PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-03:28:10
G01     95.1           30.3               10.0 +/-    0.64      17.4 +/-    0.64  0.040 / 0.050
G07     121.9          46.6               10.9 +/-    0.70      14.4 +/-    0.70  0.040 / 0.050
G11     71.7           40.5                7.2 +/-    0.45      10.3 +/-    0.45  0.050 / 0.060
G13     299.0          35.0                5.8 +/-    1.52       9.1 +/-    1.52  0.040 / 0.050
G17     210.3          52.1                8.9 +/-    0.88      10.9 +/-    0.88  0.060 / 0.170
G18     64.5           22.8                6.3 +/-    0.68      12.9 +/-    0.68  0.060 / 0.160
G19     212.6          21.4                6.1 +/-    1.10      13.0 +/-    1.10  0.060 / 0.120
G28     335.2          61.7                5.3 +/-    0.83       6.0 +/-    0.83  0.060 / 0.100
G30     80.9           79.7                7.6 +/-    0.50       7.7 +/-    0.50  0.030 / 0.030