PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-10:13:10
G05     49.6           14.8                1.5 +/-    1.72       3.9 +/-    1.72  0.120 / 0.190
G10     237.5          14.9                2.5 +/-    2.92       6.1 +/-    2.92  0.100 / 0.240
G13     72.3           35.6                4.6 +/-    0.97       7.2 +/-    0.97  0.130 / 0.180
G15     120.1          53.8                5.4 +/-    0.41       6.5 +/-    0.41  0.100 / 0.200
G16     315.3          11.1               -1.1 +/-    8.14      -2.9 +/-    8.14  0.060 / 0.050
G20     250.4          38.9                4.4 +/-    1.21       6.5 +/-    1.21  0.060 / 0.060
G21     321.3          52.9                3.0 +/-    1.38       3.6 +/-    1.38  0.050 / 0.080
G26     290.4          18.4                2.5 +/-    0.70       5.8 +/-    0.70  0.070 / 0.100
G29     153.3          65.8                5.5 +/-    0.91       6.0 +/-    0.91  0.020 / 0.050