PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-20:12:50
G01     76.5           33.3               22.4 +/-    0.60      36.8 +/-    0.60  0.060 / 0.110
G07     134.5          35.8               25.9 +/-    1.46      40.5 +/-    1.46  0.060 / 0.130
G11     58.2           34.8               19.1 +/-    0.72      30.5 +/-    0.72  0.070 / 0.100
G13     280.9          37.7               23.9 +/-    0.85      36.1 +/-    0.85  0.050 / 0.090
G15     306.8          14.0               16.7 +/-    2.18      42.4 +/-    2.18  0.130 / 0.190
G17     225.6          60.7               28.2 +/-    0.55      31.8 +/-    0.55  0.100 / 0.270
G18     53.4           20.7               17.1 +/-    1.18      37.1 +/-    1.18  0.050 / 0.050
G19     220.9          36.4               28.3 +/-    1.28      43.8 +/-    1.28  0.040 / 0.050
G28     11.5           60.2               19.7 +/-    0.76      22.3 +/-    0.76  0.030 / 0.070
G30     129.7          65.1               25.6 +/-    0.48      27.9 +/-    0.48  0.030 / 0.080