PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-19:43:00
G10     266.7          39.4               12.3 +/-    1.12      18.1 +/-    1.12  0.040 / 0.040
G13     41.8           17.7                8.4 +/-    3.11      19.6 +/-    3.11  0.050 / 0.050
G15     59.9           49.4                9.7 +/-    1.22      12.4 +/-    1.22  0.160 / 0.350
G16     279.2          12.9               10.1 +/-    1.93      26.4 +/-    1.93  0.090 / 0.310
G20     298.5          60.7               11.1 +/-    0.80      12.5 +/-    0.80  0.030 / 0.050
G21     359.6          70.8               12.2 +/-    0.56      12.8 +/-    0.56  0.040 / 0.050
G24     122.7          13.6               12.7 +/-    1.92      32.6 +/-    1.92  0.170 / 0.360
G27     319.2          18.0                9.3 +/-    1.69      21.5 +/-    1.69  0.160 / 0.390
G29     167.2          32.8               12.6 +/-    0.82      20.9 +/-    0.82  0.130 / 0.180