PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/13-23:58:00
G01     102.2          27.5               10.4 +/-    1.59      19.2 +/-    1.59  0.050 / 0.050
G07     115.0          50.8               10.7 +/-    0.38      13.4 +/-    0.38  0.040 / 0.040
G08     41.4           14.5                5.9 +/-    2.44      14.9 +/-    2.44  0.110 / 0.150
G11     80.3           42.3                9.6 +/-    0.90      13.5 +/-    0.90  0.090 / 0.190
G13     305.5          31.9                7.9 +/-    1.63      13.4 +/-    1.63  0.030 / 0.040
G17     206.6          44.7               11.6 +/-    0.72      15.6 +/-    0.72  0.030 / 0.040
G18     71.3           23.3                8.4 +/-    0.96      17.1 +/-    0.96  0.080 / 0.180
G19     210.1          16.3               -1.0 +/-    7.62      -2.4 +/-    7.62  0.090 / 0.110
G28     320.2          60.7                7.9 +/-    0.76       8.9 +/-    0.76  0.070 / 0.130
G30     45.1           79.9                9.8 +/-    0.32       9.9 +/-    0.32  0.070 / 0.130