PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-05:27:40
G01     56.6           28.4                2.2 +/-    1.10       4.1 +/-    1.10  0.040 / 0.040
G06     178.8          16.1                7.2 +/-    1.76      17.4 +/-    1.76  0.040 / 0.040
G07     142.4          21.2                7.1 +/-    1.00      15.2 +/-    1.00  0.070 / 0.220
G11     48.7           26.5                3.6 +/-    2.03       6.7 +/-    2.03  0.090 / 0.210
G13     259.2          35.8                8.8 +/-    0.68      13.8 +/-    0.68  0.080 / 0.170
G15     289.8          17.2                5.1 +/-    1.31      12.1 +/-    1.31  0.070 / 0.180
G17     264.2          78.1                7.3 +/-    0.73       7.4 +/-    0.73  0.050 / 0.050
G19     233.4          54.4                6.8 +/-    1.21       8.1 +/-    1.21  0.040 / 0.060
G28     22.4           60.1                4.6 +/-    0.30       5.2 +/-    0.30  0.050 / 0.050
G30     145.8          55.1                7.0 +/-    0.94       8.3 +/-    0.94  0.040 / 0.050