PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-22:13:00
G10     298.0          51.6               15.0 +/-    1.88      18.6 +/-    1.88  0.060 / 0.050
G14     210.4          14.2               18.8 +/-    2.19      47.8 +/-    2.19  0.030 / 0.050
G15     45.9           27.5                9.2 +/-    1.71      17.0 +/-    1.71  0.060 / 0.130
G18     1.0            65.8               13.2 +/-    0.28      14.4 +/-    0.28  0.070 / 0.110
G20     72.2           17.3                9.5 +/-    1.26      22.4 +/-    1.26  0.070 / 0.110
G21     102.4          71.8               13.9 +/-    0.69      14.6 +/-    0.69  0.070 / 0.160
G24     98.0           26.9               14.7 +/-    0.82      27.4 +/-    0.82  0.080 / 0.210
G27     297.6          35.6               15.1 +/-    1.59      23.7 +/-    1.59  0.090 / 0.300
G32     211.9          30.0               16.7 +/-    3.18      29.3 +/-    3.18  0.060 / 0.080