PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-16:58:00
G01     250.1          34.7               11.8 +/-    1.19      18.8 +/-    1.19  0.030 / 0.040
G03     315.5          48.6                8.4 +/-    0.79      10.8 +/-    0.79  0.040 / 0.040
G11     239.4          12.3               11.3 +/-    1.97      29.9 +/-    1.97  0.050 / 0.090
G14     60.0           41.7                7.6 +/-    0.90      10.8 +/-    0.90  0.060 / 0.090
G22     301.7          69.1                9.3 +/-    0.81       9.9 +/-    0.81  0.070 / 0.280
G23     288.2          21.5               10.8 +/-    1.41      23.0 +/-    1.41  0.130 / 0.390
G25     39.6           10.1                6.3 +/-    2.56      17.5 +/-    2.56  0.040 / 0.030
G26     134.3          39.2               13.4 +/-    1.20      19.8 +/-    1.20  0.040 / 0.040
G31     40.8           56.4                9.2 +/-    0.51      10.8 +/-    0.51  0.040 / 0.050
G32     78.7           21.5                8.5 +/-    2.29      18.0 +/-    2.29  0.050 / 0.050