PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-05:27:50
G01     39.9           14.8               11.9 +/-    2.87      29.7 +/-    2.87  0.060 / 0.080
G06     174.0          38.3                8.0 +/-    0.94      12.0 +/-    0.94  0.060 / 0.100
G13     236.5          23.1                9.0 +/-    1.14      18.4 +/-    1.14  0.180 / 0.270
G15     268.2          12.6                4.6 +/-    1.16      12.2 +/-    1.16  0.140 / 0.260
G17     3.2            70.7                6.8 +/-    0.48       7.2 +/-    0.48  0.030 / 0.030
G19     279.1          70.9                7.7 +/-    0.56       8.1 +/-    0.56  0.040 / 0.030
G24     316.9          17.4                3.3 +/-    7.98       7.7 +/-    7.98  0.040 / 0.060
G28     60.6           53.6                6.7 +/-    1.41       8.1 +/-    1.41  0.040 / 0.070
G30     155.8          32.1                9.2 +/-    0.79      15.4 +/-    0.79  0.030 / 0.030