PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-21:28:10
G03     252.7          70.1                9.6 +/-    0.63      10.2 +/-    0.63  0.140 / 0.410
G09     301.1          16.3                6.7 +/-    3.13      16.2 +/-    3.13  0.150 / 0.490
G14     96.1           16.7                9.9 +/-    1.08      23.6 +/-    1.08  0.030 / 0.050
G16     136.8          54.4               11.1 +/-    0.59      13.3 +/-    0.59  0.030 / 0.040
G22     199.7          60.3               10.3 +/-    0.70      11.7 +/-    0.70  0.050 / 0.050
G23     314.2          43.5                8.1 +/-    1.33      11.2 +/-    1.33  0.040 / 0.060
G26     81.5           55.3                7.3 +/-    0.72       8.7 +/-    0.72  0.050 / 0.040
G31     48.6           27.4                5.4 +/-    1.42      10.0 +/-    1.42  0.030 / 0.050