PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-17:57:50
G10     267.4          37.8               10.0 +/-    1.40      15.1 +/-    1.40  0.140 / 0.230
G13     42.2           19.1                7.9 +/-    0.77      17.7 +/-    0.77  0.080 / 0.250
G15     57.9           47.3                8.9 +/-    0.27      11.6 +/-    0.27  0.180 / 0.300
G16     284.3          10.8               10.4 +/-    2.67      28.5 +/-    2.67  0.120 / 0.270
G18     304.9          65.4                8.2 +/-    0.62       8.9 +/-    0.62  0.060 / 0.130
G20     54.1           35.8                8.2 +/-    1.68      12.8 +/-    1.68  0.070 / 0.100
G21     17.7           73.6               10.4 +/-    0.89      10.8 +/-    0.89  0.040 / 0.040
G24     121.1          14.2               15.3 +/-    2.25      38.7 +/-    2.25  0.040 / 0.050
G27     317.6          20.5                8.4 +/-    3.47      18.2 +/-    3.47  0.170 / 0.620
G29     165.6          25.3               11.5 +/-    1.19      22.2 +/-    1.19  0.170 / 0.650