PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-17:58:10
G01     256.7          37.5               10.1 +/-    1.04      15.3 +/-    1.04  0.070 / 0.100
G03     316.5          42.0                9.4 +/-    0.89      13.3 +/-    0.89  0.060 / 0.080
G11     243.5          15.2                8.8 +/-    1.30      21.7 +/-    1.30  0.050 / 0.060
G14     54.4           44.6                7.5 +/-    1.18      10.2 +/-    1.18  0.050 / 0.050
G22     309.0          63.1                9.1 +/-    0.57      10.1 +/-    0.57  0.030 / 0.040
G23     283.6          17.5                3.9 +/-   13.30       9.2 +/-   13.30  0.030 / 0.040
G25     43.6           13.0                6.8 +/-    1.02      17.6 +/-    1.02  0.090 / 0.090
G26     140.0          34.3               11.8 +/-    0.99      19.0 +/-    0.99  0.080 / 0.100
G31     42.5           62.8                8.2 +/-    0.47       9.1 +/-    0.47  0.080 / 0.060
G32     73.8           25.3                9.3 +/-    0.83      18.0 +/-    0.83  0.080 / 0.070