PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-19:43:10
G01     72.1           33.1               11.0 +/-    0.76      18.1 +/-    0.76  0.100 / 0.240
G07     136.8          32.5               14.2 +/-    0.82      23.7 +/-    0.82  0.080 / 0.320
G11     55.1           32.3                9.2 +/-    0.98      15.4 +/-    0.98  0.040 / 0.040
G13     276.1          37.6               13.3 +/-    0.90      20.2 +/-    0.90  0.030 / 0.050
G15     303.9          14.8                9.4 +/-    2.04      23.5 +/-    2.04  0.030 / 0.060
G17     230.5          64.6               15.1 +/-    1.02      16.5 +/-    1.02  0.040 / 0.050
G18     50.2           19.0                9.1 +/-    0.69      20.6 +/-    0.69  0.060 / 0.110
G19     223.4          39.6               13.2 +/-    2.13      19.4 +/-    2.13  0.060 / 0.120
G28     18.1           59.5               10.9 +/-    0.55      12.5 +/-    0.55  0.040 / 0.100
G30     134.2          61.9               13.3 +/-    0.81      14.8 +/-    0.81  0.060 / 0.100