PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/29-00:12:30
G10     289.3          49.8                8.8 +/-    3.10      11.1 +/-    3.10  0.090 / 0.100
G15     47.5           33.7                7.9 +/-    1.42      12.8 +/-    1.42  0.070 / 0.090
G20     335.8          65.0                9.6 +/-    0.69      10.5 +/-    0.69  0.040 / 0.040
G21     67.2           77.1               10.4 +/-    0.31      10.6 +/-    0.31  0.040 / 0.040
G24     105.4          23.8               10.3 +/-    1.30      20.7 +/-    1.30  0.050 / 0.090
G27     307.7          30.6                9.0 +/-    1.36      15.6 +/-    1.36  0.070 / 0.070
G29     167.7          13.3               11.1 +/-    2.06      28.7 +/-    2.06  0.090 / 0.190
G32     208.0          24.6               13.6 +/-    1.59      26.8 +/-    1.59  0.090 / 0.150