PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-18:12:30
G10     266.7          39.5               10.4 +/-    1.27      15.3 +/-    1.27  0.110 / 0.160
G13     41.8           17.6                9.1 +/-    3.39      21.2 +/-    3.39  0.120 / 0.130
G15     58.9           48.3                8.5 +/-    0.94      11.0 +/-    0.94  0.040 / 0.050
G20     299.6          61.1                9.8 +/-    0.84      11.0 +/-    0.84  0.040 / 0.050
G21     0.5            70.9                9.8 +/-    0.64      10.3 +/-    0.64  0.150 / 0.260
G24     122.9          13.6               10.0 +/-    4.13      25.8 +/-    4.13  0.090 / 0.310
G27     319.2          18.1                9.6 +/-    2.24      22.1 +/-    2.24  0.120 / 0.260
G29     167.3          33.0                9.1 +/-    1.26      14.9 +/-    1.26  0.200 / 0.290