PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/15-22:43:00
G03     232.2          66.7                6.8 +/-    0.60       7.3 +/-    0.60  0.080 / 0.350
G07     250.0          10.8                1.3 +/-   23.02       3.5 +/-   23.02  0.080 / 0.340
G09     305.7          22.3                5.3 +/-    3.84      11.0 +/-    3.84  0.050 / 0.070
G14     102.0          12.0                7.9 +/-    2.03      21.1 +/-    2.03  0.040 / 0.060
G16     123.1          60.5                9.6 +/-    0.53      10.8 +/-    0.53  0.120 / 0.470
G22     194.4          52.8                9.1 +/-    1.09      11.1 +/-    1.09  0.120 / 0.550
G23     319.7          49.4                5.9 +/-    1.15       7.5 +/-    1.15  0.050 / 0.040
G26     67.8           52.0                6.2 +/-    0.40       7.7 +/-    0.40  0.050 / 0.040
G31     52.6           20.8                3.0 +/-    0.63       6.4 +/-    0.63  0.040 / 0.050