PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-23:58:10
G03     251.6          69.5                7.0 +/-    1.62       7.5 +/-    1.62  0.180 / 0.280
G09     302.4          18.6                5.5 +/-    2.76      12.6 +/-    2.76  0.170 / 0.250
G14     96.9           16.3                5.9 +/-    1.56      14.3 +/-    1.56  0.050 / 0.040
G16     132.6          56.0                8.1 +/-    1.11       9.5 +/-    1.11  0.040 / 0.040
G22     199.9          59.6                8.6 +/-    0.55       9.8 +/-    0.55  0.050 / 0.040
G23     315.0          44.5                5.9 +/-    0.80       8.0 +/-    0.80  0.050 / 0.040
G26     76.9           54.0                5.2 +/-    0.72       6.2 +/-    0.72  0.050 / 0.030
G31     49.8           24.5                3.8 +/-    2.07       7.5 +/-    2.07  0.040 / 0.030