PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-11:12:30
G02     35.2           53.4                8.6 +/-    0.36      10.4 +/-    0.36  0.030 / 0.050
G05     138.1          64.0               11.9 +/-    0.95      13.1 +/-    0.95  0.040 / 0.040
G06     54.8           14.8                5.9 +/-    3.06      14.9 +/-    3.06  0.040 / 0.050
G12     196.3          65.2               10.1 +/-    1.16      11.0 +/-    1.16  0.050 / 0.060
G25     283.9          59.8               26.7 +/-    0.80      30.4 +/-    0.80  0.030 / 0.030
G29     310.0          31.3                5.3 +/-    1.36       9.0 +/-    1.36  0.030 / 0.040