PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-19:43:00
G01     93.3           31.1               23.2 +/-    0.49      39.7 +/-    0.49  0.080 / 0.120
G07     122.9          48.3               24.0 +/-    0.65      30.9 +/-    0.65  0.090 / 0.140
G08     42.3           12.3               14.0 +/-    1.65      37.2 +/-    1.65  0.120 / 0.180
G11     73.2           41.5               22.0 +/-    0.66      31.3 +/-    0.66  0.090 / 0.190
G13     297.8          34.9               22.1 +/-    1.65      35.1 +/-    1.65  0.110 / 0.190
G17     213.4          47.0               27.5 +/-    0.88      36.1 +/-    0.88  0.180 / 0.250
G18     67.0           24.5               19.5 +/-    0.75      38.5 +/-    0.75  0.040 / 0.050
G19     213.6          23.5               29.3 +/-    2.69      59.2 +/-    2.69  0.040 / 0.050
G28     344.5          61.8               20.1 +/-    0.58      22.4 +/-    0.58  0.040 / 0.060
G30     96.9           76.6               22.6 +/-    0.99      23.1 +/-    0.99  0.030 / 0.050