PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-01:42:40
G10     269.2          39.5               14.1 +/-    1.48      20.6 +/-    1.48  0.170 / 0.240
G13     41.0           16.7                8.0 +/-    1.75      19.1 +/-    1.75  0.150 / 0.230
G15     58.5           49.1                9.4 +/-    0.66      12.0 +/-    0.66  0.180 / 0.520
G16     275.8          11.5               11.0 +/-    1.81      29.8 +/-    1.81  0.190 / 0.540
G20     285.1          51.4               15.0 +/-    1.00      18.5 +/-    1.00  0.120 / 0.210
G21     5.2            72.7               12.1 +/-    0.41      12.6 +/-    0.41  0.100 / 0.180
G24     117.6          15.5               12.8 +/-    0.95      31.4 +/-    0.95  0.040 / 0.040
G27     317.7          20.4               10.0 +/-    3.07      21.7 +/-    3.07  0.040 / 0.050
G29     168.6          30.0               12.5 +/-    1.25      21.9 +/-    1.25  0.060 / 0.070
G32     204.1          12.6               16.3 +/-    2.29      42.9 +/-    2.29  0.060 / 0.070