PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/28-08:43:00
G05     50.9           11.7                1.2 +/-    2.37       3.1 +/-    2.37  0.050 / 0.050
G10     239.7          17.5                6.9 +/-    2.28      16.2 +/-    2.28  0.030 / 0.050
G13     68.2           34.9                3.7 +/-    1.03       5.9 +/-    1.03  0.050 / 0.110
G15     113.4          55.4                6.1 +/-    0.47       7.3 +/-    0.47  0.050 / 0.100
G16     313.5          11.5                1.5 +/-    8.80       4.0 +/-    8.80  0.170 / 0.160
G20     253.7          41.4                7.3 +/-    2.21      10.4 +/-    2.21  0.110 / 0.130
G21     323.4          53.9                5.4 +/-    0.46       6.5 +/-    0.46  0.280 / 0.400
G26     287.0          18.1                4.3 +/-    1.06      10.0 +/-    1.06  0.390 / 0.520
G29     154.9          60.9                7.4 +/-    0.69       8.4 +/-    0.69  0.140 / 0.120