PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-04:58:00
G01     59.1           29.4               17.9 +/-    1.43      31.8 +/-    1.43  0.040 / 0.030
G06     179.5          13.8                4.4 +/-    7.21      11.4 +/-    7.21  0.040 / 0.040
G07     141.3          23.7                8.2 +/-    2.81      16.5 +/-    2.81  0.090 / 0.180
G11     50.0           28.7                4.6 +/-    2.72       8.3 +/-    2.72  0.080 / 0.140
G13     262.2          36.8                8.8 +/-    2.07      13.5 +/-    2.07  0.040 / 0.060
G15     292.0          17.3                6.3 +/-    0.79      14.9 +/-    0.79  0.040 / 0.060
G17     254.0          76.7                9.3 +/-    0.37       9.5 +/-    0.37  0.030 / 0.020
G19     230.6          52.2                9.3 +/-    2.73      11.5 +/-    2.73  0.030 / 0.020
G28     17.5           60.6                5.7 +/-    2.44       6.4 +/-    2.44  0.070 / 0.140
G30     144.1          57.8                9.5 +/-    0.61      11.0 +/-    0.61  0.090 / 0.230