PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-07:28:10
G02     310.1          82.3                3.5 +/-    0.60       3.5 +/-    0.60  0.090 / 0.120
G05     167.2          26.1                5.3 +/-    1.91      10.0 +/-    1.91  0.100 / 0.120
G06     39.2           51.7                3.7 +/-    0.86       4.5 +/-    0.86  0.060 / 0.110
G12     319.1          61.1                4.3 +/-    0.90       4.8 +/-    0.90  0.080 / 0.130
G17     79.6           16.5                3.5 +/-    2.25       8.3 +/-    2.25  0.090 / 0.110
G19     68.1           31.6                3.0 +/-    1.16       5.1 +/-    1.16  0.100 / 0.110
G24     236.1          28.5                6.2 +/-    0.76      11.2 +/-    0.76  0.020 / 0.040
G25     317.9          21.1                3.5 +/-    2.55       7.4 +/-    2.55  0.040 / 0.030