PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-16:58:00
G10     271.1          40.9                8.8 +/-    1.27      12.6 +/-    1.27  0.130 / 0.320
G13     40.3           15.2                7.1 +/-    1.30      17.5 +/-    1.30  0.150 / 0.240
G15     57.1           48.1                7.5 +/-    0.59       9.7 +/-    0.59  0.090 / 0.260
G16     276.5          10.9                6.2 +/-    3.22      17.1 +/-    3.22  0.090 / 0.240
G20     304.9          61.8                7.5 +/-    1.03       8.4 +/-    1.03  0.120 / 0.700
G21     20.3           74.3                8.7 +/-    0.82       9.0 +/-    0.82  0.120 / 0.610
G24     113.4          16.6               10.8 +/-    1.69      25.9 +/-    1.69  0.050 / 0.040
G27     317.9          19.9                7.3 +/-    1.77      16.2 +/-    1.77  0.040 / 0.040
G29     167.6          26.8               10.2 +/-    0.88      19.1 +/-    0.88  0.050 / 0.120
G32     204.8          12.2               11.4 +/-    3.02      30.4 +/-    3.02  0.050 / 0.110