PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-23:57:40
G10     273.5          42.9               11.6 +/-    1.72      16.1 +/-    1.72  0.080 / 0.110
G13     39.4           13.1                7.6 +/-    1.78      19.8 +/-    1.78  0.100 / 0.140
G15     54.0           44.3               10.1 +/-    1.23      13.8 +/-    1.23  0.050 / 0.040
G20     307.7          62.0               10.3 +/-    0.81      11.6 +/-    0.81  0.050 / 0.030
G21     15.8           74.4               10.6 +/-    0.76      10.9 +/-    0.76  0.090 / 0.320
G24     116.8          17.2               10.9 +/-    1.58      25.8 +/-    1.58  0.120 / 0.210
G27     316.5          22.3                8.4 +/-    2.03      17.4 +/-    2.03  0.060 / 0.050
G29     167.4          25.3               11.2 +/-    1.98      21.7 +/-    1.98  0.050 / 0.060
G32     205.1          12.9               15.2 +/-    2.06      39.7 +/-    2.06  0.150 / 0.460