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               10.0 +/-    2.42      18.9 +/-    2.42  0.030 / 0.050
G06     178.7          20.7               14.4 +/-    2.29      31.2 +/-    2.29  0.040 / 0.060
G07     144.2          10.7               12.4 +/-    2.29      34.0 +/-    2.29  0.180 / 0.250
G11     45.1           17.5               10.2 +/-    2.55      23.9 +/-    2.55  0.170 / 0.280
G13     252.9          32.8               13.1 +/-    2.05      21.7 +/-    2.05  0.150 / 0.310
G15     286.0          16.2               13.7 +/-    2.29      33.1 +/-    2.29  0.140 / 0.290
G17     289.9          78.8               13.5 +/-    0.77      13.8 +/-    0.77  0.100 / 0.170
G19     241.1          58.1               13.0 +/-    1.76      15.1 +/-    1.76  0.100 / 0.180
G28     39.4           57.1               12.5 +/-    0.62      14.6 +/-    0.62  0.020 / 0.030
G30     147.3          41.4               13.6 +/-    0.61      19.4 +/-    0.61  0.020 / 0.030