PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-00:27:50
G08     260.9          15.9               12.5 +/-    3.41      30.4 +/-    3.41  0.210 / 0.390
G10     71.1           55.7               10.4 +/-    1.05      12.3 +/-    1.05  0.170 / 0.480
G11     307.1          20.9                9.3 +/-    2.81      19.9 +/-    2.81  0.140 / 0.410
G14     278.9          68.4               10.5 +/-    0.42      11.2 +/-    0.42  0.150 / 0.480
G18     308.6          37.1                9.0 +/-    3.03      13.7 +/-    3.03  0.040 / 0.060
G20     100.5          33.0               10.6 +/-    0.84      17.5 +/-    0.84  0.040 / 0.100
G21     155.5          10.2               11.7 +/-    2.29      32.6 +/-    2.29  0.140 / 0.350
G27     228.8          12.6               12.6 +/-    5.93      33.1 +/-    5.93  0.100 / 0.290
G31     176.8          36.5               13.7 +/-    0.95      21.2 +/-    0.95  0.150 / 0.300
G32     358.5          70.7               10.0 +/-    0.66      10.6 +/-    0.66  0.140 / 0.310