PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-03:12:30
G10     292.1          50.0               10.2 +/-    2.76      12.9 +/-    2.76  0.050 / 0.090
G15     47.1           33.0                6.9 +/-    1.23      11.5 +/-    1.23  0.050 / 0.080
G20     329.8          64.0                9.9 +/-    0.57      10.9 +/-    0.57  0.040 / 0.030
G21     80.4           76.6                9.7 +/-    0.65      10.0 +/-    0.65  0.040 / 0.040
G24     100.4          25.0               10.9 +/-    1.57      21.3 +/-    1.57  0.230 / 0.350
G27     304.1          32.5                8.1 +/-    2.25      13.5 +/-    2.25  0.240 / 0.430
G29     168.7          11.7               12.5 +/-    3.64      33.6 +/-    3.64  0.090 / 0.160
G32     208.8          30.2               13.9 +/-    1.32      24.2 +/-    1.32  0.070 / 0.120