PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-01:43:00
G08     303.3          21.7                9.1 +/-    1.53      19.3 +/-    1.53  0.080 / 0.080
G10     340.4          61.1                9.8 +/-    0.40      11.0 +/-    0.40  0.070 / 0.060
G14     221.3          37.6               13.0 +/-    1.54      19.6 +/-    1.54  0.030 / 0.060
G18     45.6           57.7               12.0 +/-    0.49      13.9 +/-    0.49  0.040 / 0.040
G21     138.5          51.4               12.1 +/-    0.72      15.0 +/-    0.72  0.060 / 0.080
G24     69.5           30.1               10.3 +/-    1.07      17.9 +/-    1.07  0.060 / 0.080
G27     266.1          36.3               12.1 +/-    0.76      18.7 +/-    0.76  0.060 / 0.070
G32     228.6          55.6               11.0 +/-    2.40      13.1 +/-    2.40  0.090 / 0.070