PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-01:28:00
G10     253.4          29.0               13.5 +/-    2.34      24.2 +/-    2.34  0.140 / 0.510
G13     50.7           28.0                9.9 +/-    0.87      18.1 +/-    0.87  0.140 / 0.530
G15     82.8           57.8               13.3 +/-    0.55      15.4 +/-    0.55  0.070 / 0.130
G16     291.2          15.6                9.0 +/-    3.22      22.1 +/-    3.22  0.070 / 0.110
G20     267.1          44.1               12.3 +/-    0.73      16.9 +/-    0.73  0.040 / 0.060
G21     336.6          61.9               11.9 +/-    0.66      13.3 +/-    0.66  0.040 / 0.050
G26     263.3          14.3               11.3 +/-    1.63      28.5 +/-    1.63  0.030 / 0.070
G29     166.1          47.3               14.1 +/-    1.21      18.4 +/-    1.21  0.030 / 0.060