PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-18:12:30
G02     205.1          39.1               11.4 +/-    1.27      16.9 +/-    1.27  0.060 / 0.150
G06     150.0          73.8               10.0 +/-    0.78      10.4 +/-    0.78  0.060 / 0.130
G12     309.1          17.5                8.1 +/-    2.71      19.0 +/-    2.71  0.080 / 0.110
G17     38.6           47.1                7.9 +/-    1.61      10.3 +/-    1.61  0.070 / 0.090
G19     13.1           61.6                8.3 +/-    0.66       9.4 +/-    0.66  0.070 / 0.090
G24     292.0          40.0               10.4 +/-    7.94      15.1 +/-    7.94  0.080 / 0.100
G28     104.4          32.7                8.9 +/-    1.00      14.8 +/-    1.00  0.040 / 0.060