PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-23:58:10
G05     50.0           14.2                8.2 +/-    1.28      20.7 +/-    1.28  0.150 / 0.260
G10     238.1          14.7               17.6 +/-    1.41      44.2 +/-    1.41  0.080 / 0.190
G13     71.7           36.0               10.5 +/-    0.85      16.4 +/-    0.85  0.100 / 0.280
G15     123.3          54.0               13.8 +/-    1.05      16.6 +/-    1.05  0.080 / 0.330
G16     310.2          14.2                9.7 +/-    1.50      24.5 +/-    1.50  0.050 / 0.080
G20     246.3          24.2               11.9 +/-    1.71      23.8 +/-    1.71  0.040 / 0.080
G21     315.3          48.3               11.1 +/-    0.89      14.3 +/-    0.89  0.140 / 0.320
G26     282.7          20.5               11.3 +/-    1.30      24.5 +/-    1.30  0.150 / 0.240
G29     158.6          70.1               13.3 +/-    1.49      14.0 +/-    1.49  0.030 / 0.040