PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-02:12:30
G10     290.0          50.0                9.2 +/-    3.20      11.7 +/-    3.20  0.080 / 0.110
G15     47.2           32.6                7.1 +/-    1.11      11.8 +/-    1.11  0.080 / 0.100
G20     337.4          65.1                9.5 +/-    0.62      10.4 +/-    0.62  0.110 / 0.090
G21     71.5           76.8               10.8 +/-    0.64      11.1 +/-    0.64  0.140 / 0.140
G24     104.3          24.0               10.3 +/-    1.45      20.5 +/-    1.45  0.040 / 0.040
G27     307.3          30.8                8.8 +/-    0.75      15.1 +/-    0.75  0.040 / 0.030
G29     167.3          12.0               11.0 +/-    1.96      29.4 +/-    1.96  0.080 / 0.080
G32     208.4          24.3               13.9 +/-    2.06      27.6 +/-    2.06  0.070 / 0.110