PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-00:28:10
G08     299.9          22.5               11.3 +/-    1.30      23.4 +/-    1.30  0.040 / 0.060
G10     347.7          61.9               10.2 +/-    0.75      11.4 +/-    0.75  0.030 / 0.070
G14     223.8          40.7               14.6 +/-    0.90      21.0 +/-    0.90  0.050 / 0.090
G18     51.8           55.6               11.5 +/-    0.39      13.6 +/-    0.39  0.050 / 0.160
G21     141.1          47.3               14.6 +/-    0.69      19.0 +/-    0.69  0.020 / 0.040
G24     65.5           29.4               11.8 +/-    0.43      21.0 +/-    0.43  0.030 / 0.050
G27     261.7          35.1               12.3 +/-    1.43      19.5 +/-    1.43  0.090 / 0.100
G32     232.5          58.1               13.9 +/-    1.08      16.1 +/-    1.08  0.050 / 0.120