PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-06:13:00
G01     40.9           16.3                2.5 +/-    2.09       6.0 +/-    2.09  0.060 / 0.080
G06     174.2          36.5                7.8 +/-    1.54      12.0 +/-    1.54  0.050 / 0.070
G13     238.1          24.3                6.8 +/-    2.31      13.4 +/-    2.31  0.170 / 0.210
G15     270.3          13.2                6.2 +/-    1.03      16.2 +/-    1.03  0.110 / 0.200
G17     358.4          72.3                6.7 +/-    0.63       7.0 +/-    0.63  0.040 / 0.060
G19     273.2          70.0                5.3 +/-    0.53       5.6 +/-    0.53  0.040 / 0.050
G24     317.4          15.8                2.3 +/-    2.50       5.6 +/-    2.50  0.040 / 0.040
G28     58.0           54.2                5.2 +/-    0.82       6.2 +/-    0.82  0.040 / 0.050
G30     155.2          33.8                8.7 +/-    0.58      14.1 +/-    0.58  0.030 / 0.030