PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/15-17:27:50
G01     260.4          38.7               11.9 +/-    3.38      17.7 +/-    3.38  0.060 / 0.040
G03     316.7          39.6               10.4 +/-    1.10      15.2 +/-    1.10  0.060 / 0.040
G10     134.0          10.9               13.5 +/-    2.21      36.8 +/-    2.21  0.030 / 0.030
G11     246.2          16.7               12.0 +/-    1.87      28.5 +/-    1.87  0.030 / 0.030
G14     51.0           46.5                8.8 +/-    1.85      11.6 +/-    1.85  0.060 / 0.080
G22     311.1          60.6               10.3 +/-    1.22      11.6 +/-    1.22  0.060 / 0.090
G25     46.0           14.3                8.0 +/-    1.53      20.2 +/-    1.53  0.130 / 0.270
G26     142.0          31.9               12.3 +/-    2.30      20.7 +/-    2.30  0.130 / 0.190
G31     44.3           65.6                9.9 +/-    0.69      10.8 +/-    0.69  0.110 / 0.070
G32     71.4           27.0                8.4 +/-    1.17      15.7 +/-    1.17  0.110 / 0.080