PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/09-01:12:30
G02     269.7          80.7                9.5 +/-    0.66       9.6 +/-    0.66  0.090 / 0.120
G05     168.7          21.9               14.0 +/-    2.26      29.4 +/-    2.26  0.130 / 0.120
G06     38.7           56.4               11.0 +/-    0.58      13.0 +/-    0.58  0.170 / 0.160
G12     320.4          54.9               10.0 +/-    0.80      11.9 +/-    0.80  0.100 / 0.230
G17     75.8           17.9               10.9 +/-    2.27      25.2 +/-    2.27  0.080 / 0.070
G19     62.5           34.8               12.1 +/-    1.51      19.3 +/-    1.51  0.080 / 0.090
G24     237.7          31.0               12.6 +/-    1.39      21.6 +/-    1.39  0.050 / 0.040
G25     317.2          18.3                8.1 +/-    2.67      18.6 +/-    2.67  0.040 / 0.050