PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-16:27:50
G01     234.7          24.6               11.4 +/-    2.01      22.4 +/-    2.01  0.080 / 0.130
G14     75.7           32.7                9.2 +/-    0.98      15.2 +/-    0.98  0.070 / 0.200
G16     154.1          34.7               13.3 +/-    1.60      21.2 +/-    1.60  0.090 / 0.050
G22     242.5          76.5               12.7 +/-    0.54      13.0 +/-    0.54  0.040 / 0.060
G23     300.7          32.2                9.7 +/-    2.42      16.2 +/-    2.42  0.040 / 0.040
G26     114.0          50.3               11.6 +/-    0.84      14.6 +/-    0.84  0.030 / 0.030
G31     42.2           40.5                9.3 +/-    1.28      13.4 +/-    1.28  0.060 / 0.040
G32     91.6           11.6               10.5 +/-    1.30      28.3 +/-    1.30  0.060 / 0.050