PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-22:43:10
G03     210.0          55.4                7.3 +/-    0.52       8.7 +/-    0.52  0.060 / 0.150
G07     260.2          19.4                6.4 +/-    2.08      14.3 +/-    2.08  0.080 / 0.130
G09     312.5          32.6                5.0 +/-    2.35       8.3 +/-    2.35  0.050 / 0.030
G16     90.4           64.7                6.9 +/-    0.76       7.5 +/-    0.76  0.050 / 0.030
G22     188.2          38.7                9.0 +/-    0.85      13.4 +/-    0.85  0.200 / 0.350
G23     330.3          60.6                5.6 +/-    1.07       6.3 +/-    1.07  0.270 / 0.360
G26     52.8           43.4                5.5 +/-    0.91       7.6 +/-    0.91  0.040 / 0.050
G27     134.4          11.8                9.3 +/-    4.20      24.9 +/-    4.20  0.050 / 0.040
G31     60.0           11.7                4.4 +/-    1.38      11.9 +/-    1.38  0.030 / 0.050