PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-16:27:40
G10     266.4          38.2                9.0 +/-    0.98      13.5 +/-    0.98  0.310 / 0.510
G13     42.1           18.5                7.0 +/-    3.05      16.0 +/-    3.05  0.210 / 0.530
G15     61.5           51.1                7.6 +/-    0.96       9.5 +/-    0.96  0.150 / 0.300
G16     280.6          12.3                7.3 +/-    1.83      19.2 +/-    1.83  0.180 / 0.330
G20     296.4          60.1                8.9 +/-    0.89      10.1 +/-    0.89  0.040 / 0.040
G21     8.2            72.2                8.3 +/-    0.72       8.7 +/-    0.72  0.040 / 0.040
G24     117.0          14.3                9.1 +/-    1.65      23.2 +/-    1.65  0.270 / 0.300
G27     319.9          16.5                7.3 +/-    2.66      17.5 +/-    2.66  0.130 / 0.220
G29     167.1          31.1                9.0 +/-    1.05      15.5 +/-    1.05  0.050 / 0.060