PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-17:12:40
G08     313.2          17.3                7.4 +/-    1.40      17.3 +/-    1.40  0.080 / 0.070
G10     327.7          59.6                9.4 +/-    0.69      10.7 +/-    0.69  0.070 / 0.080
G14     215.9          21.9               11.1 +/-    0.95      23.3 +/-    0.95  0.090 / 0.200
G15     46.3           11.3                7.8 +/-    3.46      21.1 +/-    3.46  0.090 / 0.230
G20     34.8           60.4                8.1 +/-    1.00       9.2 +/-    1.00  0.040 / 0.050
G21     129.6          60.8                8.9 +/-    1.02      10.0 +/-    1.02  0.040 / 0.050
G24     80.7           30.6                9.4 +/-    0.80      16.3 +/-    0.80  0.040 / 0.040
G27     280.6          38.2                8.3 +/-    1.16      12.4 +/-    1.16  0.030 / 0.030
G32     218.8          49.7               11.9 +/-    1.84      15.1 +/-    1.84  0.080 / 0.220