PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-01:28:10
G05     52.2           9.6                 6.7 +/-    2.60      18.7 +/-    2.60  0.100 / 0.290
G10     242.0          18.8               13.4 +/-    2.22      30.5 +/-    2.22  0.100 / 0.330
G13     65.1           34.7                9.5 +/-    1.56      15.1 +/-    1.56  0.140 / 0.230
G15     112.0          56.8               12.1 +/-    0.56      14.2 +/-    0.56  0.330 / 0.410
G16     305.2          15.3                6.3 +/-    2.52      15.6 +/-    2.52  0.060 / 0.060
G20     254.3          38.5               11.6 +/-    1.59      17.2 +/-    1.59  0.040 / 0.050
G21     320.7          52.0                9.7 +/-    0.60      12.0 +/-    0.60  0.060 / 0.100
G26     277.1          19.3                9.5 +/-    1.85      21.3 +/-    1.85  0.060 / 0.120
G29     161.5          63.5               10.5 +/-    0.37      11.6 +/-    0.37  0.030 / 0.040