PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/28-07:28:10
G02     202.1          35.3                6.9 +/-    1.81      10.9 +/-    1.81  0.160 / 0.300
G06     158.8          68.1                7.1 +/-    0.37       7.5 +/-    0.37  0.110 / 0.240
G12     307.0          17.0                3.1 +/-    2.77       7.4 +/-    2.77  0.050 / 0.090
G17     35.3           49.5                4.3 +/-    0.30       5.4 +/-    0.30  0.050 / 0.080
G19     3.9            65.0                3.6 +/-    0.55       3.9 +/-    0.55  0.050 / 0.040
G24     299.8          36.3                4.6 +/-    1.54       7.1 +/-    1.54  0.040 / 0.040
G28     96.5           39.4                5.8 +/-    0.79       8.6 +/-    0.79  0.040 / 0.030