PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-21:43:00
G10     279.9          44.3               14.9 +/-    0.80      20.3 +/-    0.80  0.040 / 0.040
G13     38.5           10.7               12.3 +/-    3.20      33.9 +/-    3.20  0.050 / 0.040
G15     50.2           39.4               11.0 +/-    0.75      16.1 +/-    0.75  0.060 / 0.160
G18     328.5          66.9               12.7 +/-    0.85      13.7 +/-    0.85  0.090 / 0.150
G20     62.6           26.3               10.5 +/-    1.26      19.8 +/-    1.26  0.090 / 0.150
G21     50.7           76.6               14.6 +/-    0.41      14.9 +/-    0.41  0.110 / 0.180
G24     111.5          20.5               13.5 +/-    0.87      29.3 +/-    0.87  0.080 / 0.170
G27     310.6          28.5               14.6 +/-    1.16      26.5 +/-    1.16  0.090 / 0.170
G29     166.7          15.4               16.4 +/-    3.93      40.4 +/-    3.93  0.070 / 0.130
G32     207.5          17.1               19.7 +/-    2.02      46.6 +/-    2.02  0.080 / 0.110