PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-16:57:50
G01     39.4           14.0                6.5 +/-    1.84      16.7 +/-    1.84  0.110 / 0.300
G06     174.0          41.1               10.7 +/-    0.92      15.4 +/-    0.92  0.130 / 0.300
G13     234.6          21.0                9.4 +/-    2.24      20.2 +/-    2.24  0.040 / 0.080
G15     268.4          11.4                9.0 +/-    2.58      24.3 +/-    2.58  0.040 / 0.060
G17     0.8            70.2                8.7 +/-    0.53       9.2 +/-    0.53  0.070 / 0.190
G19     286.0          71.0                9.3 +/-    0.36       9.7 +/-    0.36  0.090 / 0.150
G24     315.6          20.7                7.0 +/-    2.86      15.0 +/-    2.86  0.040 / 0.040
G28     68.7           50.0                8.2 +/-    0.39      10.4 +/-    0.39  0.030 / 0.030
G30     154.5          23.4               11.3 +/-    0.84      22.8 +/-    0.84  0.040 / 0.040