PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-17:42:50
G10     253.7          28.4               10.0 +/-    2.20      18.1 +/-    2.20  0.040 / 0.040
G13     51.3           29.0                9.2 +/-    1.84      16.4 +/-    1.84  0.030 / 0.040
G15     77.8           55.7               10.6 +/-    1.22      12.5 +/-    1.22  0.100 / 0.420
G16     298.4          13.0                7.4 +/-    1.70      19.4 +/-    1.70  0.100 / 0.410
G18     276.4          59.3               10.3 +/-    1.80      11.7 +/-    1.80  0.050 / 0.050
G20     44.2           46.9                8.7 +/-    0.95      11.4 +/-    0.95  0.060 / 0.060
G21     345.0          65.3                9.8 +/-    0.79      10.7 +/-    0.79  0.080 / 0.210
G26     268.4          13.9                7.3 +/-    1.30      18.8 +/-    1.30  0.070 / 0.190
G29     163.0          40.0               12.5 +/-    0.81      18.1 +/-    0.81  0.090 / 0.310