PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/28-15:58:00
G01     248.1          34.5               10.5 +/-    1.64      16.8 +/-    1.64  0.110 / 0.100
G03     315.6          48.5                5.8 +/-    1.24       7.4 +/-    1.24  0.080 / 0.080
G14     63.0           38.7                5.6 +/-    0.86       8.3 +/-    0.86  0.050 / 0.110
G16     165.4          17.3               -4.4 +/-   15.20     -10.3 +/-   15.20  0.050 / 0.080
G18     215.8          24.4                9.3 +/-    3.07      18.4 +/-    3.07  0.050 / 0.070
G22     298.6          70.6                5.2 +/-    0.70       5.5 +/-    0.70  0.050 / 0.080
G23     287.8          19.7                7.7 +/-    1.82      17.0 +/-    1.82  0.060 / 0.090
G26     140.5          38.0                8.2 +/-    1.07      12.4 +/-    1.07  0.090 / 0.080
G31     40.4           59.4                5.1 +/-    0.62       5.8 +/-    0.62  0.150 / 0.230
G32     77.3           24.6                6.7 +/-    1.39      13.1 +/-    1.39  0.150 / 0.250