PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-01:58:00
G10     249.2          25.5               14.6 +/-    0.79      28.2 +/-    0.79  0.040 / 0.050
G13     55.1           30.8               12.2 +/-    1.00      21.0 +/-    1.00  0.040 / 0.050
G15     92.3           58.4               12.8 +/-    0.63      14.7 +/-    0.63  0.120 / 0.560
G16     296.1          15.9                9.9 +/-    2.25      24.2 +/-    2.25  0.130 / 0.700
G20     265.0          46.2               12.9 +/-    1.06      17.0 +/-    1.06  0.070 / 0.110
G21     330.7          58.5                8.9 +/-    6.61      10.3 +/-    6.61  0.090 / 0.130
G26     267.9          16.3               13.2 +/-    5.05      31.7 +/-    5.05  0.040 / 0.060
G29     164.8          52.8               13.3 +/-    0.57      16.2 +/-    0.57  0.030 / 0.050