PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-03:12:40
G10     279.3          45.6               11.2 +/-    1.41      14.9 +/-    1.41  0.130 / 0.150
G15     50.5           39.4                8.8 +/-    1.18      13.0 +/-    1.18  0.150 / 0.160
G20     319.0          63.7               10.0 +/-    1.07      11.0 +/-    1.07  0.060 / 0.070
G21     37.0           76.5                9.9 +/-    1.00      10.2 +/-    1.00  0.060 / 0.060
G24     111.7          20.0                9.4 +/-    1.33      20.8 +/-    1.33  0.040 / 0.040
G27     313.7          25.5                7.7 +/-    2.36      14.8 +/-    2.36  0.040 / 0.030
G29     167.1          19.2               10.5 +/-    1.88      23.5 +/-    1.88  0.060 / 0.060
G32     206.5          16.0               14.0 +/-    2.46      33.9 +/-    2.46  0.040 / 0.060