PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-22:58:00
G10     299.4          52.6                8.9 +/-    1.44      10.9 +/-    1.44  0.060 / 0.080
G14     210.6          12.4                8.8 +/-   24.72      23.2 +/-   24.72  0.060 / 0.100
G15     46.5           31.0                6.0 +/-    1.04      10.4 +/-    1.04  0.030 / 0.040
G20     288.0          38.9                5.7 +/-    1.84       8.5 +/-    1.84  0.030 / 0.040
G21     97.9           74.5                8.7 +/-    0.51       8.9 +/-    0.51  0.150 / 0.480
G24     94.0           26.7               10.8 +/-    0.91      20.2 +/-    0.91  0.090 / 0.630
G27     299.4          34.6                9.3 +/-    1.02      14.8 +/-    1.02  0.090 / 0.140
G32     210.7          35.1               12.9 +/-    1.09      20.5 +/-    1.09  0.080 / 0.150