PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-17:28:10
G01     320.6          14.3               -7.8 +/-   28.89     -19.7 +/-   28.89  0.180 / 0.180
G08     263.3          17.1                9.6 +/-    0.90      22.6 +/-    0.90  0.110 / 0.260
G10     69.4           55.0                8.9 +/-    1.17      10.6 +/-    1.17  0.040 / 0.040
G11     312.2          15.8                4.4 +/-    3.54      10.6 +/-    3.54  0.040 / 0.050
G14     267.3          64.7                9.2 +/-    0.89      10.1 +/-    0.89  0.150 / 0.370
G20     100.4          31.1                7.7 +/-    2.04      13.1 +/-    2.04  0.140 / 0.390
G21     155.4          11.5               10.1 +/-    4.45      27.3 +/-    4.45  0.110 / 0.190
G27     229.0          14.1               10.5 +/-    1.59      26.7 +/-    1.59  0.130 / 0.160
G31     178.0          33.1               10.3 +/-    1.34      16.9 +/-    1.34  0.030 / 0.030
G32     355.6          71.9                8.0 +/-    0.31       8.4 +/-    0.31  0.030 / 0.030