PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-01:57:40
G02     214.3          59.2                6.7 +/-    0.60       7.6 +/-    0.60  0.080 / 0.060
G06     78.7           80.7                5.0 +/-    0.38       5.1 +/-    0.38  0.050 / 0.050
G12     316.8          31.7                5.3 +/-    1.51       9.0 +/-    1.51  0.070 / 0.120
G17     56.5           32.0                4.3 +/-    2.99       7.3 +/-    2.99  0.070 / 0.080
G19     36.3           50.7                5.0 +/-    1.47       6.3 +/-    1.47  0.040 / 0.040
G24     265.3          42.3                7.2 +/-    1.94      10.1 +/-    1.94  0.040 / 0.050
G28     120.1          18.4                6.6 +/-    1.12      15.0 +/-    1.12  0.040 / 0.040