PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-16:57:50
G02     0.3            74.7               14.7 +/-    0.62      15.2 +/-    0.62  0.030 / 0.040
G05     165.8          37.1               17.9 +/-    1.77      27.3 +/-    1.77  0.030 / 0.040
G06     43.6           35.1               11.3 +/-    0.57      17.9 +/-    0.57  0.060 / 0.080
G12     293.8          76.9               12.5 +/-    0.81      12.8 +/-    0.81  0.060 / 0.090
G19     82.4           21.6               12.0 +/-    2.87      25.4 +/-    2.87  0.150 / 0.320
G24     224.9          18.6               16.8 +/-    1.80      38.3 +/-    1.80  0.160 / 0.390
G25     315.0          38.2               14.8 +/-    0.97      22.1 +/-    0.97  0.040 / 0.070
G29     292.7          15.8               10.7 +/-    1.12      26.1 +/-    1.12  0.030 / 0.080