PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-11:12:50
G01     110.5          23.5                3.1 +/-    1.60       6.3 +/-    1.60  0.030 / 0.030
G07     101.1          60.6                4.7 +/-    0.58       5.3 +/-    0.58  0.040 / 0.030
G08     41.9           21.0                1.6 +/-    1.16       3.5 +/-    1.16  0.030 / 0.040
G09     173.7          14.5                4.4 +/-    1.79      11.1 +/-    1.79  0.030 / 0.030
G11     91.9           42.1                4.7 +/-    0.61       6.5 +/-    0.61  0.090 / 0.190
G13     312.1          26.6                2.1 +/-    1.36       3.9 +/-    1.36  0.090 / 0.170
G17     203.7          36.1                5.7 +/-    1.80       8.8 +/-    1.80  0.080 / 0.170
G18     83.4           23.4                2.7 +/-    0.77       5.5 +/-    0.77  0.080 / 0.170
G28     310.0          60.2                3.3 +/-    0.76       3.7 +/-    0.76  0.060 / 0.200
G30     1.8            75.0                4.0 +/-    0.54       4.2 +/-    0.54  0.070 / 0.190