PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-13:42:40
G03     190.0          19.3                9.6 +/-    1.94      21.5 +/-    1.94  0.080 / 0.190
G07     291.7          38.1                7.5 +/-    1.46      11.2 +/-    1.46  0.070 / 0.140
G08     141.8          29.0               10.7 +/-    1.36      19.1 +/-    1.36  0.050 / 0.100
G09     320.3          65.2                5.3 +/-    0.98       5.8 +/-    0.98  0.040 / 0.080
G16     42.3           35.2                6.0 +/-    0.82       9.5 +/-    0.82  0.030 / 0.040
G23     123.5          74.4                7.5 +/-    0.78       7.7 +/-    0.78  0.030 / 0.030
G27     97.3           34.5                7.8 +/-    1.51      12.5 +/-    1.51  0.110 / 0.260
G30     275.1          13.7                8.6 +/-    1.00      22.0 +/-    1.00  0.160 / 0.250