PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-23:27:50
G03     238.9          68.0                6.9 +/-    0.58       7.3 +/-    0.58  0.060 / 0.050
G09     305.3          22.7                4.9 +/-    1.07      10.1 +/-    1.07  0.060 / 0.050
G14     98.6           17.8                7.5 +/-    1.40      17.5 +/-    1.40  0.160 / 0.340
G16     119.8          59.2                7.9 +/-    0.50       9.1 +/-    0.50  0.120 / 0.300
G22     197.3          54.7                8.2 +/-    0.70       9.8 +/-    0.70  0.040 / 0.040
G23     320.2          50.1                7.1 +/-    0.88       9.0 +/-    0.88  0.030 / 0.040
G26     67.3           50.6                5.7 +/-    0.97       7.1 +/-    0.97  0.040 / 0.040
G31     53.2           18.2                4.1 +/-    2.58       9.5 +/-    2.58  0.040 / 0.050