PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-03:27:40
G01     297.7          38.1               10.2 +/-    1.49      15.3 +/-    1.49  0.050 / 0.070
G10     114.6          34.3                9.7 +/-    0.61      15.7 +/-    0.61  0.070 / 0.060
G11     269.5          28.5                8.7 +/-    1.64      15.7 +/-    1.64  0.050 / 0.080
G14     17.8           61.2                8.2 +/-    0.97       9.2 +/-    0.97  0.040 / 0.090
G22     312.3          33.0                7.2 +/-    0.97      11.8 +/-    0.97  0.070 / 0.090
G25     69.5           17.6                9.2 +/-    1.67      21.6 +/-    1.67  0.090 / 0.090
G31     158.3          73.6               11.6 +/-    0.57      12.0 +/-    0.57  0.020 / 0.030
G32     43.2           48.0                7.5 +/-    1.27       9.7 +/-    1.27  0.030 / 0.020