PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-12:27:30
G02     24.9           61.4                4.0 +/-    0.51       4.5 +/-    0.51  0.030 / 0.050
G05     157.4          51.6                6.3 +/-    1.29       7.8 +/-    1.29  0.030 / 0.050
G06     49.0           21.6                2.1 +/-    1.47       4.3 +/-    1.47  0.030 / 0.040
G12     206.1          75.8                4.4 +/-    1.04       4.5 +/-    1.04  0.030 / 0.040
G19     93.3           12.8                4.1 +/-    1.53      10.8 +/-    1.53  0.040 / 0.080
G25     307.4          46.5                2.1 +/-    0.80       2.7 +/-    0.80  0.060 / 0.080
G29     300.3          20.9                5.3 +/-    1.22      11.5 +/-    1.22  0.090 / 0.160