PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-04:42:30
G02     204.4          43.0                6.5 +/-    0.69       9.0 +/-    0.69  0.100 / 0.130
G06     156.7          73.8                5.5 +/-    0.57       5.7 +/-    0.57  0.090 / 0.170
G12     310.5          18.7                2.6 +/-    2.32       5.8 +/-    2.32  0.030 / 0.060
G17     40.7           45.8                2.0 +/-    1.10       2.7 +/-    1.10  0.070 / 0.060
G19     14.4           61.1                3.0 +/-    0.67       3.4 +/-    0.67  0.090 / 0.150
G24     291.8          40.1                2.0 +/-    8.78       3.0 +/-    8.78  0.180 / 0.160
G28     108.6          26.5                5.8 +/-    0.85      10.9 +/-    0.85  0.040 / 0.030