PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-21:12:30
G01     224.7          15.8               11.9 +/-    3.03      29.1 +/-    3.03  0.120 / 0.200
G03     281.9          68.9               10.8 +/-    0.57      11.5 +/-    0.57  0.150 / 0.180
G14     88.5           22.3               10.5 +/-    1.27      21.9 +/-    1.27  0.060 / 0.070
G16     146.7          46.0               13.1 +/-    0.91      17.4 +/-    0.91  0.050 / 0.070
G22     212.6          68.9               11.5 +/-    0.64      12.2 +/-    0.64  0.110 / 0.290
G23     307.6          36.9                8.7 +/-    1.28      13.4 +/-    1.28  0.090 / 0.260
G26     99.0           55.4               10.1 +/-    0.30      12.0 +/-    0.30  0.040 / 0.060
G31     44.7           34.9                8.9 +/-    1.40      14.2 +/-    1.40  0.040 / 0.050