PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/30-20:42:50
G01     258.8          38.2               11.6 +/-    3.11      17.4 +/-    3.11  0.070 / 0.040
G03     316.5          38.3                8.4 +/-    0.98      12.6 +/-    0.98  0.060 / 0.040
G10     134.6          10.0               13.0 +/-    2.82      36.4 +/-    2.82  0.200 / 0.270
G11     243.5          16.1               13.8 +/-    2.22      33.3 +/-    2.22  0.160 / 0.310
G14     53.5           44.7                8.4 +/-    0.89      11.4 +/-    0.89  0.110 / 0.170
G22     310.7          60.0                9.0 +/-    1.10      10.2 +/-    1.10  0.080 / 0.160
G25     44.5           13.4                6.7 +/-    2.99      17.2 +/-    2.99  0.030 / 0.030
G26     142.9          32.2               14.3 +/-    1.40      24.0 +/-    1.40  0.020 / 0.020
G31     43.4           66.3                9.2 +/-    0.48       9.9 +/-    0.48  0.060 / 0.090
G32     71.8           27.2                6.5 +/-    1.97      12.2 +/-    1.97  0.060 / 0.080