PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-18:13:10
G10     266.1          38.0               11.0 +/-    1.85      16.5 +/-    1.85  0.360 / 0.510
G13     42.2           18.7                8.0 +/-    4.12      18.3 +/-    4.12  0.270 / 0.670
G15     62.8           52.3                8.0 +/-    0.84       9.8 +/-    0.84  0.140 / 0.300
G16     280.1          12.5                8.8 +/-    2.31      23.4 +/-    2.31  0.120 / 0.310
G20     295.9          59.9                8.5 +/-    1.15       9.7 +/-    1.15  0.040 / 0.040
G21     4.4            71.7                9.1 +/-    0.82       9.5 +/-    0.82  0.040 / 0.030
G24     117.8          14.1               10.0 +/-    2.62      25.4 +/-    2.62  0.220 / 0.260
G27     319.8          16.7                9.6 +/-    2.55      23.0 +/-    2.55  0.150 / 0.240
G29     167.4          32.0                8.9 +/-    1.06      15.0 +/-    1.06  0.170 / 0.400