PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-17:12:50
G01     259.6          38.5               10.4 +/-    0.95      15.6 +/-    0.95  0.070 / 0.140
G03     316.7          40.4                8.0 +/-    1.25      11.5 +/-    1.25  0.050 / 0.160
G10     134.3          10.3               12.1 +/-    2.89      33.6 +/-    2.89  0.030 / 0.030
G11     245.8          16.4                8.5 +/-    2.74      20.4 +/-    2.74  0.030 / 0.040
G14     51.5           46.2                6.8 +/-    0.93       9.1 +/-    0.93  0.050 / 0.050
G22     310.7          61.4                8.5 +/-    0.88       9.5 +/-    0.88  0.050 / 0.050
G25     45.5           14.1                5.7 +/-    1.33      14.5 +/-    1.33  0.060 / 0.090
G26     141.4          32.4               11.5 +/-    1.00      19.1 +/-    1.00  0.060 / 0.110
G31     43.8           64.8                7.9 +/-    0.41       8.6 +/-    0.41  0.210 / 0.310
G32     71.9           26.5                8.2 +/-    0.95      15.4 +/-    0.95  0.220 / 0.300