PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-16:57:40
G05     49.5           16.5                6.3 +/-    0.82      15.1 +/-    0.82  0.080 / 0.180
G10     238.6          17.3               10.2 +/-    1.84      24.0 +/-    1.84  0.100 / 0.190
G13     69.4           34.6                7.2 +/-    0.72      11.5 +/-    0.72  0.040 / 0.070
G15     115.3          54.9                9.5 +/-    0.30      11.3 +/-    0.30  0.040 / 0.080
G16     309.8          14.2                7.0 +/-    2.44      17.8 +/-    2.44  0.110 / 0.350
G20     253.2          41.8               10.2 +/-    0.93      14.3 +/-    0.93  0.110 / 0.360
G21     317.3          49.1                9.4 +/-    0.74      12.0 +/-    0.74  0.030 / 0.040
G26     283.3          19.7                8.5 +/-    2.02      18.9 +/-    2.02  0.020 / 0.040
G29     156.7          68.8               11.1 +/-    1.61      11.8 +/-    1.61  0.090 / 0.300