PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-07:57:40
G02     268.6          81.4                5.8 +/-    0.45       5.8 +/-    0.45  0.080 / 0.160
G05     169.5          21.0                5.1 +/-    1.51      11.0 +/-    1.51  0.050 / 0.160
G06     39.0           57.7                4.7 +/-    0.39       5.4 +/-    0.39  0.090 / 0.120
G12     320.8          55.5                5.7 +/-    1.22       6.7 +/-    1.22  0.080 / 0.140
G17     75.4           19.3                5.0 +/-    0.93      11.1 +/-    0.93  0.120 / 0.110
G19     63.1           34.7                3.7 +/-    0.72       6.0 +/-    0.72  0.110 / 0.110
G24     241.3          32.0                8.2 +/-    0.97      13.9 +/-    0.97  0.040 / 0.040
G25     317.5          16.5                4.8 +/-    2.25      11.6 +/-    2.25  0.030 / 0.040