PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-18:57:30
G10     287.2          49.1               10.0 +/-    3.56      12.8 +/-    3.56  0.120 / 0.110
G15     47.9           34.4               10.3 +/-    1.21      16.6 +/-    1.21  0.080 / 0.110
G20     336.8          65.3               11.1 +/-    0.31      12.1 +/-    0.31  0.040 / 0.040
G21     60.0           77.2               12.5 +/-    0.33      12.8 +/-    0.33  0.040 / 0.040
G24     108.2          22.9               12.5 +/-    1.36      25.5 +/-    1.36  0.100 / 0.120
G27     308.9          30.0               11.3 +/-    1.23      19.8 +/-    1.23  0.090 / 0.180
G29     168.3          16.1               10.7 +/-    0.84      25.8 +/-    0.84  0.120 / 0.100
G32     206.9          24.7               11.1 +/-    2.16      21.9 +/-    2.16  0.100 / 0.080