PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-23:27:40
G10     288.5          48.1               13.3 +/-    3.32      17.2 +/-    3.32  0.130 / 0.130
G15     47.6           34.2               14.4 +/-    0.80      23.3 +/-    0.80  0.150 / 0.130
G18     343.6          66.8               14.9 +/-    0.31      16.0 +/-    0.31  0.040 / 0.030
G20     67.6           21.2               13.0 +/-    2.59      27.8 +/-    2.59  0.040 / 0.030
G21     77.4           76.0               16.0 +/-    1.09      16.5 +/-    1.09  0.100 / 0.140
G24     105.0          24.0               15.2 +/-    1.00      30.4 +/-    1.00  0.080 / 0.150
G27     304.7          32.5               14.5 +/-    2.48      24.2 +/-    2.48  0.070 / 0.170
G32     209.2          24.3               18.2 +/-    1.31      36.2 +/-    1.31  0.070 / 0.200