PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-07:42:40
G02     200.3          26.2                6.9 +/-    2.19      13.1 +/-    2.19  0.140 / 0.380
G06     166.7          59.0                8.7 +/-    0.51      10.0 +/-    0.51  0.120 / 0.320
G12     302.3          11.2               -4.0 +/-   11.71     -10.7 +/-   11.71  0.160 / 0.220
G13     222.6          10.6                4.3 +/-    2.70      11.8 +/-    2.70  0.160 / 0.220
G17     26.9           56.2               -0.0 +/-    0.76      -0.0 +/-    0.76  0.060 / 0.080
G19     343.3          69.8                5.9 +/-    0.40       6.2 +/-    0.40  0.050 / 0.070
G24     307.4          31.3                4.9 +/-    1.20       8.3 +/-    1.20  0.040 / 0.040
G28     86.7           44.3                7.2 +/-    0.93       9.8 +/-    0.93  0.040 / 0.050
G30     158.7          13.6                5.9 +/-    3.33      15.3 +/-    3.33  0.040 / 0.030