PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-22:27:40
G10     265.2          38.4               10.6 +/-    1.64      15.8 +/-    1.64  0.120 / 0.190
G13     42.4           18.7                7.6 +/-    1.16      17.2 +/-    1.16  0.130 / 0.160
G15     61.5           50.4               10.1 +/-    1.03      12.6 +/-    1.03  0.130 / 0.390
G16     281.1          13.1                8.0 +/-    1.44      20.7 +/-    1.44  0.120 / 0.360
G20     294.3          59.3                9.6 +/-    1.02      11.0 +/-    1.02  0.040 / 0.050
G21     356.6          69.9                8.8 +/-    0.42       9.3 +/-    0.42  0.040 / 0.040
G24     123.2          12.9                9.9 +/-    2.68      25.8 +/-    2.68  0.060 / 0.080
G27     319.8          16.7                6.7 +/-    1.20      15.9 +/-    1.20  0.070 / 0.080
G29     166.7          33.4               11.5 +/-    1.69      18.8 +/-    1.69  0.130 / 0.440