PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-17:12:50
G01     260.8          39.5                8.1 +/-    2.65      11.9 +/-    2.65  0.200 / 0.270
G03     316.7          37.4                5.7 +/-    1.30       8.7 +/-    1.30  0.240 / 0.270
G10     133.4          10.3               12.6 +/-    2.29      34.9 +/-    2.29  0.160 / 0.390
G11     242.7          16.0                9.0 +/-    1.20      21.7 +/-    1.20  0.160 / 0.330
G14     52.1           45.1                6.9 +/-    0.69       9.3 +/-    0.69  0.060 / 0.120
G18     222.7          32.6                9.3 +/-    1.61      15.5 +/-    1.61  0.070 / 0.120
G22     311.5          59.9                7.2 +/-    0.96       8.2 +/-    0.96  0.050 / 0.070
G25     43.7           11.9                7.2 +/-    2.53      19.3 +/-    2.53  0.070 / 0.070
G31     46.6           71.6                7.1 +/-    0.67       7.5 +/-    0.67  0.110 / 0.150
G32     68.7           30.3                7.1 +/-    1.11      12.4 +/-    1.11  0.070 / 0.140