PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-17:58:00
G01     36.3           5.8                11.3 +/-    1.54      34.1 +/-    1.54  0.190 / 0.270
G02     200.8          20.0               15.6 +/-    2.50      34.3 +/-    2.50  0.160 / 0.370
G06     168.5          55.6               15.8 +/-    0.90      18.7 +/-    0.90  0.210 / 0.370
G13     226.9          12.8               12.7 +/-    3.83      33.4 +/-    3.83  0.180 / 0.280
G15     261.1          6.8                10.8 +/-   16.59      32.0 +/-   16.59  0.240 / 0.210
G17     21.2           60.1               12.6 +/-    0.92      14.3 +/-    0.92  0.150 / 0.250
G19     315.0          70.4               12.4 +/-    0.59      13.1 +/-    0.59  0.040 / 0.040
G24     309.2          30.7               12.7 +/-    2.25      21.9 +/-    2.25  0.040 / 0.040
G28     88.3           39.6               12.9 +/-    1.25      18.8 +/-    1.25  0.040 / 0.030
G30     157.4          14.8               14.6 +/-    1.53      36.4 +/-    1.53  0.040 / 0.030