PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-22:57:40
G03     222.0          63.1                8.1 +/-    0.75       9.0 +/-    0.75  0.080 / 0.190
G07     253.6          14.0                9.0 +/-    0.80      22.9 +/-    0.80  0.110 / 0.220
G09     308.4          26.1                6.1 +/-    2.45      11.7 +/-    2.45  0.040 / 0.080
G16     112.0          63.1               -2.1 +/-    0.76      -2.3 +/-    0.76  0.040 / 0.060
G22     191.8          47.7                8.9 +/-    1.69      11.6 +/-    1.69  0.040 / 0.040
G23     323.4          53.4                8.2 +/-    0.50      10.0 +/-    0.50  0.040 / 0.050
G26     61.1           49.1                6.4 +/-    0.51       8.1 +/-    0.51  0.040 / 0.060
G31     55.3           17.1                3.8 +/-    1.53       8.9 +/-    1.53  0.040 / 0.060