PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-01:28:00
G02     59.9           32.2               12.4 +/-    0.88      20.8 +/-    0.88  0.060 / 0.110
G05     57.1           59.9               13.0 +/-    0.69      14.8 +/-    0.69  0.070 / 0.160
G12     184.1          31.8               19.0 +/-    1.31      32.0 +/-    1.31  0.130 / 0.390
G13     128.2          15.2               20.6 +/-    1.65      51.1 +/-    1.65  0.140 / 0.430
G15     164.1          12.0               24.3 +/-    2.18      64.9 +/-    2.18  0.030 / 0.040
G21     271.1          16.8               18.0 +/-    3.34      42.7 +/-    3.34  0.030 / 0.050
G25     237.6          51.9               16.2 +/-    1.13      19.9 +/-    1.13  0.040 / 0.060
G29     327.6          53.7               13.0 +/-    0.69      15.7 +/-    0.69  0.050 / 0.070