PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-16:43:10
G08     307.4          20.6                4.5 +/-    1.44       9.7 +/-    1.44  0.040 / 0.040
G10     334.4          60.4                5.3 +/-    0.72       5.9 +/-    0.72  0.040 / 0.040
G14     218.1          32.0                7.0 +/-    1.67      11.8 +/-    1.67  0.040 / 0.030
G15     47.0           11.1                5.8 +/-    2.25      15.9 +/-    2.25  0.030 / 0.030
G20     39.0           60.0                5.6 +/-    0.76       6.4 +/-    0.76  0.140 / 0.190
G21     135.0          53.2                8.5 +/-    0.69      10.4 +/-    0.69  0.150 / 0.210
G24     68.8           27.9                4.7 +/-    1.62       8.5 +/-    1.62  0.080 / 0.080
G27     277.1          36.7                8.4 +/-    1.31      12.9 +/-    1.31  0.060 / 0.080
G32     223.6          52.0                7.9 +/-    2.19       9.8 +/-    2.19  0.190 / 0.250