PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-18:12:40
G05     50.5           14.6               13.7 +/-    1.06      34.3 +/-    1.06  0.080 / 0.200
G10     239.8          15.6               20.0 +/-    2.28      49.0 +/-    2.28  0.080 / 0.180
G13     70.4           36.7               14.4 +/-    0.86      22.2 +/-    0.86  0.040 / 0.050
G15     113.7          55.1               16.4 +/-    0.49      19.5 +/-    0.49  0.040 / 0.050
G16     314.0          11.1                7.9 +/-    4.80      21.5 +/-    4.80  0.110 / 0.240
G18     251.5          47.3               15.5 +/-    0.93      20.2 +/-    0.93  0.130 / 0.210
G20     31.3           62.1               14.4 +/-    1.06      16.0 +/-    1.06  0.040 / 0.060
G21     320.9          52.9               14.2 +/-    1.01      17.3 +/-    1.01  0.040 / 0.070
G26     286.7          18.5               12.8 +/-    0.84      29.3 +/-    0.84  0.220 / 0.610
G29     155.9          59.5               17.4 +/-    0.90      19.8 +/-    0.90  0.250 / 0.630