PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-06:42:40
G02     349.8          78.7                3.6 +/-    0.81       3.7 +/-    0.81  0.090 / 0.190
G05     164.0          33.0                6.1 +/-    1.23      10.0 +/-    1.23  0.110 / 0.210
G06     40.6           44.2                3.2 +/-    0.99       4.3 +/-    0.99  0.050 / 0.100
G12     313.6          68.3                3.1 +/-    1.16       3.3 +/-    1.16  0.040 / 0.090
G17     85.0           13.0                4.5 +/-    1.67      11.7 +/-    1.67  0.030 / 0.040
G19     74.4           27.6                3.0 +/-    0.67       5.6 +/-    0.67  0.030 / 0.040
G24     230.2          23.8                4.4 +/-    1.95       8.8 +/-    1.95  0.110 / 0.220
G25     317.5          27.2                1.1 +/-    0.83       2.0 +/-    0.83  0.120 / 0.230