PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-03:58:10
G02     202.2          35.8                5.4 +/-    0.92       8.4 +/-    0.92  0.050 / 0.140
G06     166.1          66.7                3.8 +/-    0.59       4.1 +/-    0.59  0.070 / 0.110
G12     306.9          13.4                2.8 +/-    2.01       7.2 +/-    2.01  0.030 / 0.030
G17     33.9           51.0                4.7 +/-    2.23       5.8 +/-    2.23  0.030 / 0.030
G19     0.7            65.5                1.5 +/-    0.59       1.7 +/-    0.59  0.050 / 0.060
G24     299.6          37.1                2.2 +/-    3.56       3.4 +/-    3.56  0.030 / 0.050
G28     102.2          31.1                3.2 +/-    0.85       5.5 +/-    0.85  0.120 / 0.200