PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-05:42:40
G02     351.9          78.2                3.0 +/-    0.50       3.0 +/-    0.50  0.100 / 0.190
G05     163.5          33.8                8.0 +/-    0.98      13.0 +/-    0.98  0.080 / 0.210
G06     40.9           42.9                3.7 +/-    0.58       5.2 +/-    0.58  0.040 / 0.060
G12     312.8          69.1                3.9 +/-    0.83       4.2 +/-    0.83  0.040 / 0.050
G17     85.2           13.2                4.8 +/-    2.03      12.3 +/-    2.03  0.030 / 0.040
G19     74.8           27.4                3.5 +/-    1.50       6.5 +/-    1.50  0.030 / 0.030
G24     229.5          23.3                6.0 +/-    2.19      12.2 +/-    2.19  0.060 / 0.080
G25     317.5          27.6                0.5 +/-    1.02       0.9 +/-    1.02  0.050 / 0.090