PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-18:57:50
G08     313.9          16.6               13.0 +/-    2.85      31.2 +/-    2.85  0.060 / 0.070
G10     319.9          57.6               13.8 +/-    0.87      16.0 +/-    0.87  0.070 / 0.060
G14     215.4          26.0               17.2 +/-    1.72      32.9 +/-    1.72  0.030 / 0.040
G15     45.9           14.6               13.2 +/-    2.05      33.1 +/-    2.05  0.030 / 0.050
G18     31.1           61.1               15.7 +/-    1.57      17.6 +/-    1.57  0.070 / 0.090
G20     81.3           10.3               15.8 +/-    3.32      43.8 +/-    3.32  0.050 / 0.100
G21     128.2          58.0               19.0 +/-    0.61      22.0 +/-    0.61  0.270 / 0.580
G24     82.3           30.4               14.2 +/-    1.35      24.6 +/-    1.35  0.210 / 0.460
G27     280.8          38.1               15.5 +/-    2.29      23.2 +/-    2.29  0.180 / 0.160
G32     219.0          44.9               17.7 +/-    1.56      23.9 +/-    1.56  0.090 / 0.250