PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-01:58:10
G02     29.4           58.8                9.4 +/-    0.60      10.8 +/-    0.60  0.030 / 0.040
G05     144.3          58.0               13.7 +/-    0.57      15.9 +/-    0.57  0.030 / 0.030
G06     51.1           19.7                5.8 +/-    1.61      12.8 +/-    1.61  0.030 / 0.040
G12     208.7          73.4               11.6 +/-    0.85      12.1 +/-    0.85  0.050 / 0.040
G19     95.4           14.0               10.4 +/-    1.00      26.6 +/-    1.00  0.030 / 0.050
G25     304.6          48.9                9.1 +/-    2.10      11.6 +/-    2.10  0.030 / 0.050
G29     303.3          23.5                7.9 +/-    1.47      16.0 +/-    1.47  0.040 / 0.060