PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-23:58:10
G05     50.0           14.2                8.2 +/-    2.95      20.7 +/-    2.95  0.120 / 0.250
G10     238.1          14.7               16.5 +/-    1.44      41.2 +/-    1.44  0.150 / 0.220
G13     71.7           36.0               11.2 +/-    0.69      17.5 +/-    0.69  0.030 / 0.060
G15     123.3          54.0               13.2 +/-    0.62      15.9 +/-    0.62  0.040 / 0.070
G16     310.2          14.2                9.9 +/-    1.27      25.1 +/-    1.27  0.060 / 0.100
G20     246.3          24.2               14.3 +/-    0.79      28.5 +/-    0.79  0.050 / 0.100
G21     315.3          48.3               11.6 +/-    0.86      15.0 +/-    0.86  0.100 / 0.300
G26     282.7          20.5               13.2 +/-    3.47      28.7 +/-    3.47  0.140 / 0.430
G29     158.6          70.1               13.0 +/-    0.41      13.7 +/-    0.41  0.030 / 0.040