PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-16:43:10
G10     266.2          38.1                9.6 +/-    1.35      14.4 +/-    1.35  0.230 / 0.330
G13     42.2           18.6                8.6 +/-    3.57      19.5 +/-    3.57  0.270 / 0.570
G15     61.9           51.4                9.1 +/-    0.96      11.2 +/-    0.96  0.110 / 0.300
G16     280.7          12.4                7.8 +/-    2.33      20.6 +/-    2.33  0.150 / 0.200
G20     296.1          60.0                9.2 +/-    0.93      10.5 +/-    0.93  0.040 / 0.030
G21     7.2            72.1                9.8 +/-    0.63      10.2 +/-    0.63  0.040 / 0.040
G24     117.2          14.2                9.4 +/-    2.26      23.9 +/-    2.26  0.180 / 0.150
G27     319.9          16.4               13.4 +/-    4.55      32.2 +/-    4.55  0.280 / 0.270
G29     167.1          31.4               10.7 +/-    1.03      18.1 +/-    1.03  0.150 / 0.450