PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-21:12:50
G01     223.4          14.5                8.7 +/-    5.16      21.8 +/-    5.16  0.260 / 0.250
G03     276.4          69.6                9.1 +/-    1.18       9.6 +/-    1.18  0.230 / 0.360
G09     296.7          11.3                4.3 +/-   26.83      11.6 +/-   26.83  0.130 / 0.280
G14     90.1           21.2                8.3 +/-    2.18      17.8 +/-    2.18  0.130 / 0.230
G16     145.0          47.7               10.3 +/-    1.29      13.4 +/-    1.29  0.040 / 0.050
G22     209.1          67.2               10.3 +/-    0.85      11.1 +/-    0.85  0.040 / 0.050
G23     308.9          38.2                8.5 +/-    1.40      12.7 +/-    1.40  0.040 / 0.080
G26     95.5           55.7                8.7 +/-    0.30      10.3 +/-    0.30  0.040 / 0.070
G31     45.4           33.4                6.5 +/-    1.21      10.7 +/-    1.21  0.040 / 0.040