PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-16:12:50
G01     53.2           27.2                6.9 +/-    1.04      12.9 +/-    1.04  0.080 / 0.310
G06     178.4          20.2               10.2 +/-    1.94      22.4 +/-    1.94  0.080 / 0.290
G07     143.9          12.6                9.4 +/-    3.69      24.7 +/-    3.69  0.040 / 0.060
G11     45.6           18.9                6.6 +/-    1.66      15.0 +/-    1.66  0.030 / 0.060
G13     254.1          33.4                8.3 +/-    2.14      13.5 +/-    2.14  0.090 / 0.190
G15     287.5          16.3                6.5 +/-    1.84      15.7 +/-    1.84  0.080 / 0.200
G17     278.4          77.8               10.2 +/-    0.85      10.4 +/-    0.85  0.060 / 0.130
G19     239.5          57.4                9.7 +/-    0.96      11.2 +/-    0.96  0.060 / 0.120
G28     36.6           57.7                8.8 +/-    0.65      10.2 +/-    0.65  0.030 / 0.030
G30     147.0          43.8               10.2 +/-    0.78      14.0 +/-    0.78  0.030 / 0.030