PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-21:43:10
G10     247.3          23.0               16.6 +/-    2.36      34.0 +/-    2.36  0.030 / 0.060
G13     58.8           33.5               12.9 +/-    0.80      21.0 +/-    0.80  0.060 / 0.050
G15     95.7           57.9               16.0 +/-    0.31      18.6 +/-    0.31  0.140 / 0.350
G16     302.6          14.0               11.7 +/-    2.18      29.9 +/-    2.18  0.140 / 0.370
G18     263.4          53.4               15.4 +/-    0.68      18.7 +/-    0.68  0.110 / 0.360
G20     40.3           51.5               12.8 +/-    0.91      15.9 +/-    0.91  0.110 / 0.390
G21     330.0          58.3               14.0 +/-    0.71      16.1 +/-    0.71  0.050 / 0.060
G26     275.0          16.6               14.1 +/-    1.90      33.6 +/-    1.90  0.060 / 0.070
G29     161.9          50.5               15.6 +/-    0.58      19.6 +/-    0.58  0.040 / 0.170