PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-16:43:00
G08     293.3          23.8                6.0 +/-    2.02      12.1 +/-    2.02  0.050 / 0.080
G10     4.7            62.8                8.1 +/-    1.03       9.0 +/-    1.03  0.050 / 0.070
G14     228.0          45.4                7.7 +/-    2.06      10.3 +/-    2.06  0.100 / 0.090
G18     317.4          11.1               -4.2 +/-   21.84     -11.6 +/-   21.84  0.090 / 0.130
G20     62.8           53.2                8.0 +/-    1.05       9.8 +/-    1.05  0.120 / 0.110
G21     145.0          38.7               10.6 +/-    0.79      15.8 +/-    0.79  0.120 / 0.090
G24     54.5           23.5                7.2 +/-    2.16      14.6 +/-    2.16  0.040 / 0.030
G27     259.6          32.6                4.1 +/-    2.04       6.9 +/-    2.04  0.040 / 0.030
G32     241.3          65.1                8.4 +/-    0.51       9.1 +/-    0.51  0.130 / 0.140