PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-17:12:50
G02     10.4           70.8               15.1 +/-    0.91      15.9 +/-    0.91  0.030 / 0.040
G05     163.5          42.1               18.9 +/-    1.43      26.6 +/-    1.43  0.030 / 0.040
G06     45.4           30.8               13.0 +/-    0.62      22.5 +/-    0.62  0.060 / 0.080
G12     268.8          79.4               11.2 +/-    0.96      11.3 +/-    0.96  0.070 / 0.090
G19     86.6           18.7               15.0 +/-    0.88      34.2 +/-    0.88  0.040 / 0.070
G20     197.6          10.1               -5.2 +/-   26.10     -14.6 +/-   26.10  0.030 / 0.060
G24     221.4          15.2               20.0 +/-    9.36      49.4 +/-    9.36  0.040 / 0.050
G25     312.5          42.7               15.3 +/-    1.41      21.3 +/-    1.41  0.040 / 0.040
G29     296.4          18.9               16.3 +/-    9.44      36.7 +/-    9.44  0.060 / 0.080