PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-19:12:50
G01     250.0          34.7               14.2 +/-    1.61      22.7 +/-    1.61  0.040 / 0.040
G03     315.6          46.6               13.2 +/-    0.64      17.4 +/-    0.64  0.040 / 0.040
G11     238.3          12.3               11.9 +/-    4.70      31.5 +/-    4.70  0.060 / 0.080
G14     60.8           40.9               10.6 +/-    0.83      15.2 +/-    0.83  0.050 / 0.090
G22     302.9          67.6               12.4 +/-    0.65      13.3 +/-    0.65  0.040 / 0.040
G23     287.7          20.4               12.5 +/-    2.43      27.2 +/-    2.43  0.040 / 0.040
G25     39.4           9.9                 7.8 +/-    1.68      21.7 +/-    1.68  0.070 / 0.100
G26     135.6          38.8               15.2 +/-    0.51      22.6 +/-    0.51  0.120 / 0.100
G31     40.6           57.6               11.4 +/-    0.59      13.2 +/-    0.59  0.110 / 0.340
G32     78.4           22.0               12.1 +/-    1.74      25.3 +/-    1.74  0.080 / 0.480