PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-00:42:30
G10     246.3          24.4               11.5 +/-    1.70      22.7 +/-    1.70  0.040 / 0.080
G13     58.0           31.5               11.5 +/-    1.56      19.5 +/-    1.56  0.040 / 0.050
G15     95.5           57.5               12.7 +/-    0.61      14.8 +/-    0.61  0.080 / 0.160
G16     302.0          15.0                5.9 +/-    3.13      14.7 +/-    3.13  0.070 / 0.160
G20     263.4          47.2               13.8 +/-    0.64      18.0 +/-    0.64  0.130 / 0.470
G21     327.9          56.2                9.6 +/-    0.99      11.3 +/-    0.99  0.150 / 0.510
G26     273.9          17.2               10.9 +/-    1.95      25.6 +/-    1.95  0.060 / 0.130
G29     160.9          54.6               12.6 +/-    0.82      15.1 +/-    0.82  0.080 / 0.140