PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-20:12:50
G10     247.0          22.7               19.3 +/-    2.45      39.8 +/-    2.45  0.100 / 0.320
G13     59.1           33.5               16.6 +/-    0.79      27.1 +/-    0.79  0.130 / 0.310
G15     95.3           57.6               17.9 +/-    0.57      20.8 +/-    0.57  0.120 / 0.430
G16     304.0          13.6               13.5 +/-    2.36      34.7 +/-    2.36  0.150 / 0.370
G18     263.2          53.6               17.9 +/-    0.77      21.7 +/-    0.77  0.040 / 0.050
G20     39.5           52.5               16.3 +/-    0.64      20.0 +/-    0.64  0.030 / 0.050
G21     330.7          58.6               16.2 +/-    0.26      18.6 +/-    0.26  0.050 / 0.130
G26     276.4          16.6               15.0 +/-    2.78      36.0 +/-    2.78  0.050 / 0.110
G29     161.1          49.9               19.5 +/-    0.78      24.6 +/-    0.78  0.050 / 0.060