PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-15:28:00
G10     267.1          38.7               10.3 +/-    1.25      15.3 +/-    1.25  0.060 / 0.080
G13     41.8           18.0                8.1 +/-    1.01      18.7 +/-    1.01  0.060 / 0.080
G15     60.3           50.2               10.1 +/-    0.31      12.7 +/-    0.31  0.040 / 0.050
G16     280.5          12.1                6.7 +/-    2.66      17.8 +/-    2.66  0.040 / 0.050
G20     297.7          60.4               10.6 +/-    0.64      12.0 +/-    0.64  0.170 / 0.250
G21     12.3           72.8               10.9 +/-    1.12      11.4 +/-    1.12  0.120 / 0.160
G24     116.0          14.7               15.7 +/-    1.14      39.5 +/-    1.14  0.110 / 0.170
G27     319.7          16.8                5.8 +/-    1.59      13.7 +/-    1.59  0.090 / 0.130
G29     166.9          30.0               12.4 +/-    0.91      21.6 +/-    0.91  0.100 / 0.230