PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-17:58:00
G10     256.1          32.7               10.8 +/-    1.45      17.9 +/-    1.45  0.050 / 0.060
G13     48.0           25.0                9.8 +/-    1.10      19.1 +/-    1.10  0.060 / 0.050
G15     73.4           54.9               10.4 +/-    0.37      12.4 +/-    0.37  0.070 / 0.180
G16     289.1          15.4                6.3 +/-    3.60      15.4 +/-    3.60  0.060 / 0.160
G20     280.8          55.9               11.7 +/-    0.66      13.8 +/-    0.66  0.050 / 0.060
G21     341.8          63.8                9.6 +/-    0.40      10.5 +/-    0.40  0.040 / 0.080
G26     262.6          13.0                9.9 +/-    2.20      25.8 +/-    2.20  0.150 / 0.700
G29     165.4          44.3               11.4 +/-    1.26      15.5 +/-    1.26  0.210 / 0.690