PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-17:27:50
G08     265.5          18.1                8.3 +/-    1.21      19.2 +/-    1.21  0.260 / 0.260
G10     65.5           56.1                9.3 +/-    1.28      11.0 +/-    1.28  0.170 / 0.210
G11     313.7          14.4                5.4 +/-    4.50      13.6 +/-    4.50  0.050 / 0.050
G14     262.5          63.3                9.7 +/-    1.18      10.7 +/-    1.18  0.040 / 0.050
G20     98.3           32.7                7.8 +/-    0.93      13.0 +/-    0.93  0.030 / 0.030
G21     155.1          13.7                9.3 +/-    3.58      23.7 +/-    3.58  0.040 / 0.030
G24     40.0           10.0                7.0 +/-    3.23      19.5 +/-    3.23  0.090 / 0.150
G27     230.7          15.6                9.9 +/-    3.40      24.3 +/-    3.40  0.110 / 0.170
G31     178.4          30.8                9.9 +/-    1.11      17.1 +/-    1.11  0.120 / 0.280
G32     349.1          73.4                8.4 +/-    0.34       8.8 +/-    0.34  0.100 / 0.300