PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-22:28:10
G10     300.4          52.4               14.4 +/-    1.16      17.7 +/-    1.16  0.080 / 0.040
G14     210.8          15.8               19.3 +/-    3.63      47.1 +/-    3.63  0.090 / 0.040
G15     45.8           26.1               11.3 +/-    3.26      21.5 +/-    3.26  0.080 / 0.120
G18     4.6            65.5               13.8 +/-    0.94      15.0 +/-    0.94  0.060 / 0.110
G20     73.5           16.1               15.0 +/-    3.80      36.4 +/-    3.80  0.040 / 0.040
G21     106.5          70.8               15.0 +/-    0.57      15.8 +/-    0.57  0.050 / 0.030
G24     96.1           27.6               15.2 +/-    1.61      28.1 +/-    1.61  0.070 / 0.250
G27     295.7          36.1               15.6 +/-    2.15      24.3 +/-    2.15  0.100 / 0.280
G32     212.6          31.7               13.7 +/-    2.90      23.2 +/-    2.90  0.080 / 0.060