PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-18:42:40
G10     267.4          39.9               13.2 +/-    1.34      19.2 +/-    1.34  0.050 / 0.060
G13     41.5           17.2               10.4 +/-    2.36      24.4 +/-    2.36  0.080 / 0.050
G15     58.6           48.1               11.1 +/-    0.80      14.3 +/-    0.80  0.150 / 0.490
G16     278.4          12.7               10.6 +/-    3.82      27.9 +/-    3.82  0.150 / 0.470
G20     300.5          61.2               11.8 +/-    0.62      13.2 +/-    0.62  0.110 / 0.330
G21     1.6            71.2               12.5 +/-    0.86      13.1 +/-    0.86  0.240 / 0.360
G24     122.4          14.0               14.6 +/-    3.55      37.2 +/-    3.55  0.030 / 0.060
G27     318.9          18.6               10.6 +/-    2.29      24.2 +/-    2.29  0.030 / 0.050
G29     167.4          32.3               13.8 +/-    1.51      23.0 +/-    1.51  0.090 / 0.150