PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-23:58:00
G03     253.1          69.6                6.9 +/-    1.05       7.3 +/-    1.05  0.040 / 0.050
G09     302.1          18.3                4.6 +/-    1.48      10.5 +/-    1.48  0.040 / 0.050
G14     96.6           16.5                5.8 +/-    2.14      13.8 +/-    2.14  0.160 / 0.500
G16     133.3          55.6                9.3 +/-    0.55      11.0 +/-    0.55  0.140 / 0.430
G22     200.3          60.0                7.3 +/-    0.67       8.3 +/-    0.67  0.040 / 0.040
G23     314.7          44.1                5.2 +/-    1.17       7.1 +/-    1.17  0.030 / 0.040
G26     77.7           54.1                5.0 +/-    0.30       6.1 +/-    0.30  0.030 / 0.060
G31     49.6           24.8                3.3 +/-    1.09       6.5 +/-    1.09  0.040 / 0.050