PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-20:27:50
G10     257.2          33.3               11.7 +/-    1.49      19.2 +/-    1.49  0.060 / 0.060
G13     47.2           24.3                8.8 +/-    0.96      17.5 +/-    0.96  0.060 / 0.060
G15     74.1           55.9                8.3 +/-    0.20       9.9 +/-    0.20  0.120 / 0.370
G16     288.3          15.1                7.4 +/-    5.51      18.5 +/-    5.51  0.060 / 0.220
G20     281.5          55.8               11.7 +/-    0.89      13.9 +/-    0.89  0.070 / 0.240
G21     342.8          64.4                9.4 +/-    1.02      10.3 +/-    1.02  0.040 / 0.040
G26     261.6          12.5               11.5 +/-    2.91      30.4 +/-    2.91  0.040 / 0.050
G27     322.2          10.4              -14.0 +/-   21.70     -38.6 +/-   21.70  0.180 / 0.560
G29     165.5          42.5               11.8 +/-    0.95      16.5 +/-    0.95  0.140 / 0.500