PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-00:28:00
G08     279.2          22.4               11.6 +/-    1.28      24.2 +/-    1.28  0.090 / 0.160
G10     32.0           62.7               10.2 +/-    0.77      11.3 +/-    0.77  0.070 / 0.160
G14     244.2          58.3               13.4 +/-    0.67      15.4 +/-    0.67  0.080 / 0.150
G18     77.7           44.7               10.8 +/-    0.36      14.7 +/-    0.36  0.080 / 0.170
G21     150.7          26.9               14.1 +/-    0.56      26.4 +/-    0.56  0.030 / 0.030
G24     47.6           20.5                8.4 +/-    0.62      18.2 +/-    0.62  0.040 / 0.030
G27     241.1          24.3               13.5 +/-    1.43      26.7 +/-    1.43  0.040 / 0.070
G31     182.6          15.3               18.2 +/-    1.96      45.0 +/-    1.96  0.040 / 0.070
G32     273.8          72.8               11.0 +/-    0.74      11.5 +/-    0.74  0.130 / 0.230