PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-21:57:40
G03     216.2          59.7                9.0 +/-    1.76      10.2 +/-    1.76  0.070 / 0.080
G07     256.4          15.1               10.0 +/-    4.01      24.8 +/-    4.01  0.070 / 0.080
G09     312.0          33.0                7.4 +/-    1.04      12.2 +/-    1.04  0.250 / 0.540
G14     107.4          9.8                 9.6 +/-    3.29      26.8 +/-    3.29  0.240 / 0.650
G16     94.1           62.9                8.8 +/-    1.27       9.8 +/-    1.27  0.040 / 0.040
G22     190.7          42.8               10.0 +/-    0.86      13.9 +/-    0.86  0.050 / 0.040
G23     328.8          58.8                8.3 +/-    0.49       9.6 +/-    0.49  0.050 / 0.050
G26     54.8           43.9                6.9 +/-    1.13       9.4 +/-    1.13  0.060 / 0.040
G31     58.9           11.0                6.7 +/-    2.29      18.3 +/-    2.29  0.030 / 0.050