PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-19:27:50
G10     247.9          26.1               10.9 +/-    1.16      20.8 +/-    1.16  0.040 / 0.050
G13     55.9           30.4               10.5 +/-    1.03      18.2 +/-    1.03  0.040 / 0.060
G15     93.7           58.1               12.2 +/-    0.91      14.1 +/-    0.91  0.060 / 0.160
G16     298.5          15.9                8.1 +/-    3.46      19.7 +/-    3.46  0.060 / 0.180
G20     266.8          49.6               10.1 +/-    1.22      12.8 +/-    1.22  0.150 / 0.740
G21     329.6          57.2                9.6 +/-    1.02      11.1 +/-    1.02  0.160 / 0.690
G26     271.1          16.6               12.5 +/-    2.33      29.8 +/-    2.33  0.040 / 0.050
G29     162.6          54.4               13.9 +/-    0.84      16.7 +/-    0.84  0.040 / 0.050