PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-22:27:50
G10     265.2          38.4                9.2 +/-    1.62      13.7 +/-    1.62  0.110 / 0.320
G13     42.4           18.7                8.4 +/-    2.99      19.1 +/-    2.99  0.190 / 0.360
G15     61.5           50.4                8.8 +/-    0.90      11.1 +/-    0.90  0.040 / 0.040
G16     281.1          13.1                6.9 +/-    1.54      18.0 +/-    1.54  0.040 / 0.040
G20     294.3          59.3                9.1 +/-    1.00      10.4 +/-    1.00  0.160 / 0.450
G21     356.6          69.9                8.6 +/-    1.08       9.1 +/-    1.08  0.330 / 0.450
G24     123.2          12.9               11.8 +/-    2.37      30.9 +/-    2.37  0.030 / 0.040
G27     319.8          16.7                7.7 +/-    2.48      18.4 +/-    2.48  0.030 / 0.040
G29     166.7          33.4               10.3 +/-    0.94      16.9 +/-    0.94  0.060 / 0.070