PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-07:27:40
G02     355.9          77.3                2.3 +/-    0.65       2.4 +/-    0.65  0.030 / 0.040
G05     163.3          34.7                8.5 +/-    1.11      13.5 +/-    1.11  0.040 / 0.050
G06     40.9           43.0                2.4 +/-    0.51       3.3 +/-    0.51  0.040 / 0.070
G12     311.1          70.0                4.1 +/-    1.20       4.3 +/-    1.20  0.060 / 0.080
G17     86.6           11.5                5.1 +/-    1.65      13.8 +/-    1.65  0.030 / 0.030
G19     76.2           26.4                4.4 +/-    1.24       8.3 +/-    1.24  0.030 / 0.030
G24     228.8          22.5                6.1 +/-    1.74      12.6 +/-    1.74  0.090 / 0.130
G25     317.3          29.0                1.2 +/-    1.70       2.1 +/-    1.70  0.120 / 0.130
G29     287.5          10.8               -4.6 +/-   19.14     -12.5 +/-   19.14  0.090 / 0.270