PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-16:57:50
G10     264.1          38.0               11.1 +/-    1.20      16.6 +/-    1.20  0.080 / 0.250
G13     43.0           19.4                7.6 +/-    1.08      17.0 +/-    1.08  0.080 / 0.230
G15     61.0           49.3                9.1 +/-    0.31      11.5 +/-    0.31  0.140 / 0.390
G16     281.2          13.7                6.7 +/-    1.65      17.1 +/-    1.65  0.150 / 0.330
G20     295.6          60.4               10.5 +/-    0.71      11.9 +/-    0.71  0.130 / 0.260
G21     356.1          69.5               10.1 +/-    0.76      10.7 +/-    0.76  0.130 / 0.230
G24     124.9          12.2               11.0 +/-    1.56      29.2 +/-    1.56  0.050 / 0.050
G27     320.1          16.3                5.2 +/-    0.95      12.5 +/-    0.95  0.050 / 0.050
G29     167.0          35.7               11.1 +/-    1.13      17.4 +/-    1.13  0.040 / 0.080