PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-21:13:00
G01     223.4          14.5                9.9 +/-    2.27      25.0 +/-    2.27  0.130 / 0.210
G03     276.4          69.6                9.9 +/-    0.66      10.5 +/-    0.66  0.150 / 0.280
G09     296.7          11.3               -2.9 +/-   29.76      -8.0 +/-   29.76  0.270 / 0.280
G14     90.1           21.2                8.9 +/-    1.38      19.1 +/-    1.38  0.140 / 0.220
G16     145.0          47.7               11.4 +/-    1.28      14.8 +/-    1.28  0.040 / 0.030
G22     209.1          67.2                9.9 +/-    0.33      10.6 +/-    0.33  0.040 / 0.030
G23     308.9          38.2                8.5 +/-    1.67      12.7 +/-    1.67  0.050 / 0.090
G26     95.5           55.7                9.0 +/-    0.63      10.7 +/-    0.63  0.100 / 0.070
G31     45.4           33.4                7.7 +/-    1.09      12.6 +/-    1.09  0.050 / 0.040