PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-10:28:00
G02     310.1          81.6                5.1 +/-    0.95       5.1 +/-    0.95  0.030 / 0.030
G05     170.3          23.7                5.8 +/-    2.47      11.7 +/-    2.47  0.030 / 0.030
G06     39.8           46.6                2.2 +/-    0.64       2.9 +/-    0.64  0.060 / 0.110
G12     319.4          67.1                1.9 +/-    0.78       2.1 +/-    0.78  0.070 / 0.130
G17     79.3           15.6                4.4 +/-    1.43      10.8 +/-    1.43  0.030 / 0.030
G19     68.6           29.7                5.6 +/-    0.37       9.8 +/-    0.37  0.030 / 0.030
G24     236.1          28.0                8.4 +/-    1.79      15.4 +/-    1.79  0.060 / 0.100
G25     317.3          21.4                2.1 +/-    3.54       4.4 +/-    3.54  0.050 / 0.090