PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-16:12:30
G02     259.1          77.6                8.1 +/-    0.51       8.3 +/-    0.51  0.060 / 0.060
G05     170.1          20.7               12.0 +/-    1.28      25.9 +/-    1.28  0.040 / 0.050
G06     39.7           51.6                8.3 +/-    0.46      10.2 +/-    0.46  0.280 / 0.280
G12     320.8          57.5                7.5 +/-    0.83       8.7 +/-    0.83  0.120 / 0.300
G17     73.7           21.6                8.0 +/-    1.71      16.9 +/-    1.71  0.050 / 0.040
G19     63.6           33.3                8.5 +/-    0.71      13.9 +/-    0.71  0.030 / 0.040
G24     240.2          31.1               11.6 +/-    1.05      19.8 +/-    1.05  0.170 / 0.180
G25     317.1          16.4                8.6 +/-    5.19      20.7 +/-    5.19  0.120 / 0.130