PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-17:12:50
G08     264.8          17.8                7.0 +/-    1.05      16.3 +/-    1.05  0.120 / 0.230
G10     66.6           55.8                8.0 +/-    1.30       9.4 +/-    1.30  0.320 / 0.410
G11     313.4          14.7                3.4 +/-    3.32       8.6 +/-    3.32  0.040 / 0.040
G14     263.9          63.8                8.0 +/-    0.70       8.8 +/-    0.70  0.040 / 0.040
G20     98.9           32.2                5.9 +/-    1.36       9.9 +/-    1.36  0.030 / 0.030
G21     155.2          13.0                8.1 +/-    2.48      21.2 +/-    2.48  0.030 / 0.030
G27     230.2          15.2                9.3 +/-    2.12      23.1 +/-    2.12  0.090 / 0.180
G31     178.4          31.3               10.3 +/-    1.74      17.5 +/-    1.74  0.140 / 0.210
G32     351.1          73.0                6.5 +/-    0.42       6.7 +/-    0.42  0.110 / 0.320