PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/01-01:28:10
G10     267.6          39.7               13.5 +/-    1.31      19.7 +/-    1.31  0.160 / 0.130
G13     41.4           17.2                9.2 +/-    2.34      21.7 +/-    2.34  0.110 / 0.150
G15     58.2           47.9               10.5 +/-    0.64      13.6 +/-    0.64  0.080 / 0.070
G16     280.1          12.3                8.7 +/-    1.52      23.2 +/-    1.52  0.100 / 0.080
G20     297.9          60.1               12.3 +/-    0.88      13.9 +/-    0.88  0.050 / 0.050
G21     2.9            71.6               13.4 +/-    0.75      14.0 +/-    0.75  0.050 / 0.040
G24     120.8          14.3               20.9 +/-    2.28      52.8 +/-    2.28  0.100 / 0.260
G27     319.1          18.2                8.6 +/-    3.70      19.8 +/-    3.70  0.140 / 0.380
G29     166.5          29.9               12.7 +/-    1.69      22.3 +/-    1.69  0.040 / 0.040