PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-16:43:00
G10     298.1          52.9                7.3 +/-    1.64       8.9 +/-    1.64  0.050 / 0.100
G15     45.8           26.2                6.8 +/-    1.82      12.9 +/-    1.82  0.050 / 0.080
G20     357.5          65.1                7.4 +/-    0.59       8.1 +/-    0.59  0.040 / 0.030
G21     93.3           74.3                8.5 +/-    0.48       8.8 +/-    0.48  0.040 / 0.040
G24     100.5          26.4                8.3 +/-    0.84      15.8 +/-    0.84  0.050 / 0.070
G27     301.7          34.1                5.9 +/-    1.55       9.6 +/-    1.55  0.050 / 0.080
G32     209.3          32.5               10.0 +/-    1.80      16.6 +/-    1.80  0.110 / 0.150