PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-17:27:50
G01     52.8           27.0               10.0 +/-    1.20      18.7 +/-    1.20  0.130 / 0.250
G06     178.6          20.3               13.8 +/-    1.53      30.1 +/-    1.53  0.130 / 0.280
G07     144.0          11.5               11.2 +/-    2.43      30.4 +/-    2.43  0.030 / 0.070
G11     45.3           18.2                9.9 +/-    2.01      22.9 +/-    2.01  0.040 / 0.050
G13     253.5          33.1               12.3 +/-    1.66      20.3 +/-    1.66  0.080 / 0.200
G15     286.7          16.3               11.1 +/-    2.05      26.9 +/-    2.05  0.090 / 0.220
G17     285.1          78.5               13.1 +/-    0.30      13.4 +/-    0.30  0.060 / 0.140
G19     240.3          57.7               13.4 +/-    0.68      15.5 +/-    0.68  0.070 / 0.120
G28     38.2           57.4               11.5 +/-    0.40      13.4 +/-    0.40  0.040 / 0.030
G30     147.1          42.2               14.3 +/-    0.55      20.1 +/-    0.55  0.040 / 0.030