PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-20:27:30
G10     266.6          39.4               13.2 +/-    1.28      19.4 +/-    1.28  0.040 / 0.040
G13     41.8           17.7               10.0 +/-    2.82      23.4 +/-    2.82  0.050 / 0.040
G15     60.4           49.9               12.7 +/-    0.42      16.0 +/-    0.42  0.170 / 0.300
G16     279.3          12.9               12.0 +/-    2.57      31.4 +/-    2.57  0.090 / 0.330
G20     298.0          60.5               12.2 +/-    1.06      13.8 +/-    1.06  0.030 / 0.040
G21     359.4          70.7               13.6 +/-    0.66      14.3 +/-    0.66  0.030 / 0.050
G24     122.6          13.6               15.9 +/-    2.32      40.9 +/-    2.32  0.170 / 0.150
G27     319.3          17.9               11.7 +/-    2.45      27.1 +/-    2.45  0.120 / 0.160
G29     167.2          32.6               14.5 +/-    1.20      24.0 +/-    1.20  0.150 / 0.440