PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-19:28:10
G01     80.6           33.2                9.7 +/-    1.02      15.9 +/-    1.02  0.150 / 0.200
G07     132.1          38.9               13.1 +/-    0.96      19.4 +/-    0.96  0.180 / 0.320
G11     61.1           36.6               10.9 +/-    0.72      16.8 +/-    0.72  0.030 / 0.030
G13     285.1          37.5               12.1 +/-    0.80      18.4 +/-    0.80  0.030 / 0.040
G15     309.7          12.9               10.2 +/-    1.34      26.7 +/-    1.34  0.040 / 0.070
G17     222.0          58.0               12.6 +/-    2.01      14.5 +/-    2.01  0.040 / 0.070
G18     56.3           21.9                9.0 +/-    3.19      18.8 +/-    3.19  0.040 / 0.040
G19     218.9          33.1               12.5 +/-    1.59      20.5 +/-    1.59  0.040 / 0.050
G28     5.2            60.8               10.4 +/-    1.13      11.8 +/-    1.13  0.140 / 0.290
G30     124.6          68.5               13.2 +/-    0.61      14.0 +/-    0.61  0.140 / 0.190