PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-08:57:40
G02     223.0          66.1                9.1 +/-    0.48       9.9 +/-    0.48  0.030 / 0.040
G06     47.0           69.9                8.5 +/-    0.34       9.0 +/-    0.34  0.040 / 0.050
G12     320.1          41.7                7.5 +/-    0.68      10.6 +/-    0.68  0.050 / 0.080
G17     64.0           26.0                6.1 +/-    2.87      11.7 +/-    2.87  0.070 / 0.090
G19     44.1           46.8                8.3 +/-    0.59      11.0 +/-    0.59  0.030 / 0.060
G24     250.5          39.8                9.9 +/-    3.79      14.4 +/-    3.79  0.030 / 0.060
G28     126.2          10.5               11.6 +/-    2.23      32.1 +/-    2.23  0.070 / 0.110