PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-16:28:10
G10     291.9          50.2                7.5 +/-    0.63       9.5 +/-    0.63  0.040 / 0.050
G15     47.3           33.3                5.3 +/-    0.58       8.7 +/-    0.58  0.050 / 0.040
G20     342.8          65.4                6.2 +/-    0.98       6.8 +/-    0.98  0.070 / 0.150
G21     88.6           73.9                9.7 +/-    0.48      10.0 +/-    0.48  0.060 / 0.140
G24     97.0           24.5                7.1 +/-    0.88      14.1 +/-    0.88  0.040 / 0.050
G27     306.5          30.6                6.5 +/-    0.99      11.2 +/-    0.99  0.040 / 0.050
G29     167.6          10.3               11.4 +/-    3.36      31.7 +/-    3.36  0.070 / 0.100
G32     209.0          27.4                8.0 +/-    1.11      14.8 +/-    1.11  0.050 / 0.080