PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-19:58:00
G01     248.0          33.7               11.0 +/-    1.45      17.9 +/-    1.45  0.040 / 0.030
G03     315.1          47.9                9.7 +/-    1.25      12.6 +/-    1.25  0.040 / 0.040
G11     236.5          11.3               10.6 +/-    1.69      28.8 +/-    1.69  0.040 / 0.030
G14     62.9           39.5                9.8 +/-    0.76      14.3 +/-    0.76  0.020 / 0.040
G16     163.3          19.8                4.1 +/-   20.98       9.1 +/-   20.98  0.100 / 0.220
G22     300.3          68.8                9.6 +/-    1.06      10.2 +/-    1.06  0.100 / 0.220
G23     288.9          21.2                9.9 +/-    2.56      21.1 +/-    2.56  0.080 / 0.120
G26     134.3          40.2               14.1 +/-    0.75      20.5 +/-    0.75  0.130 / 0.110
G31     40.2           56.1                8.3 +/-    0.51       9.8 +/-    0.51  0.090 / 0.150
G32     79.8           21.1                9.7 +/-    2.04      20.7 +/-    2.04  0.070 / 0.130