PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/22-07:57:50
G02     202.8          37.1                5.8 +/-    1.13       8.8 +/-    1.13  0.050 / 0.100
G06     155.4          70.2                5.6 +/-    0.91       5.9 +/-    0.91  0.060 / 0.100
G12     308.3          18.9                2.7 +/-    1.44       6.1 +/-    1.44  0.060 / 0.100
G17     36.9           48.2               -2.2 +/-    1.63      -2.9 +/-    1.63  0.060 / 0.120
G19     7.8            63.7                4.4 +/-    0.96       4.8 +/-    0.96  0.040 / 0.050
G24     297.8          37.3                2.1 +/-    3.82       3.2 +/-    3.82  0.040 / 0.060
G28     98.7           38.0                5.7 +/-    1.00       8.5 +/-    1.00  0.050 / 0.040