PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/03-18:28:10
G10     253.6          30.9                9.8 +/-    2.50      16.9 +/-    2.50  0.040 / 0.060
G13     50.0           26.7                8.5 +/-    0.61      16.1 +/-    0.61  0.040 / 0.070
G15     78.7           56.3                7.6 +/-    0.57       9.0 +/-    0.57  0.060 / 0.170
G20     276.4          54.2               10.8 +/-    0.63      13.0 +/-    0.63  0.080 / 0.160
G21     337.9          61.9                9.1 +/-    0.74      10.2 +/-    0.74  0.040 / 0.040
G26     265.0          14.1                8.9 +/-    0.92      22.6 +/-    0.92  0.040 / 0.040
G29     164.7          47.2               10.1 +/-    0.56      13.2 +/-    0.56  0.030 / 0.050