PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-01:28:10
G10     293.4          51.2                9.3 +/-    3.13      11.6 +/-    3.13  0.080 / 0.110
G15     46.7           30.7                7.2 +/-    1.23      12.4 +/-    1.23  0.060 / 0.140
G20     342.7          65.2               10.0 +/-    0.66      10.9 +/-    0.66  0.100 / 0.120
G21     80.7           76.2               10.0 +/-    0.67      10.3 +/-    0.67  0.120 / 0.110
G24     102.2          25.1               11.9 +/-    1.49      23.2 +/-    1.49  0.030 / 0.040
G27     305.1          32.1                8.2 +/-    1.57      13.8 +/-    1.57  0.040 / 0.040
G29     167.4          10.2               11.9 +/-    1.76      33.2 +/-    1.76  0.050 / 0.100
G32     209.1          26.9               12.8 +/-    1.61      24.0 +/-    1.61  0.050 / 0.110