PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-16:58:00
G02     202.8          30.4               11.0 +/-    2.25      19.1 +/-    2.25  0.080 / 0.080
G06     162.4          65.8                9.2 +/-    0.68      10.0 +/-    0.68  0.070 / 0.090
G12     304.9          11.7                5.4 +/-   16.87      14.5 +/-   16.87  0.100 / 0.140
G17     30.3           53.5                8.1 +/-    0.94       9.8 +/-    0.94  0.090 / 0.140
G19     357.6          66.5                8.1 +/-    0.67       8.8 +/-    0.67  0.140 / 0.100
G24     301.0          36.1                9.6 +/-    1.66      14.9 +/-    1.66  0.090 / 0.110
G28     96.1           38.1                9.1 +/-    0.72      13.7 +/-    0.72  0.040 / 0.040