PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-21:12:30
G10     287.0          49.0                8.9 +/-    3.44      11.3 +/-    3.44  0.040 / 0.040
G15     48.5           36.6                8.3 +/-    0.91      12.8 +/-    0.91  0.040 / 0.040
G20     334.5          65.1                9.0 +/-    0.67       9.9 +/-    0.67  0.060 / 0.050
G21     58.4           77.3               10.6 +/-    0.90      10.9 +/-    0.90  0.070 / 0.080
G24     107.8          22.9               12.3 +/-    2.18      25.3 +/-    2.18  0.200 / 0.210
G27     309.0          29.8                9.1 +/-    1.17      16.0 +/-    1.17  0.140 / 0.160
G29     168.1          15.8               15.9 +/-    3.01      38.7 +/-    3.01  0.110 / 0.120
G32     207.1          24.0               17.4 +/-    2.13      34.8 +/-    2.13  0.080 / 0.100