PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-13:58:00
G01     102.4          27.8                7.6 +/-    1.19      13.9 +/-    1.19  0.030 / 0.030
G07     113.5          54.7                8.5 +/-    0.76      10.2 +/-    0.76  0.020 / 0.020
G08     41.6           15.7                6.6 +/-    2.14      16.0 +/-    2.14  0.030 / 0.030
G11     81.7           42.3                7.8 +/-    1.36      11.0 +/-    1.36  0.030 / 0.040
G13     305.6          31.5                6.6 +/-    1.16      11.2 +/-    1.16  0.080 / 0.110
G17     207.7          42.8               10.4 +/-    0.91      14.5 +/-    0.91  0.070 / 0.110
G18     75.0           24.6                7.8 +/-    0.94      15.5 +/-    0.94  0.110 / 0.180
G19     210.8          14.4                6.2 +/-    5.56      15.8 +/-    5.56  0.050 / 0.130
G28     326.8          61.5                6.0 +/-    0.54       6.8 +/-    0.54  0.060 / 0.130
G30     41.5           79.8                8.3 +/-    0.37       8.5 +/-    0.37  0.070 / 0.120