PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-10:58:00
G10     298.1          52.4                3.3 +/-    1.69       4.1 +/-    1.69  0.030 / 0.040
G14     209.8          12.4               -0.4 +/-    6.59      -1.1 +/-    6.59  0.030 / 0.040
G15     46.0           27.5                1.6 +/-    1.56       3.0 +/-    1.56  0.150 / 0.680
G20     353.0          65.3                3.9 +/-    0.60       4.3 +/-    0.60  0.120 / 0.340
G21     103.3          70.0                5.2 +/-    0.85       5.5 +/-    0.85  0.070 / 0.060
G24     95.2           26.2                5.1 +/-    1.26       9.6 +/-    1.26  0.090 / 0.060
G27     302.7          32.7                3.1 +/-    1.49       5.1 +/-    1.49  0.160 / 0.110
G32     211.0          28.5                4.0 +/-    1.45       7.2 +/-    1.45  0.110 / 0.180