PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-17:58:00
G01     52.3           26.7               10.8 +/-    1.05      20.2 +/-    1.05  0.160 / 0.350
G06     178.7          20.7               13.8 +/-    1.32      29.8 +/-    1.32  0.220 / 0.350
G07     144.2          10.7               11.0 +/-    4.09      30.2 +/-    4.09  0.070 / 0.110
G11     45.1           17.5               10.1 +/-    1.14      23.5 +/-    1.14  0.070 / 0.140
G13     252.9          32.8               12.7 +/-    1.80      21.1 +/-    1.80  0.030 / 0.070
G15     286.0          16.2               11.7 +/-    1.92      28.3 +/-    1.92  0.030 / 0.060
G17     289.9          78.8               12.5 +/-    0.66      12.7 +/-    0.66  0.110 / 0.240
G19     241.1          58.1               13.5 +/-    0.71      15.6 +/-    0.71  0.110 / 0.220
G28     39.4           57.1               11.4 +/-    0.43      13.3 +/-    0.43  0.090 / 0.210
G30     147.3          41.4               14.8 +/-    0.94      21.1 +/-    0.94  0.080 / 0.160