PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-05:42:40
G02     318.7          81.1                2.5 +/-    0.97       2.6 +/-    0.97  0.030 / 0.050
G05     166.6          28.1                5.0 +/-    1.47       9.1 +/-    1.47  0.030 / 0.040
G06     38.9           50.0                2.4 +/-    0.62       3.0 +/-    0.62  0.050 / 0.090
G12     317.9          63.2                1.9 +/-    1.13       2.1 +/-    1.13  0.040 / 0.110
G17     82.3           12.6                4.0 +/-    2.13      10.5 +/-    2.13  0.090 / 0.130
G19     68.9           31.4                3.6 +/-    0.41       6.2 +/-    0.41  0.110 / 0.160
G24     229.8          25.8                4.6 +/-    2.80       8.9 +/-    2.80  0.070 / 0.180
G25     317.3          27.1                1.3 +/-    1.21       2.3 +/-    1.21  0.070 / 0.150