PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-22:27:50
G01     74.2           33.3               11.2 +/-    1.08      18.3 +/-    1.08  0.100 / 0.210
G07     135.7          34.1               14.3 +/-    1.08      23.1 +/-    1.08  0.080 / 0.230
G11     57.3           34.3               10.5 +/-    0.49      16.8 +/-    0.49  0.030 / 0.050
G13     278.7          37.6               12.8 +/-    1.19      19.5 +/-    1.19  0.030 / 0.050
G15     304.7          14.9                7.2 +/-    2.74      18.0 +/-    2.74  0.320 / 0.290
G17     228.0          62.3               14.8 +/-    1.33      16.5 +/-    1.33  0.190 / 0.190
G18     51.8           19.9                9.3 +/-    5.15      20.4 +/-    5.15  0.050 / 0.100
G19     222.2          38.9               15.8 +/-    1.71      23.5 +/-    1.71  0.080 / 0.080
G28     15.4           59.8               11.5 +/-    0.70      13.1 +/-    0.70  0.030 / 0.030
G30     132.2          62.0               13.7 +/-    0.39      15.3 +/-    0.39  0.030 / 0.030