PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-21:27:30
G10     299.8          52.7               10.4 +/-    1.59      12.7 +/-    1.59  0.040 / 0.040
G14     210.6          12.6               11.9 +/-    3.01      31.4 +/-    3.01  0.040 / 0.040
G15     46.6           31.5                9.2 +/-    1.19      15.6 +/-    1.19  0.060 / 0.090
G20     356.0          65.3               11.0 +/-    0.44      12.0 +/-    0.44  0.060 / 0.090
G21     101.2          73.0               12.2 +/-    0.50      12.6 +/-    0.50  0.090 / 0.450
G24     93.0           26.7               10.6 +/-    1.26      19.9 +/-    1.26  0.100 / 0.600
G27     299.9          34.1                9.8 +/-    1.83      15.8 +/-    1.83  0.110 / 0.130
G32     211.0          34.4               13.5 +/-    1.79      21.7 +/-    1.79  0.090 / 0.160