PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-05:57:40
G02     60.4           31.3                2.8 +/-    0.48       4.8 +/-    0.48  0.040 / 0.060
G05     56.7           59.8                2.5 +/-    1.07       2.9 +/-    1.07  0.050 / 0.060
G12     186.2          34.4                5.5 +/-    0.90       8.8 +/-    0.90  0.070 / 0.090
G13     127.0          15.3                6.5 +/-    1.71      16.0 +/-    1.71  0.090 / 0.090
G15     162.9          13.1                4.3 +/-    1.63      11.2 +/-    1.63  0.030 / 0.040
G21     273.3          20.6                4.0 +/-    1.43       8.7 +/-    1.43  0.040 / 0.040
G25     232.3          51.3                5.9 +/-    0.96       7.4 +/-    0.96  0.030 / 0.040
G29     334.4          60.0                4.2 +/-    0.88       4.8 +/-    0.88  0.040 / 0.040