PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-20:27:40
G10     273.7          42.1               10.5 +/-    1.41      14.7 +/-    1.41  0.070 / 0.040
G13     39.4           13.4                8.5 +/-    2.72      22.1 +/-    2.72  0.060 / 0.040
G15     56.4           48.5               10.5 +/-    0.72      13.5 +/-    0.72  0.130 / 0.160
G20     309.6          62.6                9.5 +/-    0.89      10.5 +/-    0.89  0.090 / 0.140
G21     21.5           75.1               11.3 +/-    0.61      11.6 +/-    0.61  0.100 / 0.220
G24     112.6          17.8               12.7 +/-    0.96      29.4 +/-    0.96  0.090 / 0.170
G27     316.3          22.3                9.2 +/-    1.75      19.1 +/-    1.75  0.120 / 0.400
G29     168.4          25.4               12.3 +/-    1.13      23.9 +/-    1.13  0.160 / 0.450
G32     205.0          15.3               14.9 +/-    2.75      36.8 +/-    2.75  0.040 / 0.040