PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-22:12:50
G01     70.0           32.6               11.3 +/-    1.75      18.8 +/-    1.75  0.090 / 0.130
G07     137.3          25.7               12.3 +/-    1.37      23.7 +/-    1.37  0.090 / 0.130
G11     52.3           29.6               10.1 +/-    1.22      17.9 +/-    1.22  0.040 / 0.040
G13     273.2          38.2               12.0 +/-    2.10      18.0 +/-    2.10  0.050 / 0.050
G15     301.6          15.6                8.4 +/-    1.05      20.7 +/-    1.05  0.090 / 0.090
G17     233.7          71.0               12.9 +/-    0.53      13.6 +/-    0.53  0.130 / 0.090
G18     46.6           16.2                9.0 +/-    2.21      21.8 +/-    2.21  0.070 / 0.110
G19     223.8          42.2               12.5 +/-    1.43      17.5 +/-    1.43  0.090 / 0.110
G28     12.4           60.5               10.9 +/-    2.01      12.3 +/-    2.01  0.030 / 0.030
G30     136.0          60.7               12.6 +/-    0.30      14.2 +/-    0.30  0.030 / 0.030