PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-17:58:00
G01     259.6          38.5                8.2 +/-    1.22      12.2 +/-    1.22  0.040 / 0.040
G03     316.6          39.8                5.2 +/-    1.50       7.5 +/-    1.50  0.030 / 0.040
G10     134.3          10.4                8.8 +/-    2.42      24.2 +/-    2.42  0.040 / 0.050
G11     245.4          16.4                7.3 +/-    2.54      17.5 +/-    2.54  0.050 / 0.050
G14     51.9           46.0                5.2 +/-    0.67       6.9 +/-    0.67  0.050 / 0.100
G22     310.8          60.9                6.5 +/-    0.86       7.4 +/-    0.86  0.050 / 0.070
G25     45.5           14.0                4.8 +/-    1.84      12.2 +/-    1.84  0.070 / 0.180
G26     141.8          32.3                9.3 +/-    1.18      15.6 +/-    1.18  0.060 / 0.140
G31     43.8           65.2                5.6 +/-    0.35       6.1 +/-    0.35  0.210 / 0.370
G32     71.8           26.7                6.5 +/-    0.41      12.2 +/-    0.41  0.260 / 0.330