PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-05:28:00
G01     40.8           16.2                2.9 +/-    2.11       7.0 +/-    2.11  0.090 / 0.090
G06     174.4          36.3                7.5 +/-    0.69      11.6 +/-    0.69  0.080 / 0.100
G11     43.9           9.8                 2.4 +/-    4.33       6.8 +/-    4.33  0.070 / 0.220
G13     238.1          24.3                8.1 +/-    2.15      16.0 +/-    2.15  0.130 / 0.200
G15     269.9          13.3                3.5 +/-    1.98       9.1 +/-    1.98  0.100 / 0.560
G17     359.3          72.1                5.2 +/-    0.52       5.5 +/-    0.52  0.090 / 0.300
G19     273.3          70.0                6.5 +/-    0.75       6.8 +/-    0.75  0.040 / 0.060
G24     317.4          15.9                3.8 +/-    2.61       9.4 +/-    2.61  0.040 / 0.060
G28     57.7           54.3                6.8 +/-    0.98       8.1 +/-    0.98  0.040 / 0.030
G30     155.3          34.0                9.0 +/-    0.99      14.6 +/-    0.99  0.040 / 0.030