PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-00:58:00
G10     250.3          27.9               15.6 +/-    2.11      28.5 +/-    2.11  0.040 / 0.050
G13     53.3           29.0                7.8 +/-    0.74      13.9 +/-    0.74  0.040 / 0.050
G15     85.4           57.1               11.5 +/-    0.36      13.4 +/-    0.36  0.100 / 0.140
G16     297.3          15.2                9.9 +/-    3.55      24.5 +/-    3.55  0.110 / 0.140
G20     269.6          50.4               12.8 +/-    1.02      16.1 +/-    1.02  0.150 / 0.540
G21     333.6          59.6               10.1 +/-    0.81      11.5 +/-    0.81  0.150 / 0.590
G26     269.2          15.5               13.6 +/-    1.57      33.4 +/-    1.57  0.060 / 0.150
G29     162.7          49.0               13.0 +/-    0.90      16.6 +/-    0.90  0.050 / 0.140