PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-01:42:40
G02     201.3          29.0                9.2 +/-    1.31      16.4 +/-    1.31  0.070 / 0.080
G06     174.3          57.8               30.1 +/-    0.99      34.8 +/-    0.99  0.080 / 0.080
G17     32.0           52.2                1.3 +/-    1.12       1.6 +/-    1.12  0.060 / 0.090
G19     344.2          68.7                5.4 +/-    0.48       5.7 +/-    0.48  0.060 / 0.080
G24     302.2          36.4                6.1 +/-    1.86       9.4 +/-    1.86  0.040 / 0.030
G28     94.0           38.1                7.3 +/-    0.72      10.9 +/-    0.72  0.040 / 0.030