PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-02:12:30
G10     253.4          29.0               10.6 +/-    2.47      18.9 +/-    2.47  0.040 / 0.050
G13     50.8           28.0                7.4 +/-    0.57      13.5 +/-    0.57  0.040 / 0.060
G15     82.1           57.6                9.4 +/-    0.56      10.9 +/-    0.56  0.130 / 0.560
G16     291.3          15.5                6.2 +/-    3.27      15.1 +/-    3.27  0.160 / 0.510
G20     271.5          50.0                9.7 +/-    0.80      12.3 +/-    0.80  0.060 / 0.180
G21     336.7          61.9                9.5 +/-    0.67      10.7 +/-    0.67  0.070 / 0.140
G26     263.3          14.3                8.4 +/-    1.50      21.2 +/-    1.50  0.080 / 0.140
G29     166.1          47.2               11.1 +/-    0.79      14.5 +/-    0.79  0.070 / 0.130