PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-17:58:00
G01     103.1          27.6               13.5 +/-    0.88      24.9 +/-    0.88  0.080 / 0.130
G07     112.5          55.6               13.2 +/-    0.36      15.6 +/-    0.36  0.080 / 0.140
G08     41.9           18.7                9.4 +/-    1.19      21.3 +/-    1.19  0.030 / 0.050
G09     174.0          10.1               14.2 +/-    1.05      39.4 +/-    1.05  0.030 / 0.050
G11     84.3           43.0               12.7 +/-    0.34      17.7 +/-    0.34  0.030 / 0.040
G13     306.4          30.9               12.0 +/-    1.70      20.7 +/-    1.70  0.030 / 0.030
G17     208.3          39.3               14.0 +/-    2.28      20.6 +/-    2.28  0.040 / 0.080
G18     76.4           24.8               11.6 +/-    0.95      22.9 +/-    0.95  0.040 / 0.080
G28     326.2          61.5               11.5 +/-    1.24      12.9 +/-    1.24  0.070 / 0.180
G30     47.5           79.4               12.6 +/-    0.64      12.8 +/-    0.64  0.090 / 0.160