PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-01:42:40
G10     268.4          40.2               12.1 +/-    1.39      17.5 +/-    1.39  0.110 / 0.150
G13     41.1           16.6                6.8 +/-    2.52      16.4 +/-    2.52  0.100 / 0.150
G15     57.4           47.2                8.3 +/-    0.84      10.8 +/-    0.84  0.100 / 0.070
G16     279.4          12.0               10.2 +/-    1.80      27.3 +/-    1.80  0.090 / 0.100
G20     299.4          60.5                8.6 +/-    0.63       9.7 +/-    0.63  0.040 / 0.040
G21     5.0            72.1                9.9 +/-    0.62      10.3 +/-    0.62  0.050 / 0.030
G24     120.1          14.8               10.6 +/-    2.12      26.5 +/-    2.12  0.110 / 0.280
G27     318.7          18.8                8.1 +/-    2.11      18.3 +/-    2.11  0.210 / 0.330
G29     166.6          29.0               12.4 +/-    1.67      22.1 +/-    1.67  0.030 / 0.040