PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/27-20:12:30
G02     30.2           57.7                9.4 +/-    0.46      10.9 +/-    0.46  0.030 / 0.030
G05     141.0          61.3               11.3 +/-    1.02      12.7 +/-    1.02  0.030 / 0.040
G06     53.8           14.9                8.4 +/-    2.82      21.0 +/-    2.82  0.030 / 0.050
G12     192.2          66.4                8.7 +/-    1.29       9.4 +/-    1.29  0.040 / 0.050
G19     98.2           12.9               11.4 +/-    1.24      29.8 +/-    1.24  0.030 / 0.060
G25     297.9          53.3                9.7 +/-    0.79      11.7 +/-    0.79  0.030 / 0.060
G29     306.0          26.0                8.5 +/-    2.41      16.2 +/-    2.41  0.050 / 0.070