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               12.4 +/-    1.09      15.6 +/-    1.09  0.040 / 0.040
G15     47.2           32.6                7.5 +/-    1.02      12.5 +/-    1.02  0.040 / 0.050
G20     337.4          65.1                8.2 +/-    0.57       8.9 +/-    0.57  0.060 / 0.100
G21     71.5           76.8               11.2 +/-    0.50      11.5 +/-    0.50  0.050 / 0.100
G24     104.3          24.0                8.2 +/-    1.73      16.3 +/-    1.73  0.050 / 0.050
G27     307.3          30.8                9.2 +/-    2.69      15.8 +/-    2.69  0.060 / 0.050
G29     167.3          12.0               11.7 +/-    1.70      31.2 +/-    1.70  0.040 / 0.100
G32     208.4          24.3               13.8 +/-    1.07      27.5 +/-    1.07  0.050 / 0.080