PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-02:27:30
G10     292.2          50.0               12.0 +/-    0.64      15.1 +/-    0.64  0.060 / 0.110
G15     47.2           33.4                8.8 +/-    0.49      14.4 +/-    0.49  0.090 / 0.100
G20     316.4          60.8               15.8 +/-    0.84      17.9 +/-    0.84  0.040 / 0.050
G21     80.2           76.6               11.8 +/-    1.01      12.1 +/-    1.01  0.040 / 0.050
G24     100.2          25.0               10.8 +/-    0.41      21.0 +/-    0.41  0.040 / 0.040
G27     304.2          32.5                9.7 +/-    1.66      16.2 +/-    1.66  0.040 / 0.050
G29     168.8          11.7               11.2 +/-    3.01      30.2 +/-    3.01  0.070 / 0.130
G32     208.8          30.2               13.7 +/-    2.93      23.9 +/-    2.93  0.100 / 0.150