PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/25-15:57:30
G10     287.4          49.3                8.2 +/-    4.36      10.4 +/-    4.36  0.070 / 0.090
G15     47.4           32.5                6.3 +/-    1.97      10.5 +/-    1.97  0.060 / 0.080
G20     340.0          65.5                9.4 +/-    0.56      10.2 +/-    0.56  0.160 / 0.320
G21     64.3           76.7                9.8 +/-    1.24      10.0 +/-    1.24  0.150 / 0.360
G24     108.0          23.0                9.0 +/-    1.36      18.4 +/-    1.36  0.050 / 0.050
G27     308.7          30.2                7.5 +/-    1.44      13.1 +/-    1.44  0.040 / 0.040
G29     168.3          16.3               11.6 +/-    1.30      28.0 +/-    1.30  0.170 / 0.110
G32     206.7          25.3               10.1 +/-    2.34      19.5 +/-    2.34  0.170 / 0.120