PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-19:28:10
G02     248.2          76.8                9.4 +/-    0.61       9.6 +/-    0.61  0.090 / 0.120
G05     170.6          18.1               10.3 +/-    0.67      23.8 +/-    0.67  0.080 / 0.150
G06     39.9           56.6                7.8 +/-    0.31       9.1 +/-    0.31  0.200 / 0.280
G12     320.9          52.0                7.6 +/-    1.08       9.3 +/-    1.08  0.100 / 0.210
G17     71.2           22.6                7.2 +/-    1.12      14.8 +/-    1.12  0.030 / 0.040
G19     59.5           36.2                7.4 +/-    0.89      11.5 +/-    0.89  0.030 / 0.030
G24     243.2          33.5               10.1 +/-    1.16      16.5 +/-    1.16  0.040 / 0.070
G25     316.6          13.3                7.6 +/-    1.64      19.6 +/-    1.64  0.040 / 0.070