PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-01:57:30
G10     250.8          26.8                9.7 +/-    2.11      18.2 +/-    2.11  0.130 / 0.310
G13     53.4           29.8                9.2 +/-    1.76      16.2 +/-    1.76  0.110 / 0.230
G15     88.5           58.3               10.3 +/-    0.52      11.9 +/-    0.52  0.040 / 0.050
G16     294.3          15.8                6.1 +/-    1.40      14.8 +/-    1.40  0.040 / 0.050
G20     266.8          46.9               11.2 +/-    2.81      14.6 +/-    2.81  0.090 / 0.150
G21     332.9          59.8                8.8 +/-    0.50      10.0 +/-    0.50  0.070 / 0.130
G26     266.1          15.6                8.5 +/-    1.50      20.9 +/-    1.50  0.030 / 0.040
G29     165.3          50.7               11.2 +/-    0.63      14.0 +/-    0.63  0.030 / 0.040