PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-00:28:00
G10     255.6          30.7               13.1 +/-    1.28      22.6 +/-    1.28  0.040 / 0.040
G13     48.8           26.4               10.9 +/-    2.27      20.7 +/-    2.27  0.040 / 0.040
G15     78.9           57.5               12.4 +/-    0.46      14.4 +/-    0.46  0.130 / 0.540
G16     288.6          15.3                8.6 +/-    2.61      21.2 +/-    2.61  0.150 / 0.500
G20     264.7          37.2                9.8 +/-    3.45      14.9 +/-    3.45  0.130 / 0.120
G21     339.8          63.5               11.7 +/-    0.61      12.9 +/-    0.61  0.090 / 0.190
G26     261.0          13.2               11.4 +/-    2.88      29.6 +/-    2.88  0.040 / 0.030
G29     166.6          44.6               12.7 +/-    0.60      17.2 +/-    0.60  0.040 / 0.040