PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-20:42:30
G10     294.0          51.5               10.8 +/-    0.88      13.4 +/-    0.88  0.060 / 0.110
G15     46.8           31.2                8.0 +/-    0.51      13.6 +/-    0.51  0.060 / 0.090
G20     347.1          65.3                8.6 +/-    0.64       9.3 +/-    0.64  0.040 / 0.040
G21     80.9           76.3               11.1 +/-    0.66      11.4 +/-    0.66  0.040 / 0.050
G24     103.0          25.3               10.1 +/-    1.20      19.6 +/-    1.20  0.050 / 0.080
G27     304.5          32.7                8.9 +/-    2.67      14.8 +/-    2.67  0.040 / 0.070
G29     168.0          11.3               12.0 +/-    2.54      32.6 +/-    2.54  0.070 / 0.160
G32     208.7          29.0               14.2 +/-    1.76      25.5 +/-    1.76  0.070 / 0.150