PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-17:58:00
G01     78.8           33.3               12.3 +/-    1.00      20.2 +/-    1.00  0.200 / 0.250
G07     133.2          37.4               14.4 +/-    0.24      21.9 +/-    0.24  0.130 / 0.250
G11     59.3           35.4               12.4 +/-    0.96      19.5 +/-    0.96  0.040 / 0.070
G13     283.1          37.7               13.2 +/-    1.43      20.0 +/-    1.43  0.050 / 0.070
G15     309.1          12.9               12.5 +/-    1.72      32.7 +/-    1.72  0.030 / 0.030
G17     223.5          60.6               15.1 +/-    1.88      17.0 +/-    1.88  0.030 / 0.030
G18     54.8           21.3               12.4 +/-    4.32      26.5 +/-    4.32  0.060 / 0.090
G19     219.7          33.9               16.5 +/-    1.55      26.8 +/-    1.55  0.060 / 0.100
G28     7.6            60.6               13.0 +/-    1.64      14.7 +/-    1.64  0.340 / 0.280
G30     126.8          67.9               15.0 +/-    0.84      16.0 +/-    0.84  0.270 / 0.300