PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-21:42:30
G10     307.3          55.4                7.3 +/-    0.72       8.7 +/-    0.72  0.040 / 0.040
G14     211.6          14.3               18.5 +/-    2.05      46.8 +/-    2.05  0.030 / 0.040
G15     45.7           24.5                6.5 +/-    0.84      12.8 +/-    0.84  0.070 / 0.090
G20     7.0            64.5                8.2 +/-    0.50       9.0 +/-    0.50  0.070 / 0.090
G21     109.3          71.4                9.6 +/-    0.97      10.0 +/-    0.97  0.170 / 0.720
G24     93.5           28.5               10.5 +/-    1.28      19.0 +/-    1.28  0.300 / 0.720
G27     295.2          36.2                8.8 +/-    0.92      13.7 +/-    0.92  0.060 / 0.140
G32     212.3          37.2               12.5 +/-    1.16      19.1 +/-    1.16  0.050 / 0.140