PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-00:12:50
G01     103.7          27.3                8.5 +/-    1.36      15.7 +/-    1.36  0.040 / 0.040
G07     111.6          56.0                8.5 +/-    0.33      10.1 +/-    0.33  0.040 / 0.040
G08     42.0           19.8                6.0 +/-    1.41      13.3 +/-    1.41  0.060 / 0.120
G09     174.9          11.6               11.1 +/-    2.53      29.8 +/-    2.53  0.060 / 0.110
G11     88.3           43.7                9.0 +/-    1.38      12.3 +/-    1.38  0.050 / 0.070
G13     307.5          30.0                7.2 +/-    1.31      12.7 +/-    1.31  0.070 / 0.060
G17     207.9          39.5                9.4 +/-    0.94      13.7 +/-    0.94  0.180 / 0.240
G19     210.0          16.2               10.3 +/-    3.90      25.0 +/-    3.90  0.120 / 0.260
G28     326.0          61.6                6.4 +/-    0.50       7.1 +/-    0.50  0.030 / 0.040
G30     62.7           78.0                8.4 +/-    1.19       8.6 +/-    1.19  0.030 / 0.040