PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-17:42:40
G10     253.2          30.6               10.7 +/-    2.43      18.5 +/-    2.43  0.040 / 0.060
G13     50.4           26.9                8.4 +/-    0.86      15.7 +/-    0.86  0.040 / 0.060
G15     78.7           56.1                8.2 +/-    0.61       9.7 +/-    0.61  0.070 / 0.160
G16     292.1          15.8                6.9 +/-    3.62      16.8 +/-    3.62  0.080 / 0.170
G20     276.1          54.2               11.0 +/-    0.65      13.3 +/-    0.65  0.030 / 0.060
G21     337.6          61.7                9.4 +/-    0.75      10.6 +/-    0.75  0.040 / 0.050
G26     265.4          14.3                8.8 +/-    1.32      22.3 +/-    1.32  0.190 / 0.890
G29     164.7          47.8               11.1 +/-    0.76      14.4 +/-    0.76  0.150 / 0.640