PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-01:12:30
G10     253.0          30.1               11.9 +/-    1.84      20.7 +/-    1.84  0.090 / 0.110
G13     50.6           27.3                5.9 +/-    2.26      10.9 +/-    2.26  0.070 / 0.150
G15     79.3           56.3               10.0 +/-    0.41      11.7 +/-    0.41  0.060 / 0.040
G16     294.3          15.1                5.7 +/-    2.10      14.1 +/-    2.10  0.040 / 0.050
G20     273.8          52.4               11.4 +/-    2.49      14.0 +/-    2.49  0.090 / 0.140
G21     337.6          61.8                9.1 +/-    0.58      10.1 +/-    0.58  0.060 / 0.190
G26     266.4          14.4                8.8 +/-    1.64      22.1 +/-    1.64  0.100 / 0.420
G29     163.6          45.5               11.5 +/-    1.23      15.4 +/-    1.23  0.120 / 0.470