PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-01:12:30
G10     246.2          22.9               12.4 +/-    2.64      25.4 +/-    2.64  0.040 / 0.040
G13     58.7           32.6                9.7 +/-    1.78      16.2 +/-    1.78  0.040 / 0.040
G15     100.9          58.4               11.5 +/-    1.21      13.2 +/-    1.21  0.130 / 0.360
G16     299.7          15.9                7.6 +/-    2.59      18.6 +/-    2.59  0.120 / 0.320
G20     258.3          38.8               10.9 +/-    3.95      16.1 +/-    3.95  0.040 / 0.050
G21     326.6          55.9               10.1 +/-    0.49      11.9 +/-    0.49  0.040 / 0.050
G26     271.4          17.7               10.6 +/-    1.83      24.7 +/-    1.83  0.060 / 0.140
G29     163.7          57.0               12.3 +/-    0.43      14.4 +/-    0.43  0.060 / 0.130