PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-07:27:50
G01     60.7           30.8                3.2 +/-    0.86       5.6 +/-    0.86  0.040 / 0.050
G07     141.7          21.3                6.1 +/-    1.09      13.0 +/-    1.09  0.040 / 0.040
G11     47.7           22.9                2.2 +/-    0.59       4.6 +/-    0.59  0.060 / 0.120
G13     262.8          35.8                6.0 +/-    1.28       9.5 +/-    1.28  0.040 / 0.120
G15     296.8          15.2                3.4 +/-    2.38       8.4 +/-    2.38  0.050 / 0.080
G17     263.5          78.5                6.1 +/-    1.16       6.2 +/-    1.16  0.050 / 0.070
G18     41.0           11.4                1.9 +/-    2.28       5.2 +/-    2.28  0.100 / 0.140
G19     231.1          47.1                5.9 +/-    1.38       7.8 +/-    1.38  0.080 / 0.120
G28     31.8           57.7                3.8 +/-    0.46       4.4 +/-    0.46  0.130 / 0.410
G30     143.7          54.7                6.2 +/-    1.58       7.4 +/-    1.58  0.130 / 0.400