PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-19:27:50
G10     265.3          38.7                9.4 +/-    1.71      14.0 +/-    1.71  0.050 / 0.030
G13     42.4           18.6                8.1 +/-    2.79      18.4 +/-    2.79  0.040 / 0.050
G15     61.1           50.1                9.5 +/-    0.80      12.0 +/-    0.80  0.160 / 0.520
G16     280.3          13.3                8.3 +/-    2.61      21.5 +/-    2.61  0.480 / 0.370
G20     296.3          60.2                8.6 +/-    0.80       9.8 +/-    0.80  0.030 / 0.040
G21     357.1          70.0                9.9 +/-    0.78      10.4 +/-    0.78  0.030 / 0.050
G24     123.8          12.9               12.7 +/-    2.96      33.1 +/-    2.96  0.150 / 0.200
G27     319.7          17.0                9.0 +/-    1.67      21.2 +/-    1.67  0.150 / 0.270
G29     167.1          34.1               10.8 +/-    0.98      17.4 +/-    0.98  0.140 / 0.310