PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-09:12:50
G02     26.5           60.6                4.4 +/-    0.88       4.9 +/-    0.88  0.040 / 0.040
G05     154.4          52.0                7.7 +/-    0.58       9.5 +/-    0.58  0.040 / 0.040
G06     48.2           23.2                2.7 +/-    1.89       5.5 +/-    1.89  0.020 / 0.020
G12     214.0          77.4                5.0 +/-    0.78       5.1 +/-    0.78  0.030 / 0.030
G19     92.3           13.4                6.4 +/-    1.58      16.5 +/-    1.58  0.040 / 0.040
G25     307.9          46.4                4.6 +/-    1.22       6.1 +/-    1.22  0.030 / 0.040
G29     299.4          20.1                2.1 +/-    2.12       4.5 +/-    2.12  0.080 / 0.230