PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-18:42:50
G02     215.4          57.3               14.1 +/-    0.72      16.4 +/-    0.72  0.040 / 0.080
G06     58.8           73.7               14.1 +/-    1.10      14.7 +/-    1.10  0.040 / 0.080
G12     319.1          38.0               11.4 +/-    1.33      17.2 +/-    1.33  0.130 / 0.280
G17     56.2           33.3               10.5 +/-    0.70      17.2 +/-    0.70  0.100 / 0.280
G19     34.4           52.1               12.4 +/-    0.43      15.2 +/-    0.43  0.080 / 0.080
G24     265.5          42.1               15.1 +/-    1.20      21.2 +/-    1.20  0.060 / 0.080
G28     121.8          14.7               13.1 +/-    1.60      32.9 +/-    1.60  0.040 / 0.070