PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-01:57:50
G01     58.6           30.0                5.8 +/-    1.95      10.1 +/-    1.95  0.040 / 0.040
G06     181.1          14.9                8.4 +/-    3.16      20.9 +/-    3.16  0.050 / 0.050
G07     143.0          21.1                7.0 +/-    2.55      15.0 +/-    2.55  0.030 / 0.030
G11     48.8           24.8                4.2 +/-    1.30       8.2 +/-    1.30  0.030 / 0.030
G13     261.7          34.5                7.7 +/-    1.31      12.4 +/-    1.31  0.150 / 0.150
G15     291.7          16.8                5.7 +/-    2.36      13.6 +/-    2.36  0.160 / 0.140
G17     261.7          75.8                6.9 +/-    0.41       7.0 +/-    0.41  0.090 / 0.080
G19     234.7          52.5                7.6 +/-    2.22       9.3 +/-    2.22  0.100 / 0.080
G28     39.3           55.8                5.2 +/-    2.00       6.1 +/-    2.00  0.090 / 0.130
G30     143.8          46.4                7.2 +/-    0.73       9.6 +/-    0.73  0.150 / 0.150