PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-19:42:40
G10     268.7          38.5               18.3 +/-    2.49      27.3 +/-    2.49  0.100 / 0.180
G13     41.7           18.3               12.0 +/-    1.38      27.5 +/-    1.38  0.080 / 0.170
G15     57.0           46.9               14.0 +/-    0.39      18.4 +/-    0.39  0.050 / 0.130
G16     282.6          10.5               15.6 +/-    2.62      43.1 +/-    2.62  0.050 / 0.120
G18     306.4          65.4               14.9 +/-    0.67      16.2 +/-    0.67  0.050 / 0.050
G20     55.4           34.1               12.1 +/-    1.22      19.5 +/-    1.22  0.040 / 0.040
G21     16.9           73.8               15.5 +/-    0.92      16.0 +/-    0.92  0.120 / 0.220
G24     120.1          14.9               19.5 +/-    1.26      48.7 +/-    1.26  0.100 / 0.210
G27     317.0          21.5               11.2 +/-    4.55      23.8 +/-    4.55  0.130 / 0.620
G29     165.7          23.9               17.3 +/-    2.98      34.6 +/-    2.98  0.150 / 0.610