PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-16:28:10
G02     213.3          52.8                9.9 +/-    0.82      12.1 +/-    0.82  0.070 / 0.080
G06     67.9           75.8                9.0 +/-    0.36       9.3 +/-    0.36  0.100 / 0.090
G12     318.4          36.3                8.6 +/-    1.18      13.3 +/-    1.18  0.050 / 0.080
G17     54.4           34.1                7.2 +/-    1.82      11.7 +/-    1.82  0.050 / 0.090
G19     29.1           54.7                7.9 +/-    2.00       9.4 +/-    2.00  0.030 / 0.020
G24     269.4          42.8                8.8 +/-    1.90      12.2 +/-    1.90  0.040 / 0.030
G28     119.3          17.2                8.9 +/-    1.05      21.0 +/-    1.05  0.050 / 0.040