PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/01-01:28:00
G10     267.1          39.4               14.8 +/-    0.76      21.7 +/-    0.76  0.040 / 0.040
G13     41.6           17.5                9.8 +/-    1.17      22.9 +/-    1.17  0.040 / 0.050
G15     58.7           48.2               11.0 +/-    0.32      14.2 +/-    0.32  0.100 / 0.240
G16     280.5          12.4               10.1 +/-    1.70      26.7 +/-    1.70  0.110 / 0.280
G20     297.1          59.9               12.8 +/-    0.42      14.5 +/-    0.42  0.050 / 0.070
G21     1.8            71.3               13.4 +/-    0.54      14.1 +/-    0.54  0.060 / 0.070
G24     121.1          14.0               21.5 +/-    0.97      54.6 +/-    0.97  0.090 / 0.140
G27     319.3          17.9                9.3 +/-    0.59      21.6 +/-    0.59  0.100 / 0.160
G29     166.5          30.4               13.2 +/-    1.56      22.9 +/-    1.56  0.120 / 0.370