PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-23:27:50
G10     261.5          34.9               12.6 +/-    1.34      20.1 +/-    1.34  0.150 / 0.240
G13     44.6           22.1                8.6 +/-    2.20      18.0 +/-    2.20  0.140 / 0.240
G15     69.1           55.1               10.0 +/-    0.70      11.9 +/-    0.70  0.050 / 0.040
G16     282.4          14.0                9.7 +/-    1.50      24.7 +/-    1.50  0.040 / 0.030
G20     265.8          31.8               16.7 +/-    1.82      28.1 +/-    1.82  0.260 / 0.510
G21     349.1          67.8                9.5 +/-    0.57      10.1 +/-    0.57  0.170 / 0.450
G24     123.2          11.3               10.8 +/-    2.63      29.4 +/-    2.63  0.250 / 0.340
G27     320.8          14.4                7.6 +/-    3.07      19.3 +/-    3.07  0.210 / 0.340
G29     167.7          38.0               10.8 +/-    1.70      16.2 +/-    1.70  0.280 / 0.260