     290.1          40.7               11.3 +/-    0.98      16.3 +/-    0.98  0.040 / 0.080
G28     105.8          31.5               12.2 +/-    0.77      20.7 +/-    0.77  0.070 / 0.140