PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-21:43:10
G01     218.6          11.5                9.8 +/-    2.41      26.4 +/-    2.41  0.050 / 0.040
G03     270.1          69.8                8.8 +/-    1.08       9.3 +/-    1.08  0.040 / 0.040
G09     299.8          16.6                7.3 +/-    4.18      17.5 +/-    4.18  0.140 / 0.180
G14     90.4           23.5                9.0 +/-    1.16      18.1 +/-    1.16  0.130 / 0.210
G16     136.1          51.7                8.8 +/-    0.86      10.8 +/-    0.86  0.040 / 0.060
G22     206.8          64.4                9.3 +/-    0.66      10.2 +/-    0.66  0.050 / 0.060
G23     312.4          42.1                7.4 +/-    0.95      10.4 +/-    0.95  0.030 / 0.040
G26     84.4           54.2                6.6 +/-    0.72       7.9 +/-    0.72  0.040 / 0.030
G31     48.3           26.5                6.0 +/-    2.40      11.4 +/-    2.40  0.140 / 0.200