PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-01:57:50
G07     43.6           69.0                4.9 +/-    0.14       5.2 +/-    0.14  0.030 / 0.040
G08     53.4           41.3                3.5 +/-    0.54       4.9 +/-    0.54  0.030 / 0.030
G09     177.3          40.7                7.6 +/-    0.80      11.0 +/-    0.80  0.210 / 0.420
G11     121.9          32.6                8.1 +/-    0.43      13.5 +/-    0.43  0.200 / 0.340
G17     198.2          11.8                4.4 +/-   10.36      11.9 +/-   10.36  0.090 / 0.170
G18     105.0          14.0                9.9 +/-    1.01      25.3 +/-    1.01  0.070 / 0.160
G23     161.4          14.8                8.1 +/-    2.49      20.3 +/-    2.49  0.050 / 0.080
G27     39.0           14.1                1.6 +/-    1.20       4.0 +/-    1.20  0.070 / 0.070
G28     265.7          47.8                5.2 +/-    0.76       6.8 +/-    0.76  0.030 / 0.040
G30     325.4          55.1                3.4 +/-    0.64       4.1 +/-    0.64  0.050 / 0.040