PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-14:43:00
G05     52.6           10.3                5.9 +/-    5.06      16.3 +/-    5.06  0.120 / 0.310
G10     244.0          22.9               10.0 +/-    2.19      20.5 +/-    2.19  0.120 / 0.300
G13     60.8           32.3                6.5 +/-    1.04      10.9 +/-    1.04  0.130 / 0.220
G15     97.7           56.7                8.5 +/-    0.67       9.9 +/-    0.67  0.140 / 0.190
G20     262.0          48.1                7.9 +/-    1.30      10.2 +/-    1.30  0.080 / 0.070
G21     325.8          54.7                4.7 +/-    1.71       5.7 +/-    1.71  0.070 / 0.080
G26     276.2          18.0                6.2 +/-    2.28      14.4 +/-    2.28  0.030 / 0.040
G29     160.8          60.5               10.2 +/-    0.88      11.5 +/-    0.88  0.040 / 0.040