PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-16:57:40
G01     321.0          11.9               -1.3 +/-   28.73      -3.6 +/-   28.73  0.170 / 0.190
G08     265.8          18.4                8.8 +/-    1.27      20.2 +/-    1.27  0.290 / 0.270
G10     64.5           56.3                8.3 +/-    1.13       9.7 +/-    1.13  0.050 / 0.040
G14     261.6          63.1                9.5 +/-    0.87      10.5 +/-    0.87  0.040 / 0.040
G20     97.8           32.9                8.3 +/-    1.72      13.7 +/-    1.72  0.180 / 0.360
G21     155.0          14.1               13.9 +/-    5.45      35.2 +/-    5.45  0.110 / 0.300
G24     40.2           10.4                5.4 +/-    3.34      15.1 +/-    3.34  0.100 / 0.200
G27     231.1          16.1               10.0 +/-    4.67      24.2 +/-    4.67  0.080 / 0.170
G31     178.7          29.9               11.0 +/-    1.48      19.4 +/-    1.48  0.030 / 0.030
G32     347.5          73.7                8.4 +/-    0.32       8.7 +/-    0.32  0.030 / 0.030