PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-17:27:50
G01     99.7           29.0               13.2 +/-    1.52      23.6 +/-    1.52  0.120 / 0.300
G07     116.6          53.0               14.2 +/-    0.61      17.3 +/-    0.61  0.110 / 0.380
G08     41.8           15.7               11.0 +/-    0.98      27.0 +/-    0.98  0.030 / 0.060
G11     79.7           42.5               13.8 +/-    0.69      19.2 +/-    0.69  0.030 / 0.060
G13     303.5          32.6               14.0 +/-    1.64      23.2 +/-    1.64  0.050 / 0.080
G17     209.8          42.9               15.7 +/-    0.63      21.9 +/-    0.63  0.050 / 0.080
G18     72.8           24.8               13.3 +/-    0.64      26.1 +/-    0.64  0.040 / 0.030
G19     211.5          17.7               13.4 +/-    2.18      31.2 +/-    2.18  0.020 / 0.040
G28     332.5          61.8               13.2 +/-    0.47      14.7 +/-    0.47  0.040 / 0.060
G30     64.7           79.6               14.2 +/-    0.90      14.4 +/-    0.90  0.040 / 0.050