PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-05:58:10
G07     22.8           68.6                3.3 +/-    0.61       3.5 +/-    0.61  0.210 / 0.200
G08     59.5           45.4                4.6 +/-    0.56       6.1 +/-    0.56  0.180 / 0.350
G09     175.3          44.2                7.2 +/-    1.36       9.9 +/-    1.36  0.100 / 0.200
G11     127.5          28.8                6.2 +/-    2.51      11.2 +/-    2.51  0.120 / 0.180
G18     111.6          10.9                5.9 +/-    2.67      16.2 +/-    2.67  0.030 / 0.030
G23     161.0          20.1                3.5 +/-    1.68       7.7 +/-    1.68  0.030 / 0.030
G27     40.7           17.8                2.3 +/-    1.81       5.4 +/-    1.81  0.050 / 0.040
G28     259.1          45.0                5.3 +/-    3.57       7.1 +/-    3.57  0.050 / 0.050
G30     319.6          50.0                1.6 +/-    1.02       2.1 +/-    1.02  0.180 / 0.370