PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-10:27:50
G02     202.1          24.7                4.3 +/-    1.80       8.5 +/-    1.80  0.220 / 0.300
G06     166.9          60.9                6.3 +/-    0.71       7.1 +/-    0.71  0.250 / 0.340
G12     303.4          10.8               -5.6 +/-   13.36     -15.3 +/-   13.36  0.060 / 0.100
G17     31.0           53.1                3.0 +/-    0.85       3.7 +/-    0.85  0.070 / 0.090
G19     330.5          69.5                3.1 +/-    0.51       3.3 +/-    0.51  0.090 / 0.330
G24     302.8          36.6                2.1 +/-    1.43       3.2 +/-    1.43  0.150 / 0.310
G28     93.7           37.3                3.6 +/-    0.99       5.5 +/-    0.99  0.030 / 0.040
G30     158.3          10.4                5.2 +/-    4.20      14.3 +/-    4.20  0.040 / 0.040