PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-05:27:40
G01     76.8           33.2                4.3 +/-    0.79       7.0 +/-    0.79  0.070 / 0.080
G07     134.2          33.5                8.5 +/-    1.31      13.9 +/-    1.31  0.070 / 0.110
G11     56.1           32.8                2.3 +/-    0.82       3.8 +/-    0.82  0.050 / 0.090
G13     280.4          38.3                3.7 +/-    0.82       5.5 +/-    0.82  0.050 / 0.070
G15     308.3          13.0                3.2 +/-    1.56       8.5 +/-    1.56  0.030 / 0.030
G17     225.3          67.4                6.6 +/-    0.76       7.1 +/-    0.76  0.030 / 0.040
G19     220.4          35.0                6.2 +/-    0.74       9.8 +/-    0.74  0.040 / 0.040
G28     6.3            60.9                3.1 +/-    0.73       3.5 +/-    0.73  0.030 / 0.040
G30     129.1          68.3                5.7 +/-    0.36       6.1 +/-    0.36  0.050 / 0.120