PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-19:43:00
G01     247.4          33.3               12.5 +/-    1.29      20.5 +/-    1.29  0.040 / 0.030
G03     314.9          48.6               11.0 +/-    0.93      14.1 +/-    0.93  0.030 / 0.030
G11     236.1          11.0               12.0 +/-    1.86      32.9 +/-    1.86  0.130 / 0.100
G14     63.5           39.3                9.9 +/-    0.88      14.6 +/-    0.88  0.100 / 0.090
G16     162.9          20.5                9.1 +/-   14.43      19.9 +/-   14.43  0.040 / 0.040
G22     299.0          69.4               11.0 +/-    0.94      11.6 +/-    0.94  0.040 / 0.030
G23     289.4          21.7               11.9 +/-    1.03      25.1 +/-    1.03  0.150 / 0.220
G26     133.5          40.7               13.6 +/-    0.85      19.5 +/-    0.85  0.130 / 0.310
G31     40.2           55.3                9.7 +/-    0.39      11.5 +/-    0.39  0.080 / 0.130
G32     80.4           20.7               11.4 +/-    2.15      24.7 +/-    2.15  0.080 / 0.140