PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/16-20:27:50
G10     279.2          44.0               11.4 +/-    0.74      15.6 +/-    0.74  0.060 / 0.140
G13     38.6           11.0               13.3 +/-    4.14      36.2 +/-    4.14  0.070 / 0.130
G15     50.4           39.4               13.0 +/-    0.58      19.1 +/-    0.58  0.080 / 0.180
G18     328.2          66.9               11.7 +/-    0.70      12.6 +/-    0.70  0.080 / 0.160
G20     62.0           27.2               11.8 +/-    0.65      21.9 +/-    0.65  0.080 / 0.170
G21     51.3           76.4               13.7 +/-    0.49      14.1 +/-    0.49  0.080 / 0.150
G24     112.1          20.2               16.1 +/-    1.72      35.3 +/-    1.72  0.040 / 0.050
G27     311.1          28.1               11.3 +/-    0.92      20.6 +/-    0.92  0.030 / 0.040
G29     166.3          15.2               16.3 +/-    1.68      40.4 +/-    1.68  0.150 / 0.700
G32     207.3          16.7               15.0 +/-    1.67      35.8 +/-    1.67  0.230 / 0.870