PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/30-19:12:40
G01     308.9          31.7               10.0 +/-    2.05      17.0 +/-    2.05  0.080 / 0.120
G10     103.6          42.1               11.5 +/-    0.64      16.2 +/-    0.64  0.060 / 0.130
G11     285.5          27.8               11.1 +/-    0.72      20.3 +/-    0.72  0.040 / 0.040
G14     351.3          67.9                9.3 +/-    0.33      10.0 +/-    0.33  0.040 / 0.050
G18     116.3          14.2               12.5 +/-    1.28      31.6 +/-    1.28  0.100 / 0.150
G22     308.8          23.9               10.7 +/-    0.80      21.6 +/-    0.80  0.130 / 0.160
G25     84.3           16.0               11.7 +/-    2.50      28.4 +/-    2.50  0.040 / 0.040
G31     170.5          61.8               12.5 +/-    0.38      14.0 +/-    0.38  0.030 / 0.040
G32     33.2           54.4                9.6 +/-    1.37      11.5 +/-    1.37  0.030 / 0.020