PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-23:28:00
G08     318.3          13.4                9.0 +/-    2.01      23.2 +/-    2.01  0.050 / 0.040
G10     307.3          54.5                9.3 +/-    0.75      11.2 +/-    0.75  0.060 / 0.040
G14     212.3          20.0               11.0 +/-    3.60      24.1 +/-    3.60  0.090 / 0.110
G15     45.5           22.5                8.5 +/-    2.54      17.5 +/-    2.54  0.090 / 0.100
G18     13.4           64.4               10.0 +/-    1.02      11.0 +/-    1.02  0.050 / 0.070
G20     76.7           13.0                8.3 +/-    1.92      21.7 +/-    1.92  0.040 / 0.060
G21     115.8          67.7               11.4 +/-    0.33      12.2 +/-    0.33  0.130 / 0.330
G24     91.1           29.0               11.7 +/-    1.54      21.0 +/-    1.54  0.130 / 0.400
G27     290.2          37.4                8.8 +/-    3.14      13.3 +/-    3.14  0.110 / 0.250
G32     214.7          36.6               10.7 +/-    1.43      16.6 +/-    1.43  0.110 / 0.220