PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-20:12:30
G02     221.3          65.1               14.8 +/-    0.65      16.2 +/-    0.65  0.060 / 0.100
G06     48.8           70.8               12.7 +/-    0.40      13.4 +/-    0.40  0.120 / 0.080
G12     319.0          38.4               10.7 +/-    0.60      15.9 +/-    0.60  0.120 / 0.320
G17     60.5           30.1               11.4 +/-    1.28      19.9 +/-    1.28  0.130 / 0.390
G19     45.5           45.0               11.2 +/-    0.49      15.1 +/-    0.49  0.040 / 0.060
G24     258.4          40.0               15.1 +/-    1.09      22.0 +/-    1.09  0.050 / 0.050
G28     124.4          14.6               13.8 +/-    2.74      34.7 +/-    2.74  0.050 / 0.080