PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-19:42:40
G01     38.0           10.7               13.4 +/-    1.79      36.9 +/-    1.79  0.080 / 0.160
G02     199.8          15.0               17.1 +/-    1.95      42.4 +/-    1.95  0.060 / 0.160
G06     171.6          48.5               16.5 +/-    1.28      21.3 +/-    1.28  0.040 / 0.050
G13     231.6          16.9               17.2 +/-    2.41      40.9 +/-    2.41  0.030 / 0.040
G17     10.3           65.9               13.4 +/-    0.66      14.5 +/-    0.66  0.090 / 0.190
G19     296.5          70.2               14.8 +/-    0.62      15.6 +/-    0.62  0.120 / 0.190
G24     313.2          25.8               13.7 +/-    3.57      26.3 +/-    3.57  0.060 / 0.070
G28     81.3           42.9               14.5 +/-    0.75      20.1 +/-    0.75  0.040 / 0.090
G30     156.3          20.0               17.4 +/-    3.18      38.2 +/-    3.18  0.040 / 0.040