PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-23:58:10
G01     302.1          36.1                9.2 +/-    1.02      14.4 +/-    1.02  0.070 / 0.150
G10     111.0          37.0                8.7 +/-    0.86      13.2 +/-    0.86  0.090 / 0.150
G11     275.2          28.6                8.6 +/-    1.84      15.4 +/-    1.84  0.070 / 0.230
G14     10.0           63.7                7.8 +/-    0.50       8.6 +/-    0.50  0.070 / 0.190
G18     120.6          10.0                9.4 +/-    3.17      26.2 +/-    3.17  0.040 / 0.040
G22     311.1          29.1                7.1 +/-    0.92      12.7 +/-    0.92  0.040 / 0.040
G25     75.3           17.5                9.0 +/-    0.72      21.0 +/-    0.72  0.050 / 0.100
G31     171.2          67.3               10.9 +/-    0.69      11.7 +/-    0.69  0.090 / 0.090
G32     38.8           51.0                8.0 +/-    0.40      10.0 +/-    0.40  0.050 / 0.060