PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-15:28:00
G02     243.7          76.1               10.7 +/-    0.74      11.0 +/-    0.74  0.060 / 0.100
G05     174.3          14.7               12.2 +/-    2.27      30.6 +/-    2.27  0.060 / 0.110
G06     40.3           58.4               10.0 +/-    0.47      11.6 +/-    0.47  0.030 / 0.060
G12     321.5          53.0               11.5 +/-    1.48      14.0 +/-    1.48  0.030 / 0.060
G17     73.7           19.3               10.0 +/-    0.93      22.3 +/-    0.93  0.200 / 0.390
G19     60.3           36.1                9.3 +/-    0.52      14.4 +/-    0.52  0.100 / 0.320
G24     245.7          34.3               11.8 +/-    0.97      19.0 +/-    0.97  0.030 / 0.040
G25     317.1          16.1               10.6 +/-    3.27      25.7 +/-    3.27  0.030 / 0.050