PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/19-02:57:40
G02     32.2           56.5                3.6 +/-    0.50       4.2 +/-    0.50  0.040 / 0.030
G05     140.4          60.3                5.9 +/-    1.00       6.6 +/-    1.00  0.020 / 0.040
G06     52.3           18.0                2.5 +/-    1.73       5.7 +/-    1.73  0.040 / 0.040
G12     204.5          71.1                5.2 +/-    1.10       5.4 +/-    1.10  0.030 / 0.040
G19     97.6           12.2                3.7 +/-    1.67       9.7 +/-    1.67  0.050 / 0.050
G25     301.6          50.8                4.0 +/-    0.45       5.1 +/-    0.45  0.040 / 0.050
G29     305.2          25.6                5.5 +/-    0.92      10.7 +/-    0.92  0.080 / 0.070