PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/24-20:57:40
G01     319.2          17.3               12.6 +/-    1.24      29.7 +/-    1.24  0.130 / 0.270
G08     257.7          13.5                9.9 +/-    4.37      25.5 +/-    4.37  0.170 / 0.190
G10     77.9           54.3               10.9 +/-    1.03      13.1 +/-    1.03  0.040 / 0.070
G11     303.9          22.8               12.5 +/-    0.78      25.6 +/-    0.78  0.050 / 0.070
G14     296.3          70.7               11.2 +/-    0.55      11.7 +/-    0.55  0.040 / 0.040
G18     101.7          28.4               12.4 +/-    1.00      22.4 +/-    1.00  0.040 / 0.040
G31     178.7          38.8               14.3 +/-    0.85      21.2 +/-    0.85  0.020 / 0.020
G32     1.8            68.8               11.7 +/-    0.42      12.4 +/-    0.42  0.030 / 0.020