PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-23:58:00
G10     250.9          28.4               13.6 +/-    1.72      24.6 +/-    1.72  0.080 / 0.130
G13     52.7           28.6                8.8 +/-    1.97      15.9 +/-    1.97  0.080 / 0.120
G15     84.5           57.1               11.7 +/-    1.00      13.7 +/-    1.00  0.060 / 0.060
G16     296.2          15.4                7.8 +/-    1.91      19.1 +/-    1.91  0.040 / 0.040
G20     270.4          50.7               12.0 +/-    2.57      15.1 +/-    2.57  0.090 / 0.130
G21     334.1          59.9               10.5 +/-    0.95      12.0 +/-    0.95  0.060 / 0.180
G26     268.3          15.3                9.8 +/-    2.03      24.3 +/-    2.03  0.030 / 0.040
G29     163.1          48.8               13.2 +/-    0.49      16.9 +/-    0.49  0.030 / 0.040