PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-10:58:00
G01     261.6          40.1                3.9 +/-    1.30       5.6 +/-    1.30  0.050 / 0.040
G03     317.0          39.3                2.2 +/-    1.18       3.3 +/-    1.18  0.040 / 0.040
G10     132.8          10.8                3.7 +/-    3.02      10.2 +/-    3.02  0.190 / 0.220
G11     244.3          16.4                3.0 +/-    1.97       7.2 +/-    1.97  0.220 / 0.260
G14     50.5           46.0                1.9 +/-    0.58       2.5 +/-    0.58  0.060 / 0.090
G18     226.1          34.1                5.0 +/-    0.69       8.1 +/-    0.69  0.060 / 0.090
G22     311.8          61.3                3.5 +/-    1.23       3.9 +/-    1.23  0.060 / 0.090
G25     47.1           14.2                0.6 +/-    1.42       1.6 +/-    1.42  0.060 / 0.080
G31     47.1           68.2                2.3 +/-    0.94       2.4 +/-    0.94  0.150 / 0.330
G32     66.8           32.3                1.9 +/-    0.81       3.2 +/-    0.81  0.130 / 0.320