PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-21:28:00
G10     255.8          31.0               12.6 +/-    1.38      21.6 +/-    1.38  0.110 / 0.530
G13     48.6           26.1                9.0 +/-    1.76      17.1 +/-    1.76  0.130 / 0.470
G15     83.2           59.3               10.3 +/-    0.88      11.8 +/-    0.88  0.040 / 0.040
G16     289.1          15.1                8.4 +/-    2.02      20.8 +/-    2.02  0.050 / 0.040
G20     278.1          54.4                9.5 +/-    3.33      11.4 +/-    3.33  0.140 / 0.170
G21     341.4          64.1               10.0 +/-    0.76      11.0 +/-    0.76  0.080 / 0.300
G26     262.0          13.1               11.1 +/-    1.80      28.8 +/-    1.80  0.030 / 0.040
G29     166.4          44.1               12.8 +/-    0.65      17.5 +/-    0.65  0.030 / 0.040