PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-20:12:40
G02     352.1          76.4                7.4 +/-    0.78       7.6 +/-    0.78  0.080 / 0.210
G05     162.3          36.9               10.9 +/-    1.00      16.8 +/-    1.00  0.100 / 0.190
G06     42.0           37.5                6.3 +/-    0.60       9.6 +/-    0.60  0.090 / 0.130
G12     307.6          72.2                6.3 +/-    1.01       6.5 +/-    1.01  0.080 / 0.180
G17     87.4           11.1                7.9 +/-    1.43      21.6 +/-    1.43  0.040 / 0.040
G19     78.1           24.1                8.6 +/-    1.26      17.2 +/-    1.26  0.040 / 0.040
G24     226.1          20.4               10.5 +/-    1.50      22.8 +/-    1.50  0.030 / 0.040
G25     316.4          31.1                7.8 +/-    0.84      13.4 +/-    0.84  0.020 / 0.040
G29     288.6          11.8                9.6 +/-    2.33      25.7 +/-    2.33  0.110 / 0.270