PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-01:28:00
G10     303.9          54.4                7.9 +/-    1.13       9.4 +/-    1.13  0.160 / 0.210
G14     210.8          14.0               11.0 +/-    2.84      28.0 +/-    2.84  0.100 / 0.160
G15     45.7           24.6                6.5 +/-    2.13      12.8 +/-    2.13  0.060 / 0.050
G20     359.3          65.0                8.0 +/-    0.56       8.7 +/-    0.56  0.060 / 0.040
G21     104.6          72.5                9.0 +/-    0.70       9.4 +/-    0.70  0.040 / 0.040
G24     94.8           27.7                7.2 +/-    1.27      13.2 +/-    1.27  0.040 / 0.040
G27     297.8          35.3                8.4 +/-    3.25      13.2 +/-    3.25  0.230 / 0.470
G32     211.8          33.8               11.0 +/-    1.97      17.9 +/-    1.97  0.190 / 0.610