PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-20:28:00
G02     318.1          80.5               13.9 +/-    0.62      14.1 +/-    0.62  0.160 / 0.280
G05     165.6          30.3               11.1 +/-    1.50      19.3 +/-    1.50  0.170 / 0.300
G06     41.2           42.0               12.8 +/-    0.88      18.0 +/-    0.88  0.060 / 0.100
G12     315.5          70.6               12.2 +/-    0.88      12.9 +/-    0.88  0.090 / 0.100
G17     83.1           14.0                9.9 +/-    1.43      25.2 +/-    1.43  0.140 / 0.240
G19     70.2           31.6                9.2 +/-    1.72      15.7 +/-    1.72  0.110 / 0.190
G24     230.1          24.9               11.6 +/-    2.90      22.7 +/-    2.90  0.040 / 0.040
G25     317.6          25.7                9.5 +/-    1.33      18.2 +/-    1.33  0.030 / 0.040