PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-18:42:50
G01     55.4           28.7               10.3 +/-    0.82      18.5 +/-    0.82  0.110 / 0.380
G06     178.2          20.3              -22.2 +/-   30.39     -48.5 +/-   30.39  0.120 / 0.380
G07     144.3          18.3               13.8 +/-    2.14      31.6 +/-    2.14  0.100 / 0.240
G11     46.5           20.4               10.0 +/-    1.40      21.9 +/-    1.40  0.090 / 0.250
G13     257.1          33.4               14.7 +/-    1.84      24.1 +/-    1.84  0.030 / 0.040
G15     290.5          15.9               12.4 +/-    2.93      30.2 +/-    2.93  0.030 / 0.030
G17     273.2          76.9               14.6 +/-    0.90      15.0 +/-    0.90  0.040 / 0.060
G19     237.5          52.8               15.4 +/-    1.14      18.8 +/-    1.14  0.050 / 0.060
G28     43.5           55.1               12.1 +/-    0.52      14.5 +/-    0.52  0.040 / 0.050
G30     146.6          47.3               14.7 +/-    1.20      19.1 +/-    1.20  0.030 / 0.060