PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-01:58:10
G10     269.1          39.4               13.5 +/-    0.79      19.8 +/-    0.79  0.170 / 0.270
G13     41.1           16.8                7.9 +/-    0.70      18.8 +/-    0.70  0.180 / 0.330
G15     58.5           49.1                9.1 +/-    0.49      11.6 +/-    0.49  0.190 / 0.500
G16     276.0          11.6               11.1 +/-    3.31      29.9 +/-    3.31  0.230 / 0.590
G20     287.2          53.3               10.0 +/-    0.66      12.2 +/-    0.66  0.120 / 0.220
G21     4.9            72.6               11.7 +/-    0.47      12.2 +/-    0.47  0.120 / 0.220
G24     117.8          15.4               12.8 +/-    1.08      31.6 +/-    1.08  0.040 / 0.040
G27     317.8          20.3                8.7 +/-    1.80      18.9 +/-    1.80  0.040 / 0.050
G29     168.5          30.1               11.3 +/-    0.94      19.7 +/-    0.94  0.060 / 0.070
G32     204.1          12.4               13.2 +/-    2.23      34.9 +/-    2.23  0.060 / 0.080